Publications

  • 230. “Varying the inter-pentacene distances to tune singlet fission,” I. Papadopoulos, J. Zirzlmeier, C. Hetzer, Y. J. Bae, M. D. Krzyniak, M. R. Wasielewski, T. Clark, R. R. Tykwinski, D. M. Guldi, J. Am. Chem. Soc.141, pp 6191–6203(DOI: 10.1021/jacs.8b09510).
  • 229. “Davydov Splitting and Singlet Fission in Excitonically Coupled Pentacene Dimers,” B. S. Basel, C. Hetzer, J. Zirzlmeier, D. Thiel, R. Guldi, F. Hampel, T. Clark, D. M. Guldi, R. R. Tykwinski, Chem. Sci. 2019,10, 3854–3863 (DOI: 10.1039/c9sc00384c).
  • 228. “[3]Rotaxanes with mixed axles: Polyynes and Cumulenes,” M. Franz, J. A. Januszewski, F. Hampel, R. R. Tykwinski, Eur. J. Org. Chem., accepted MS#ejoc.201900188.
  • 227. “A Molecular Ruler for Singlet Fission: Pentacenes,” B. S. Basel, I. Papadopoulos, D. Thiel, J. Zirzlmeier, T. Clark, D. M. Guldi, R. R. Tykwinski, Trends in Chemistry 2019, 1, 11–21 (DOI: 10.1016/j.trechm.2019.02.002). 
  • 226. “A Tetraethynyl[5]cumulene,” J. L. Marshall, F. Arslan, J. A. Januszewski, M. J. Ferguson, R. R. Tykwinski, Helv. Chim. Acta 2019,102, e190001(DOI: 10.1002/hlca.201900001).
  • 225. “Structural and Electronic Effects of Stepwise Reduction of a Tetraaryl[3]Cumulene,” S. N. Spisak, M. U. Bühringer, Z. Wei, R. R. Tykwinski, M. A. Petrukhina, Angew. Chem. Int. Ed. 2019, 58, 2023–2028(DOI: 10.1002/anie.201812283).
  • 224. Building from Ga-porphyrins: Synthesis of Ga-acetylide complexes using acetylenes and polyynes,” V. Walter, Y. Gao, N. Grzegorzek, M. Krempe, F. Hampel, N. Jux, R. R. Tykwinski, Angew. Chem. Int. Ed. 2019,58, 494–498.(DOI: 10.1002/anie.201812142).
  • 223. “Intermolecular Singlet Fission in Unsymmetrical Derivatives of Pentacene,” R. Casillas, M. Adam, P. B. Coto, A. R. Waterloo, J. Zirzlmeier, S. R. Reddy, F. Hampel, R. McDonald, R. R. Tykwinski, M. Thoss, D. M. Guldi, Adv. Energ. Mater. 2019, 9, 1802221 (DOI: 10.1002/aenm.201802221).
  • 222. “Tuning Intramolecular Förster Resonance Energy Transfer and Activating Intramolecular Singlet Fission,” G. Lavarda, J. Zirzlmeier, M. Gruber, P. Rezghi Rami, R. R. Tykwinski, T. Torres, D. M. Guldi, Angew. Chem. Int. Ed. 2018, 57, 16291–16295(DOI: 10.1002/anie.201808652).
  • 221.  Determination of Hansen Solubility Parameters of Asphaltene Model Compounds,” M. Morimoto, N. Fukatsu, R. Tanaka, T. Takanohashi, H. Kumagai, T. Morita, R. R. Tykwinski, D. Scott, J. M. Stryker, M. R. Gray, T. Sato, H. Yamamoto, Energy Fuels 201832, 11296–11303 (DOI: 10.1021/acs.energyfuels.8b02661).
  • 220.  “Singlet Fission for Photovoltaics–Reaching130% Injection Efficiency,” A. Kunzmann, M. Gruber, R. Casillas, J. Zirzlmeier, M. Stanzel, W. Peukert, R.R. Tykwinski, D.M. Guldi, Angew. Chem. Int. Ed. 2018, 57, 10742–10747 (DOI: 10.1002/anie.201801041). 
  • 219.  “Evidence for CT-mediation in the primary events of singlet fission in a weakly-coupled pentacene dimer,” B.S. Basel, J. Zirzlmeier, C. Hetzer, S.R. Reddy, B.T. Phelan, M.D. Krzyaniakd, P.B. Coto, M.K. Volland, R.M. Young, T. Clark, M. Thoss, R.R. Tykwinski, M.R. Wasielewski, D.M. Guldi, Chem 2018, 4, 1092–1111 (DOI: 10.1016/j.chempr.2018.04.006).
  • 218.  “Double bonds? Studies on the barrier to rotation about the cumulenic C=C bonds of tetraaryl[n]cumulenes (n= 3, 5, 7, 9),” M.U. Bühringer, K. Padberg, M.D. Phleps, H. Maid, C. Placht, C. Neiss, M.J. Ferguson, A. Görling, R.R. Tykwinski, Angew. Chem. Int. Ed. 2018, 57, 8321–8325(DOI: 10.1002/anie.201802137).
  • 217.  “Tuning Pentacene Based Dye-Sensitized Solar Cells,” A. Kunzmann, M. Gruber, R. Casillas, R.R. Tykwinski, R. Costa, D.M. Guldi, Nanoscale 201810, 8515–8525 (DOI: 10.1039/C8NR01502C).
  • 216.  Review. “Pentacene Dimers as a critical tool for the investigation of intramolecular singlet fission,” C. Hetzer, D.M. Guldi, R.R. Tykwinski, Chem. Eur. J. 2018, 24, 8245–8257 (DOI: 10.1002/chem.201705355).
  • 215.  “Laser Desorption vs. Electrospray of Polyyne-threaded Rotaxanes: Preventing covalent cross-linking and promoting noncovalent aggregation,” T.S. Neugebauer, M. Franz, S. Frankenberger, R.R. Tykwinski, T. Drewello, J. Chem. Phys. 2018, 148, 064308 (DOI:10.1063/1.5013123).
  • 214.  “Acenequinocumulenes: Lateral and vertical pi-extended analogs of tetracyanoquinodimethane (TCNQ),” M. Gruber, K. Padberg, J. Min, A.R. Waterloo, F. Hampel, H. Maid, T. Ameri, C.J. Brabec, R.R. Tykwinski, Eur. J. 2017, 23, 17829–17835(DOI: 10.1002/chem.201704314).
  • 213.  “Two-photon absorption in pentacene dimers: The importance of the tether using upconversion as an indirect route to singlet fission,” E. Garoni, J. Zirzlmeier, B.S. Basel, C. Hetzer, K. Kamada, D.M. Guldi, R.R. Tykwinski, J. Am. Chem. Soc. 2017, 139, 14017−14020 (DOI: 10.1021/jacs.7b08287).
  • 212.  Review. “Odd [n]cumulenes (n= 3, 5, 7, 9): Synthesis, characterization, and reactivity,” D. Wendinger, R.R. Tykwinski, Acc. Chem. Res. 2017, 50, 1468–1479 (DOI: 10.1021/acs.accounts.7b00164).
  • 211.  Review. “Reductive Aromatization/Dearomatization and Elimination Reactions to Access Conjugated Polycyclic Hydrocarbons, Heteroacenes, and Cumulenes,” J.L. Marshall, D. Lehnherr, Benjamin D. Lindner, ChemPlusChem 2017, 82, 967–1001 (DOI: 10.1002/cplu.201700168).
  • 210.  “Synthetic and NMR Studies on Hexaphenylcarbodiphosphorane (Ph3P=C=PPh3),” M. Gruber, W. Bauer, H. Maid, K. Schoell,* R.R. Tykwinski, Inorg. Chim. Acta 2017, 468, 152–158 (DOI: 10.1016/j.ica.2017.04.018).
  • 209.  “Unified Model for Singlet Fission in a Covalent Pentacene Dimer in Liquid and Solid Solutions,” B.S. Basel, J. Zirzlmeier, C. Hetzer, B.T. Phelan, M.D. Krzyaniak, S.R. Reddy, P.B. Coto, N.E. Horwitz, R.M. Young, F. White, F. Hampel, T. Clark, M. Thoss, R.R. Tykwinski, M.R. Wasielewski, D.M. Guldi, Nat. Comm. 2017, 8, 15171 (DOI: 10.1038/ncomms15171).
  • 208.  “Polymerization of Acetylene: Polyynes, but not Carbyne,” D. Prenzel, R.W. Kirschbaum, W.A. Chalifoux, R. McDonald, M.J. Ferguson, T. Drewello, R.R. Tykwinski, Org. Chem. Frontiers 20174, 668–674 (DOI: 10.1039/C6QO00648E).
  • 207.  “Synthesis, physical properties, and chemistry of donor/acceptor substituted pentacenes,” D. Lehnherr, M. Adam, A.H. Murray, F. Hampel, R. McDonald, R.R. Tykwinski, Can. J. Chem. 2017, 95, 303–314.
  • 206.  “Tautomerization and Dimerization of 6,13-Disubstituted Derivatives of Pentacene,” M. Garcia-Borràs, A. Konishi, A. Waterloo, Y. Liang, Y. Cao, D. Lehnherr, C. Hetzer, F. Hampel, K.N. Houk, R.R. Tykwinski, Chem. Eur. J. 2017, 23, 6111–6117 (DOI: 10.1002/chem.201604099).
  • 205.  “Triethynylmethanol Derivatives: Stable Acetylenic Building Blocks for Surface Chemistry,” D. Prenzel, T. Sander, J. Gebhardt, H. Soni, F. Hampel, A. Görling, S. Maier, R.R. Tykwinski, Chem. Eur. J. 2017, 23, 1846–1852 (DOI: 10.1002/chem.201604404).
  • 204.  “Panchromatic quaternary polymer/fullerene BHJ solar cells, based on the novel silicon naphthalocyanine and silicon phthalocyanine dye sensitizers,” L. Ke, N. Gasparini, J. Min, H. Zhang, M. Adam, S. Fladischer, K. Forberich, C. Zhang, E. Spiecker, R.R. Tykwinski, C.J. Brabec, T. Ameri, J. Mater. Chem2017, 5, 2550–2562.
  • 203.  “The Single Molecule Electrical Conductance of a Rotaxane-Hexayne Supramolecular Assembly,” D.C. Milan, M. Krempe, A.K. Ismael, L.D. Movsisyan, M. Franz, I. Grace, R.J. Brooke, W. Schwarzacher, S.J. Higgins, H.L. Anderson, C.J. Lambert, R.R. Tykwinski, R.J. Nichols, Nanoscale 2017, 9, 355–361 (DOI: 10.1039/C6NR06355A).
  • 202.  “Enhancing the dispersability of TiOnanorods and gaining control over region-selective layer formation,” S. Etschel, R.R. Tykwinski, M. Halik, Langmuir 2016, 32, 10604–10609.
  • 201.  “Pyridyl endcapped polyynes: Stabilized wire-like molecules,” M. Krempe, R. Lippert, F. Hampel, I. Ivanovic-Burmazovic, N. Jux, R.R. Tykwinski, Angew. Chem. Int. Ed2016, 55, 14802–14806 (DOI: 10.1002/anie.201608633).
  •  200.  “Deciphering the role of impurities in methylammonium iodide and their impact on performance of perovskite solar cells,” I. Levchuk, Y. Hou, M. Gruber, M. Brandl, P. Herre, X. Tang, M. Batentschuk, A. Osvet, H. Rainer, W. Peuckert, R.R. Tykwinski, C.J. Brabec, Adv. Mater. Interfaces 2016, 3, 1600593.
  • 199.  “Carbon-Rich Dinuclear Ruthenium Bisallenylidene Complexes,” S. Spörler, L. Müller, A.R. Waterloo, R.R. Tykwinski, N. Burzlaff, J. Organomet. Chem. 2016, 821, 122–129.
  • 198.  “Carbon-Rich Cyclopentadienyl Ruthenium Allenylidene Complexes,” S. Spörler, F. Strinitz, P. Rodehutskors, L. Müller, A.R. Waterloo, M. Dürr, E. Hübner, I. Ivanović-Burmazović, R.R. Tykwinski, N. Burzlaff, New J. Chem. 2016, 40, 6127–6134.
  • 197.  “Nonlinear optical properties of polyynes: An experimental prediction for carbyne,” N. R. Agarwal, A. Lucotti, M. Tommasini, W.A. Chalifoux, R.R. Tykwinski, J. Phys. Chem.2016, 120, 11131–11139 (DOI: 10.1021/acs.jpcc.6b03071).
  • 196.  “Unexpected Michael additions en route to 2.3,8.9-dibenzanthanthrenes that feature interesting structural properties,” C. Reus,* M.P. Lechner, M. Schulze, D. Lungerich, C. Diner, J.M. Stryker, F. Hampel, N. Jux, R.R. Tykwinski, Chem. Eur. J. 2016, 22, 9097–9101 (DOI: 10.1002/chem.201601435).
  • 195.  “Diels-Alder cycloaddition of tetraphenylcyclopentadienone and 1,3,5-hexatriynes,” A.-C. Sale, A.H. Murray, D. Prenzel, F. Hampel, L. De Luca, R.R. Tykwinski, Eur. J. Org. Chem. 2016, 2274–2283.
  • 194.  “Solution-Based Intramolecular Singlet Fission in Cross Conjugated Pentacene Dimers,” J. Zirzlmeier, R. Casillas, S.R. Reddy, P.B. Coto, D. Lehnherr, E.T. Chernick, I. Papadopoulos, M. Thoss, R.R. Tykwinski, D.M. Guldi, Nanoscale 2016, 8, 10113–10123.
  • 193.  “Synthesis of 1-Bromopyrene and 1-Pyrenecarbaldehyde,” M. Schulze, A. Scherer, C. Diner, R.R. Tykwinski, Org. Synth. 2016, 93, 100–114.
  • 192.  “A series of pyrene-substituted silicon phthalocyanines as near-IR sensitizers in organic ternary solar cells,” L. Ke, J. Min, M. Adam, N. Gasparini, Y. Hou, J.D. Perea, W. Chen, H. Zhang, S. Fladischer, A.-C. Sale, E. Spiecker, R.R. Tykwinski, C.J. Brabec, T. Ameri, Adv. Energy Mater. 2016, 6, 1502355 (DOI: 10.1002/aenm.201502355).
  • 191.  “Polyyne Rotaxanes: Stabilization by Encapsulation,” L. Movsisian, M. Franz, F. Hampel, A. Thompson, R.R. Tykwinski, H.L. Anderson, J. Am. Chem. Soc. 2016138, 1366−1376.
  • 190.  “Synthesis and Aggregation Behavior of Chiral Naphthoquinoline Petroporphyrin Asphaltene Model Compounds,” M. Schulze, A. Scherer, F. Hampel, J.M. Stryker, R.R. Tykwinski, Chem. Eur. J. 2016, 22, 3378–3386.
  • 189.  Review. “Carbon atomic wires: 1-D systems with tunable properties,” C.S. Casari, M. Tommasini, R.R. Tykwinski, A. Milani, Nanoscale 2016, 8, 4414–4435 (DOI: 10.1039/C5NR06175J).
  • 188.  “Interplay Between Solution-Processing and Electronic Structure in Metal-Free Organic Magnets Based on a TEMPO Pentacene Derivative,” C. Arantes, E.T. Chernick, M. Gruber, M.L. Rocco, T. Chassé, R.R. Tykwinski, M.B. Casu, J. Phys. Chem. C 2016, 120, 32893294.
  • 187.  “Steroid-Derived Naphthoquinoline Asphaltene Model Compounds: Hydriodic Acid is the Active Catalyst in I2-Promoted Multi-Component Cyclocondensation Reactions,” M. Schulze, D.E. Scott, A. Scherer, F. Hampel, R.J. Hamilton, M.R. Gray, R.R. Tykwinski, J.M. Stryker, Org. Lett. 2015, 17, 5930−5933.
  • 186.  Review. “Carbyne: The molecular approach,” R.R. Tykwinski, Chem. Rec. 2015, 15, 1060–1074.
  • 185.  “Green Processing of Metal Oxide Core-Shell Nanoparticles as Low-Temperature Dielectrics in Organic Thin-Film Transistors,” L.F. Portilla, S.H. Etschel, R.R. Tykwinski, M. Halik, Adv. Mater. 2015, 27, 5950–5954.
  • 184.  “Catalytic hydrodenitrogenation of asphaltene model compounds,” J. Mierau, N. Zhang, X. Tan, A. Scherer, J.M. Stryker, R.R. Tykwinski, M.R. Gray, Energy Fuels 2015, 29, 6724–6733.
  • 183.  “Axial coordination of pyridyl-containing pentacenes to porphyrins,” A.R. Waterloo, R. Lippert, N. JuxR.R. Tykwinski, J. Coord. Chem. 2015, 68, 3088–3098.
  • 182.  “Thermal dimerization of [n]cumulenes (n= 5, 7, 9),” D. Wendinger, J.A. Januszewski, F. Hampel, R.R. Tykwinski, ChemComm 2015, 51, 14877–14880.
  • 181.  “Controlling the Chromaticity of Small-Molecule Light-Emitting Electrochemical Cells Based on TIPS-Pentacene,” M.D. Weber, M. Adam, R.R. Tykwinski, R.D. Costa, Adv. Funct. Mater. 2015, 25, 5066–5074.
  • 180.  “Region-selective deposition of core-shell nanoparticles for 3D hierarchical assemblies by the Huisgen-1,3-dipolar cycloaddition,” S.H. Etschel, L.F. Portilla, J. Kirschner, R.R. Tykwinski, M. Halik, Angew. Chem. Int. Ed. 2015, 54, 9235–9238. 
  • 179.  “Cumulene rotaxanes: Stabilization and study of [9]cumulenes,” M. Franz, J.A. Januszewski, D. Wendinger, C. Neiss, L.D. Movsisyan, F. Hampel, H.L. Anderson, A. Görling, R.R. Tykwinski, Angew. ChemInt. Ed. 2015, 54, 6645–6649.
  • 178.  “Singlet fission in pentacene dimers,” J. Zirzlmeier, D. Lehnherr, P.B. Coto, E.T. Chernick, R. Casillas, B. Basel, M. Thoss, R.R. Tykwinski, D.M. Guldi, PNAS 2015, 112, 5325–5330.
  • 177.  Addition Reactions of Olefins to Asphaltene Model Compounds,” S.D. Cardozo, M. Schulze, R.R. Tykwinski. M.R. Gray, Energy Fuels 2015, 29, 1494–1502.
  • 176.  “Aggregation of asphaltene model compounds using a porphyrin tethered to a carboxylic acid,” M. Schulze, M.P. Lechner, J.M. Stryker, R.R. Tykwinski, Org. Biomol. Chem. 2015, 13, 6984–6991.
  • 175.  “Laser Desorption Mass Spectrometry of Endgroup-Protected Linear Polyynes – Evidence of Laser-Induced Cross-Linking,” R.W. Kirschbaum, D. Prenzel, S. Frankenberger, R.R. Tykwinski, T. Drewello, J. Phys. Chem. C 2015, 119, 2861–2870.
  • 174.  “Scalable, Chromatography-free Synthesis of Alkyl-tethered Pyrene-based Materials. Application to First-generation “Archipelago Model” Asphaltene Compounds,” C. Diner, D.E. Scott, R.R. Tykwinski, M.R. Gray, J.M. Stryker, J. Org. Chem. 2015, 80, 1719–1726.
  • 173.  “Pentacene appended to a TEMPO Stable Free RadicaL: The Effect of Magnetic-Exchange Coupling on Photoexcited Pentacene,” E.T. Chernick, R. Casillas, J. Zirzlmeier, D.M. Gardner, M. Gruber, H. Kropp, K. Meyer, M.R. Wasielewski, D.M. Guldi, R.R. Tykwinski, J. Am. Chem. Soc. 2015, 137, 857–863.
  • 172.  “pi-Conjugation and end-group effects in long cumulenes: Raman spectroscopy and DFT calculations,” M. Tommasini, A. Milani, D.Fazzi, A.Lucotti, C.Castiglioni, J.A. Januszewski, D.Wendinger, R.R. Tykwinski, J. Phys. Chem. C 2014, 118, 26415–26425.
  • 171.  “Donor and/or acceptor substituted expanded radialenes: Theory, synthesis, and properties,” S. Ramsaywack, S. Karaca, M. Gholami, F. Hampel, R. McDonald, N. Elmaci, H.P. Luethi, R.R. Tykwinski, J. Org. Chem. 2014, 79, 10013–10029.
  • 170.  “Carbon rich ruthenium allenylidene complexes bearing heteroscorpionate ligands” F. Strinitz, J. Tucher, J.A. Januszewski, A.R. Waterloo, P. Stegner, S. Förtsch, E. Hübner, R.R. Tykwinski, N. Burzlaff, Organometallics 2014, 33, 5129–5144.
  • 169.  “Aryl Substitution of Pentacenes, A.R. Waterloo, A.-C. Sale, D. Lehnherr, F. Hampel, R.R. Tykwinski, Beilstein J. Org. Chem. 2014, 10, 1692–1705. 
  • 168.  “Elucidation of structural information achievable for asphaltenes via collision-activated dissociation of their molecular ions in MSexperiments: A model compound study,” T.M. Jarrell, C. Jin, J.S. Riedeman, B.C. Owen, X. Tan, A. Scherer, R.R. Tykwinski, M. Gray, P. Slater, H.I. Kenttämaa, Fuel 2014, 133, 106–114.
  • 167.  “Synthesis and properties of long [n]cumulenes (n≥5),” J.A. Januszewski, R.R. Tykwinski, Chem. Soc. Rev. 2014, 43, 3184–3203.
  • 166.  “Unexpected Formation of a [4]Radialene and Dendralenes by Addition of Tetracyanoethylene to a Tetraaryl[5]cumulene,” J.A. Januszewski, F. Hampel, C. Neiss, A. Görling, R.R. Tykwinski, Angew. Chem. Int. Ed. 2014, 53, 3743–3747.
  • 165.  “Binary Interactions in Coke Formation from Model Compounds and Asphaltenes,” A.H. Alshareef, X. Tan, C. Diner, J. Zhao, A. Scherer, K. Azyat, J.M. Stryker, R.R. Tykwinski, M.R. Gray, Energy Fuels 2014, 28, 1692–1700.
  • 164.  “Optically Pure, Monodisperse cis-Oligodiacetylenes: Aggregation induced chirality enhancement,” E.T. Chernick, G. Börzsönyi, C. Steiner, M. Ammon, S. Gessner, S. Frühbeißer, F. Gröhn, S. Maier, R.R. Tykwinski, Angew. Chem. Int. Ed. 2014, 53, 310–314. 
  • 163.  Review. “Oligomers from sp-hybridized carbon: Cumulenes and polyynes,” S. Frankenberger, J. Januszewski, R.R. Tykwinski, Struct. Bond. 2014, 159, 219–256.
  • 162.  “Allenylidene complexes based on Pentacenequinone,” F. Strinitz, A. Waterloo, J. Tucher, E. Hübner, R.R. Tykwinski, N. Burzlaff, Eur. J. Inorg. Chem. 2013, 5181–5186.
  • 161.  “Synthesis and derivatization of expanded [n]radialenes (n= 3, 4),” M. Gholami, S. Ramsaywack, M.N. Chaur, A.H. Murray, R. McDonald, M.J. Ferguson, L. Echegoyen, R.R. Tykwinski,Chem. Eur. J. 2013, 19, 15120–15132.
  • 160.  “Structure and chain polarization of long polyynes investigated with IR and Raman spectroscopy,” N.R. Agarwal, A. Lucotti, D. Fazzi, M. Tommasini, C. Castiglioni, W.A. Chalifoux, R.R. Tykwinski, J. Raman Spectr. 2013, 44, 13981410.
  • 159.  Review. Carbon-rich Nanostructures: The Conversion of Acetylenes into Materials,” E.T. Chernick, R.R.Tykwinski, J. Phys. Org. Chem. 2013, 26 742749.
  • 158.  “An unsymmetrical pentacene derivative with ambipolar behaviour in organic thin-film transistors,” S.H. Etschel, A.R. Waterloo, J.T. Margraf, A.Y. Amin, F. Hampel, C.M. Jäger, T. Clark, M. Halik, R.R. Tykwinski, ChemComm 2013, 49, 6725–6727.
  • 157.  “Synthesis and structure of tetraarylcumulenes: Characterization of bond length alternation versus length,” J.A. Januszewski, D. Wendinger, C. Methfessel, F. Hampel, R.R. Tykwinski, Angew. Chem. Int. Ed. 2013, 52, 1817–1821.
  • 156.  “Synthesis, Characterization, and Solid-State Polymerization of Cross-conjugated Octatetraynes,” Y. Zhao, T. Luu, G.M. Bernard, T. Taerum, R. McDonald, R.E. Wasylishen, R.R. Tykwinski, Can. J. Chem. 2012 90, 994–1014.
  • 155.  “Absolute Raman Intensity Measurements and Determination of the Vibrational Second Hyperpolarizability of Adamantyl Endcapped Polyynes,” A. Lucotti, M. Tommasini, D. Fazzi, M. Del Zoppo, W.A. Chalifoux, R.R. Tykwinski, G. Zerbi, J. Raman Spectr. 2012, 43, 1293–1298.
  • 154.  “Isomerically Pure syn-Anthracenedithiophenes: Synthesis, Properties, and FET Performance,” D. Lehnherr, A.R. Waterloo, K.P. Goetz, M.M. Payne, F. Hampel, J.E. Anthony, O.D. Jurchescu, R.R. Tykwinski, Org. Lett. 2012, 14, 3660–3663.
  • 153.  “Synthesis of Polyyne Rotaxanes,” L.D. Movsisyan, D.V. Kondratuk, M. Franz, A.L. Thompson, R.R. Tykwinski, H.L. Anderson, Org. Lett. 2012, 14, 3424–3436. 
  • 152.  “Thermal Cracking of Substituted Cholestane–Benzoquinoline Asphaltene Model Compounds,” A.H. Alshareef, A. Scherer, J.M. Stryker, R.R. Tykwinski, M.R Gray, Energy Fuels 2012, 26, 3592–3603.
  • 151.  “Synthesis and 13C NMR Spectroscopy of alpha,omega-Diphenylpolyynes with 13C labeling,” R.R. Tykwinski, T. Luu, Synthesis 2012, 1915–1922.
  • 150.  “Effect of Chemical Structure on Cracking and Coking of Archipelago Model Compounds of Asphaltenes,” A.H. Alshareef, A. Scherer, X. Tan, K. Azyat, J.M. Stryker, R.R. Tykwinski, M.R. Gray, Energy Fuels 2012, 26, 1828−1843.
  • 149.  “Incorporation of Steroid Biomarkers into Petroleum Model Compounds,” A. Scherer, F. Hampel, M.R. Gray, J.M. Stryker, R.R. Tykwinski, J. Phys. Org. Chem. 2012, 25, 597–606.
  • 148.  “Density Functional Theory Investigation of the Contributions of π-π Stacking and Hydrogen Bonding Interactions to the Aggregation of Model Asphaltene Compounds,” L.M. da Costa, S.R. Stoyanov, S. Gusarov, X. Tan, M.R. Gray, J.M. Stryker, R.R. Tykwinski, J.W. de M. Carneiro, P.R. Seidl, A. Kovalenk, Energy Fuels 2012, 26, 2727–2735.
  • 147.  “Acenes with a Click,” A.R. Waterloo, S. Kunakom, F. Hampel, R.R. Tykwinski, Macromol. Chem. Phys. 2012, 213, 1020–1032.
  • 146.  “Synthesis and Properties of Isomerically Pure Anthrabisbenzothiophenes,” D. Lehnherr, R. Hallani, R. McDonald, J.E. Anthony, R.R. Tykwinski, Org. Lett. 2012, 14, 62–65.
  • 145.  “3D-RISM-KH molecular theory of solvation and density functional theory investigation of the role of water in the aggregation of model asphaltenes,” L.M. da Costa, S. Hayaki, S.R. Stoyanov S. Gusarov, X. Tan, M.R. Gray, J.M. Stryker, R.R. Tykwinski, J.W. de M. Carneiro, H. Sato, P.R. Seidl, A. Kovalenko, Phys. Chem. Chem. Phys. 2012, 14, 3922–3934.
  • 144.  “Bent Polyynes: Ring Strain Studied by Raman and Infrared Spectroscopies,” A. Lucotti, M. Tommasini, W.A. Chalifoux, D. Fazzi, G. Zerbi, R.R. Tykwinski, J. Raman Spectr. 2012, 43, 95–101.
  • 143.  “Adamantyl endcapped polyynes,” W.A. Chalifoux, M.J. Ferguson, R. McDonald, F. Melin, L. Echegoyen, R.R. Tykwinski, J. Phys. Org. Chem. 2012, 25, 69–76.
  • 142.  “The Supramolecular Assembly Model for Aggregation of Petroleum Asphaltenes,” M.R. Gray, R.R. Tykwinski, J.M. Stryker, X. Tan, Energy Fuels 2011, 25, 3125–3134.
  • 141.  “Chiral Propargyl Alcohols via the Enantioselective Addition of Terminal Di- and Triynes to Aldehydes,” E.R. Graham, M.J. Ferguson, R.R. Tykwinski, J. Org. Chem. 2011, 76, 6574–6583.
  • 140.  “Carbon Disulfide Reagent Allows the Characterization of Nonpolar Analytes by Atmospheric Pressure Chemical Ionization (APCI) Mass Spectrometry,” B.C. Owen, J. Gao, D.J. Borton II, L.M. Amundson, E.F. Archibold, X. Tan, K. Azyat, R.R. Tykwinski, M.R. Gray, H.I. Kenttämaa, Rapid. Commun. Mass Spec. 2011, 5, 1924–1928.
  • 139.  “Conjugated Oligomers and Polymers Based on Anthracene, Tetracene, Pentacene, Naphthodithiophene, and Anthradithiophene Building Blocks,” D. Lehnherr, R.R. Tykwinski, Aust. J. Chem. 2011, 64, 919–929.
  • 138.  “Shape-persistent Macrocycles: Self-assembly Reactions and Characterization by Hyperpolarized 129Xe NMR Spectroscopy,” K. Campbell, K.J. Ooms, M.J. Ferguson, P.J. Stang, R.E. Wasylishen, R.R. Tykwinski, Can. J. Chem2011, 89, 1264–1276.
  • 137.  “Formation of Archipelago Structures during Thermal Cracking Implicates a Chemical Mechanism for the Formation of Petroleum Asphaltenes,” A.H. Alshareef, A. Scherer, X. Tan, K. Azyat, J.M. Stryker, R.R. Tykwinski, M.R. Gray, Energy Fuels 2011, 25, 2130–2136.
  • 136.  “Photogenerated cumulenic structure of adamantyl endcapped linear carbon chains: An experimental and computational investigation based on IR spectroscopy,”M.M. Yildizhan, D. Fazzi, A. Milani, L. Brambilla, M. Del Zoppo, W.A. Chalifoux, R.R. Tykwinski, G. Zerbi, J. Chem. Phys. 2011, 134, 124512.
  • 135.  “Two-Photon Absorption Properties Of Two-Dimensional pi-Conjugated Chromophores: Combined Experimental and Theoretical Study,” K. Ohta, S. Yamada, K. Kamada, A.D. Slepkov, F.A. Hegmann, R.R. Tykwinski, L.D. Shirtcliff, M.M. Haley, P. Sałek, F. Gel’mukhaonov, H. Ågren, J. Phys. Chem. A 2011, 115, 105–117.
  • 134.  “Reactions of Terminal Polyynes with Benzyl Azide,” T. Luu, B.J. Medos, E.R. Graham, D. Vallee, R. McDonald, M.J. Ferguson, R.R. Tykwinski, J. Org. Chem. 2010, 75, 8498–8507.
  • 133.  “Molecular Structures of Asphaltenes Based on the Dissociation Reactions of Their Ions in Mass Spectrometry,” D. Borton II, D.S. Pinkston, M.R. Hurt, X. Tan, K. Azyat, A. Scherer, R.R. Tykwinski, M.R. Gray, K. Qian, H.I. Kenttämaa, Energy Fuels 2010, 24, 5548–5559.
  • 132.  “Measurement of Cracking Kinetics of Pure Model Compounds by Thermogravimetric Analysis,” A.H. Alshareef, K. Azyat, R.R. Tykwinski, M.R. Gray, Energy Fuels 2010, 24, 3998–4004.
  • 131.  “Comparing Laser Desorption Laser Ionization Mass Spectra of Asphaltenes and Model Compounds,” H. Sabbah, A.L. Morrow, A.E. Pomerantz, O.C. Mullins, X. Tan, M.R. Gray, K. Azyat, R.R. Tykwinski, R.N. Zare, Energy Fuels 2010, 24, 3589–3594.
  • 130.  “Synthesis of Polyynes to model the sp-Carbon Allotrope Carbyne,” W.A. Chalifoux, R.R. Tykwinski, Nat. Chem. 2010, 2, 967–971.
  • 129.  “The Fritsch–Buttenberg–Wiechell Rearrangement: Modern Applications for an Old Reaction,” E. Jahnke, R.R. Tykwinski, ChemComm 2010, 46, 3235–3249.
  • 128.  “Oligomers Based on Pentacene Building Blocks,” D. Lehnherr, R.R. Tykwinski, Materials 2010, 3, 2772–2800.
  • 127.  “A Modular Synthetic Approach to Conjugated Di-, Tri-, and Tetramers of Pentacene,” D. Lehnherr, A.H. Murray, R. McDonald, R.R. Tykwinski, Angew. Chem. Int. Ed. 2010, 49, 6190–6194.
  • 126.  “Chiral and Achiral Charge-Transfer Chromophores with a Dendralene-Type Backbone by Electronically Controlled Cycloaddition/Cycloreversion Cascades,” B.B. Frank, M. Kivala, B. Camafort Blanco, B. Breiten, W.B. Schweizer, P.R. Laporta, I. Biaggio, E. Jahnke, R.R. Tykwinski, C. Boudon, J.–P. Gisselbrecht, F. Diederich, Eur. J. Org. Chem2010, 2487–2503.
  • 125.  “Toward carbyne: Synthesis and stability of really long polyynes,” R.R. Tykwinski, W. Chalifoux, S. Eisler, A. Lucotti, M. Tommasini, D. Fazzi, M. Del Zoppo, G. Zerbi, Pure Appl. Chem. 2010, 82, 891–904.
  • 124.  “Pentacene-Based Polycyclic Aromatic Hydrocarbon Dyads with Cofacial Solid-state pi-Stacking,” D. Lehnherr, A.H. Murray, R. McDonald, M.J. Ferguson, R.R. Tykwinski, Chem. Eur. J. 2009, 15, 12580–12584.
  • 123.  “Synthesis and Solid-state Analysis of Bond Length Alternation in sp-hybridized Polyyne Chains,” W.A. Chalifoux, R. McDonald, M.J. Ferguson, R.R. Tykwinski, Angew. ChemInt. Ed. 2009, 48, 7915–7919.
  • 122.  “Natural Occurring and Synthetic Polyyne Glycosides,” Y. Pan, T.L. Lowary, R.R. Tykwinski, Can. J. Chem. 2009, 87, 1565–1582.
  • 121.  “Pentafluorophenyl End-capped Polyynes as Supramolecular Building Blocks,” R.R. Tykwinski, J. Kendall, R. McDonald, Synlett 2009, 2068–2075x.
  • 120.  “Pentacene-Based Dendrimers: Synthesis and Thin Film Photoconductivity Measurements of Branched Pentacene Oligomers,” D. Lehnherr, J. Gao, F.A. Hegmann, R.R. Tykwinski, J. Org. Chem. 2009, 74, 5017–5024.
  • 119.  “Radiaannulenes: Synthesis, electrochemistry, and solid-state structure,” M. Gholami, M.N. Chaur, M. Wilde,M.J. Ferguson, R. McDonald, L. Echegoyen, R.R. Tykwinski, ChemComm 2009, 3038–3040.
  • 118.  “Mechanistic Aspects of Alkyne Migration in Alkylidene Carbenoid Rearrangements,” P. Bichler, W. Chalifoux, S. Eisler, A.L.K Shi Shun, E.T. Chernick, R.R. Tykwinski, Org. Lett. 2009, 11, 519–522.
  • 117.  “Synthesis of tri- and tetraynes using a butadiynyl synthon,” K. Azyat, E. Jahnke, T. Rankin, R.R. Tykwinski, ChemComm 2009, 433–435.
  • 116.  “Synthesis of Extended Polyynes: Toward Carbyne,” W.A. Chalifoux, R.R. Tykwinski, Compt. Rend. Chim. 2009,12, 341–358 (part of the special issue: Modern Acetylene Chemistry).
  • 115.  “Evidence for Solution-state Bending of sp-Carbon Chains Based on IR and Raman Spectroscopy: Violation of Mutual Exclusion,” A. Lucotti, M. Tommasini, D. Fazzi, M. Del Zoppo, W.A. Chalifoux, M.J. Ferguson, G. Zerbi, R.R. Tykwinski, J. Am. Chem. Soc. 2009, 131, 4239–4244.
  • 114.  “Synthesis of Soluble Oligo- and Polymeric Pentacene-Based Materials,” D. Lehnherr, R. McDonald, R.R. Tywkinski, Tetrahedron 2008, 64, 11449–11461 (part of the Symposium in Print: Carbon-Rich Nanostructures).
  • 113.  “Synthesis of Conjugated Pentacene Dimers: Materials Toward Photoconductive Gain,” D. Lehnherr, J. Gao, F.A. Hegmann, R.R. Tykwinski, Org. Lett. 2008, 10, 4779–4782.
  • 112.  “Chiral cis-Platinum Acetylide Complexes via Diphosphine Ligand Exchange: Effect of the Ligand,” A.L. Sadowy, M.J. Ferguson, R. McDonald, R.R. Tykwinski, Organometallics 2008, 27, 6321–6325.
  • 111.  “Exploring Electronically Polarized Pentacenes, “D. Lehnherr, R. McDonald, R.R. Tykwinski, Org. Lett. 2008, 10, 4163–4166.
  • 110.  “Dynamic Properties of Solid Ammonium Cyanate,” A. Desmedt, S.J. Kitchin, K.D.M. Harris, F. Guillaume,  R. R. Tykwinski, M. Xu, M.A. Gonzalez, J. Phys. Chem. C 2008, 112, 15870–15879.
  • 109.  “Synthesis and Solid-State Structure of Perfluorophenyl End-Capped Polyynes,” J. Kendall, R. McDonald, M.J. Ferguson, R.R. Tykwinski, Org. Lett. 2008, 11, 2163–2166.
  • 108.  “Synthesis and Characterization of Cyclic Alkyl Tetraynes,” A. Spantulescu, T. Luu, Y. Zhao, R. McDonald, R.R. Tykwinski, Org. Lett. 2008, 10, 609–612.
  • 107.  “Expanded Radialenes: Modular Synthesis and Properties of Cross-Conjugated Enyne Macrocycles,” R.R. Tykwinski, M. Gholami, S. Eisler, Y. Zhao, F. Melin, L. Echegoyen, Pure Appl. Chem. 2008, 80, 621–637.
  • 106.  “One-pot Synthesis and Functionalization of Polyynes via Alkylidene Carbenoids,” T. Luu, Y. Morisaki, R.R. Tykwinski, Synthesis – PSP 2008, 1158–1162.
  • 105.  “A One-Pot Formation and Derivatization of Di- and Triynes Based on the Fritsch-Buttenberg-Wiechell Rearrangement,” T. Luu, Y. Morisaki, N. Cunningham,R.R. Tykwinski, J. Org. Chem. 2007, 72, 9622–9629.
  • 104.  “Pentacene Oligomers and Polymers: Functionalization of Pentacene to Afford Mono-, Di-, Tri- and Polymeric Materials,” D. Lehnherr, R.R. Tykwinski, Org. Lett. 2007, 9, 4583-4586.
  • 103.  “Synthesis and Characterization of a New Generation of Expanded Radialenes, Bis-radialenes, and Radiaannulenes,” M. Gholami, F. Melin, R. McDonald, M.J. Ferguson, L. Echegoyen, R.R. Tykwinski, Angew. Chem. Int. Ed. 2007, 46, 9081–9085.
  • 102.  “Donor/Acceptor Effects on Linear and Nonlinear Optical Properties of Geminal-Diethynylethenes (g-DEEs),” Y. Zhao, N. Zhou, A.D. Slepkov, S.C. Ciulei, R. McDonald, F.A. Hegmann, R.R. Tykwinski, Helv. Chim. Acta 2007, 90, 909–927.
  • 101.  “Tris(4-biphenyl)silyl endcapped polyynes,” W.A. Chalifoux, M.J. Ferguson, R.R. Tykwinski, Eur. J. Org. Chem. 2007, 1101–1106.
  • 100.  “Regioselective Trapping of Terminal Polyynes with Benzyl Azide,” T. Luu, R. McDonald, R.R. Tykwinski, Org. Lett. 2006, 8, 6035–6038.
  • 99.  “Synthesis and Stability a Homologous Series Triynol Natural Products and Their Analogues,” T. Luu, R.R. Tykwinski, J. Org. Chem. 200671, 8982–8985.
  • 98.  “Preparation and Reductive Decomposition of 2-Iodoxybenzenesulfonic Acid; X-Ray Crystal Structure of 1H-1-Hydroxy-1,2,3-benziodoxathiole 3,3-dioxide,” A.Y. Koposov, D.N. Litvinov, V.V. Zhdankin, R. McDonald, R.R. Tykwinski, Eur. J. Org. Chem. 2006, 4791–4795.
  • 97.  “Two-Photon Absorption in 2-D Conjugated Quadrupolar Chromophores,” A.D. Slepkov, F.A. Hegmann, R.R. Tykwinski, K. Kamada, K. Ohta, J.A. Marsden, E.L. Spitler, J.J. Miller, M.M. Haley, Opt. Lett. 2006, 31, 3315–3317.
  • 96.  “Chiral, Cross-conjugated iso-Polydiacetylenes,” C.A. Lewis,R.R. Tykwinski, ChemComm 2006, 3625–3627.
  • 95.  “Anisotropy of transient photoconductivity in functionalized pentacene single crystals,” O. Ostroverkhova, D.G. Cooke, F.A. Hegmann, R.R. Tykwinski, S.R. Parkin, J.E. Anthony, Appl. Phys. Lett2006 89, 192113.
  • 94.  “Oligomeric and Polymeric Systems with a Cross-conjugated p-Framework,” M. Gholami, R.R. Tykwinski, Chem. Rev. 2006, 106, 4997–5027.
  • 93.  “Polyyne Synthesis via Carbene/Carbenoid Rearrangements,” W.A. Chalifoux, R.R. Tykwinski, Chem. Rec. 2006, 6, 169–182.
  • 92.  “A One-pot Synthesis and Functionalization of Polyynes,” Y. Morisaki, T. Luu, R.R. Tykwinski, Org. Lett. 2006, 8, 689–692.
  • 91.  “Reductive Bergman-Type Cyclizations of Cross-Conjugated Enediynes to Fulvene and Fulvalene Anions: The Role of Charge Distribution,” N. Treitel, L. Eshdat, T. Sheradsky, P.M. Donovan, R.R. Tykwinski, L.T. Scott, H. Hopf, M. Rabinovitz, J. Am. Chem. Soc. 2006 128, 4703–4709.
  • 90.  Review: “Synthesis of Naturally Occurring Polyynes,” A.L.K. Shi Shun, R.R. Tykwinski, Angew. Chem. Int. Ed. 2006, 45, 1034–1057. 
  • 89.  “Porphyrinic Assemblies of Pyridine-containing Macrocycles,” K. Campbell, R. McDonald, R.R. Tykwinski, J. Porphyrins Phthalocyanine 2005, 9, 794–802.
  • 88.  “A Divergent Synthesis of Triyne Natural Products and Glycosylated Analogues Using a Carbenoid Rearrangement,” T. Luu, W. Shi, T.L. Lowary, R.R. Tykwinski, Synthesis 2005, 3167–3178 (invited feature article).
  • 87.  “Hyperpolarized 129Xe NMR Spectroscopic Investigation of Porous Organic Macrocycles,” K.J. Ooms, K. Campbell, R.R. Tykwinski, R.E. Wasylishen, J. Mater. Chem. 2005, 15, 4318–4327.
  • 86.  “Optical and transient photoconductive properties of pentacene and functionalized pentacene thin films: Dependence on film morphology,” O. Ostroverkhova, S. Shcherbyna, D.G. Cooke, R.F. Egerton, F.A. Hegmann, R.R. Tykwinski, S.R. Parkin, J.E. Anthony, J. Appl. Phys. 200598, 033701.
  • 85.  “Esters of 2-Iodoxybenzoic Acid (IBX-Esters): Hypervalent Iodine Oxidizing Reagents with a Pseudobenziodoxole Structure,” V.V. Zhdankin, A.Y. Koposov, D.N. Litvinov, M.J. Ferguson, R. McDonald, T. Luu, R.R. Tykwinski, J. Org. Chem. 2005, 70, 6484–6491.
  • 84.  “Synthesis and Characterization of Cross-conjugated Oligo(phenylene enynylene)s,” J. Cho, Y. Zhao, R.R. Tykwinski, ARKIVOC 2005, Part (iv), 142–150 (invited contribution special issue honoring Professor Nikolia Zefirov).
  • 83.  “Characterization of Porosity In Organic and Metal–Organic Macrocycles by Hyperpolarized 129Xe NMR Spectroscopy,” K. Campbell, K.J. Ooms, R.E. Wasylishen, R.R. Tykwinski, Org. Lett. 2005, 7, 3397–3400.
  • 82.  “Synthesis, Structure and Nonlinear Optical Properties of Diarylpolyynes,” T. Luu, E. Elliott,A.D. Slepkov, S. Eisler, R. McDonald, F.A. Hegmann, R.R. Tykwinski, Org. Lett. 2005, 7, 51–54.
  • 81.  “Polyynes as a Model for Carbyne: Synthesis, Physical Properties and Nonlinear Optical Response,” S. Eisler, A.D. Slepkov, E. Elliott,T. Luu, R. McDonald, F.A. Hegmann, R.R. Tykwinski, J. Am. Chem. Soc. 2005, 127, 2666–2676.
  • 80.  “Synthesis, Structure, and Nonlinear Optical Properties of Cross-Conjugated Perphenylated iso-Polydiacetylene,” Y. Zhao, A.D. Slepkov, C. Osei Akoto, R. McDonald, F.A. Hegmann, R.R. Tykwinski, Chem. Eur. J. 2005, 11, 321–329.
  • 79.  “Band-Like Transport in Pentacene and Functionalized Pentacene Thin Films Revealed by Sub-Picosecond Transient Photoconductivity Measurements,” O. Ostroverkhova, D.G. Cooke, S. Shcherbyna, R. Egerton, F.A. Hegmann, R.R. Tykwinski, J.E. Anthony, Phys. Rev. B 2005, 71, 035204. 
  • 78.  Polyamide-imide polymer thin films for integrated optics”, R.M. Bryce, H.T. Nguyen, P. Nakeeran, T. Clement, C.J. Haugen, R.R. Tykwinski, R.G. DeCorby, J.N. McMullin, Thin Solid Films 2004, 458, 233–236.
  • 77.  “A Simple, One-step Procedure for the Formation of Chiral Metallomacrocycles,” K. Campbell, C.A. Johnson II, R. McDonald, M.J. Ferguson, M.M. Haley, R.R. Tykwinski, Angew. Chem. Int. Ed. 200443, 5967–5971.
  • 76.  “Liquid Phase Deposition of Poly(ethylene terephthalate) Films,” R.M. Bryce, H.T. Nguyen, R.R. Tykwinski, R.G. DeCorby, M.R. Freeman, Y.Y. Tsui, Mat. Res. Soc. Symp. Proc. 2004, 820, O6.6.1–O6.6.6.
  • 75.  “Synthesis of a Pyridinophane with Endo-Annular Donor Sites,” K. Campbell, N.M. Tiemstra,* N.S. Prepas-Strobeck,* R. McDonald, M.J. Ferguson, R.R. Tykwinski, Synlett 2004, 182–186.
  • 74.  “The Surprising Nonlinear Optical Properties of Conjugated Polyynes,” A.D. Slepkov, S. Eisler, E. Elliott,* F.A. Hegmann, R.R. Tykwinski, J. Chem. Phys. 2004, 120, 6807–6810.
  • 73.  “Preparation and Structure of 2-Iodoxybenzoate Esters: Soluble and Stable Periodinane Oxidizing Reagents,” V.V. Zhdankin, D.N. Litvinov, A.Y. Koposov, T. Luu, M.J. Ferguson, R. McDonald, R.R. Tykwinski, Chem. Commun. 2004, 106–107.
  • 72.  “Synthesis of Naturally Occurring Acetylenes via an Alkylidene Carbenoid Rearrangement,” A.L.K. Shi Shun, R.R. Tykwinski, J. Org. Chem. 2003, 68, 6810–6813.
  •  71.  “Using Ligand Exchange Reactions to Control the Coordination Environment of Pt(II) Acetylide Complexes: Applications to Conjugated Metallacyclynes,” K. Campbell, R. McDonald, M.J. Ferguson, R.R. Tykwinski, J. Organomet. Chem. 2003, 683, 379–387.
  • 70.  Alkynyl(phenyl)iodonium Triflates as Precursors to Iridium(III) s–Acetylide Complexes,” D. Bykowski,* R. McDonald, R.R. Tykwinski, Arkivoc 2003, part iv, 21–29.
  • 69.  “IBX Amides: A New Family of Hypervalent Iodine Reagents,” V.V. Zhdankin, A.Y. Koposov, B.C. Netzel, N.V. Yashin, M.J. Ferguson, B.P. Rempel,* R.R. Tykwinski, Angew. Chem. Int. Ed. 2003 42, 2194–2196.
  • 68.  Invited Highlight: “Evolution in the Palladium–Catalyzed Cross–Coupling of sp– and sp2–hybridized Carbon,” R.R. Tykwinski, Angew. Chem. Int. Ed. 2003, 42, 1566–1568.
  • 67.  “Synthesis and Derivatization of Ethynyl a,a–Dibromomethyl Ketones: Formation of Highly Functionalized Vinyl Triflates,” T. Rankin, R.R. Tykwinski, Org. Lett. 2003, 5, 213–216.
  • 66.  “Alkyne Migration in Alkylidene Carbenoid Species: A New Method of Polyyne Synthesis,” S. Eisler, N. Chahal,* R. McDonald, R.R. Tykwinski, Chem. Eur. J. 2003, 9, 2542–2550.
  • 65.  “Ammonium Cyanate Shows N–H•••N Hydrogen Bonding, Not N–H•••O,” E.J. MacLean, K.D.M. Harris, B.M. Kariuki, S.J. Kitchin, R.R. Tykwinski, I.P. Swainson, J.D. Dunitz, J. Am. Chem. Soc. 2003, 125, 14449–14451.
  • 64.  “Synthesis of Unsymmetrical Substituted 1,3–Butadiynes and 1,3,5–Hexatriynes via Alkylidene Carbenoid Rearrangements,” A.L.K. Shi Shun, E.T. Chernick,* S. Eisler, R.R. Tykwinski, J. Org. Chem. 2003, 68, 1339–1347.
  • 63.  “Functionalized Macrocyclic Ligands: Big Building Blocks for Metal Coordination,” K. Campbell, R. McDonald, M.J. Ferguson, R.R. Tykwinski, Organometallics 2003, 22, 1353–1355.
  • 62.  “Preparation, Structure, and Unexpected Chemistry of Phosphoranyl Derived Benziodoxoles,” V.V. Zhdankin, O. Maydanovych, J. Herschbach, R. McDonald, R.R. Tykwinski, J. Am. Chem. Soc. 2002, 124, 11614–11615.
  • 61.  “Picosecond Transient Photoconductivity in Functionalized Pentacene Molecular Crystals Probed by Terahertz Pulse Spectroscopy,” F.A. Hegmann, R.R. Tykwinski, K.P.H. Lui, J.E. Bullock, J.E. Anthony, Phys. Rev. Lett. 2002, 89, 227403.
  • 60.  “Coordination Driven Self–Assembly: Solids with Bidirectional Porosity,” K. Campbell, C.J. Kuehl, M.J. Ferguson, P.J. Stang, R.R. Tykwinski, J. Am. Chem. Soc. 2002, 124, 7266–7267.
  • 59.  “Optical Properties of Cross–Conjugated iso–Polydiacetylene Oligomers as Measured UV–Vis Spectroscopy and the Optical Kerr Effect,” A.D. Slepkov, F.A. Hegmann, K. Kamada, Y. Zhao, R.R. Tykwinski, J. Opt. A, Pure Appl. Opt. 2002, 4, S207–S211.
  • 58.  “Nonlinear Optical Properties of Thienyl and Bithienyl Iodonium Salts as Measured by the Z–scan Technique,” R.R. Tykwinski, K. Kamada, D. Bykowski,* F.A. Hegmann, R.J. Hinkle J. Opt. A, Pure Appl. Op. 2002, 4, S202–S206.
  • 57.  “Ultrafast Optical Kerr Effect Measurements of Third–Order Nonlinearities in Cross–Conjugated iso–Polydiacetylene Oligomers,” A.D. Slepkov, F.A. Hegmann, Y. Zhao, R.R. Tykwinski, K. Kamada, J. Chem. Phys. 2002116, 3834–3840.
  • 56.  Invited Account: “Cross–conjugated (Oligo)enynes,” R.R. Tykwinski, Y. Zhao, Synlett 2002, 1939–1953.
  • 55.  “Study of Cross–conjugated iso–Polytriacetylenes and Related Oligoenynes,” Y. Zhao, R. McDonald, R.R. Tykwinski, J. Org. Chem. 2002, 67, 2805–2812.
  • 54.  “Functionalized Macrocyclic Ligands for Use in Supramolecular Chemistry,” K. Campbell, R. McDonald, R.R. Tykwinski, J. Org. Chem. 2002, 67, 1133–1140.
  • 53.  “Structural and Electronic Characteristics of Thienyl(aryl)iodonium Triflates,” D. Bykowski,* R. McDonald, R.J. Hinkle, R.R. Tykwinski, J. Org. Chem. 2002, 67, 2798–2804.
  • 52.  “Iterative Synthesis and Characterization of Cross–conjugated iso–Polydiacetylenes,” Y. Zhao, K. Campbell, R.R. Tykwinski J. Org. Chem. 2002, 67, 336–344.
  • 51.  “The effects of p–acceptor and p–donor substitution in cross–conjugated enynes,” Y. Zhao, S.C. Ciulei, R.R. Tykwinski, Tetrahedron Lett. 2001, 42, 7721–7723.
  • 50.  “Modification of the Fritsch–Buttenberg–Wiechell Rearrangement: A Facile Route to Unsymmetrical Butadiynes,” E.T. Chernick,* S. Eisler, R.R. Tykwinski, Tetrahedron Lett. 2001, 42, 8575–8578.
  • 49.  “Secondary Bonding–Directed Self–Assembly of Amino Acid Derived Benziodazoles: Synthesis and Structure of Novel Hypervalent Iodine Macrocycles,” V.V. Zhdankin, A.E. Koposov, J.T. Smart, R.R. Tykwinski, R. McDonald, A. Morales–Izquierdo, J. Am. Chem. Soc. 2001, 123, 4095–4096.
  • 48.  “Functionalization of Buckminsterfullerene by Hypervalent Iodine Reagents,” V.V. Zhdankin, K.J. Hanson, A.E. Koposov, E. Blomquist, R.R. Tykwinski, Mendeleev Commun. 2001, 51–52.
  • 47.  “Rigid, Cross–conjugated Macrocycles: A Cyclic Alternative to 4,4’–Bipyridines in Supramolecular Chemistry,” K. Campbell, R. McDonald, N.R. Branda, R.R. Tykwinski, Org. Lett. 2001, 3, 1045–48.

2000

  • 46.  “Migrating Alkynes in Vinylidene Carbenoids: An Unprecedented Route to Polyynes,” S. Eisler, R.R. Tykwinski, J. Am. Chem. Soc. 2000, 122, 10736–10737.
  • 45.  “Cross–conjugated Chromophores: Synthesis of iso–Polydiacetylenes with Donor/Acceptor Substitution,” S.C. Ciulei, R.R. Tykwinski, Org. Lett. 2000, 2, 3607–3610.
  • 44.  “Structural, Vibrational, and Electronic Characteristics of Enyne Macrocycles as a Function of Ring Strain,” S. Eisler, R. McDonald, G.R. Loppnow, R.R. Tykwinski, J. Am. Chem. Soc. 2000, 122, 6917–6928.
  • 43.  “Synthesis and Characterization of Cross–conjugated Polyenynes,” Y. Zhao, R. McDonald, R.R. Tykwinski, Chem. Commun. 2000, 77–78.
  • 42.  “Thienyl(phenyl)iodonium Triflates – Structural and Linear and Nonlinear Optical Behavior of Hypervalent Iodine Derivatives,” R.R. Tykwinski, K. Kamada, D. Bykowski,* K. Ohta, R. McDonald, Adv. Mater. 2000, 12, 133–137.
 

1999

  • 41.  “Expanded Radialenes: Modular Synthesis and Characterization of Cross–conjugated Enyne Macrocycles,” S. Eisler,* R.R. Tykwinski, Angew. Chem. Int. Ed. 1999, 38, 1940–1943.
  • 40.  “Cyclic Alkynes – Electronic Behavior as a Function of Ring Strain,” R.R. Tykwinski, Chem. Commun. 1999, 905–906.
  • 39.  “Iterative Synthesis and Properties of Cross–conjugated iso–Polydiacetylene Oligomers,” Y. Zhao, R.R. Tykwinski, J. Am. Chem. Soc. 1999, 121, 458–459.
 

1998

  • 38.  “New Light on an Old Story: The Solid–State Transformation of Ammonium Cyanate into Urea,” J.D. Dunitz, K.D.M. Harris, R.L. Johnston, B.M. Kariuki, E.J. MacLean, K. Psallidas, W.B. Schweizer, R.R. Tykwinski, J. Am. Chem. Soc. 1998, 120, 13274–13275.
 

Post–doctoral work

  • 37.  “Highly Functionalized Dimeric Tetraethynylethenes and Expanded Radialenes: Strong Evidence for Macrocyclic Cross–Conjugation,” M.B. Nielsen, M. Schreiber, Y.G. Baek, P. Seiler, S. Lecomte, C. Boudon, R.R. Tykwinski, J.–P. Gisselbrecht, V. Gramlich, P.J. Skinner, C. Bosshard, P. Günter, M. Gross, F. Diederich, Chem. Eur. J. 2001, 7, 3263–3280.
  • 36.  “Donor/Acceptor–Tetraethynylethenes with Nitrothienyl Substituents: Structure–Property Relationships,” R.R. Tykwinski, A. Hilger, F. Diederich, H.P. Lüthi, P. Seiler, V. Gramlich, J.–P. Gisselbrecht, C. Boudon, M. Gross, Helv. Chim. Acta 2000, 83, 1484–1508.
  • 35.  “Functionalized Two–dimensionally Conjugated Molecules for Third–order Nonlinear Optics,” U. Gubler, R. Martin, R. Spreiter, R.R. Tykwinski, C. Bosshard, P. Gunter, F. Diederich, Mol Cryst. Liq. Cryst. Sect. 199922,  323–328.
  • 34.  “Functionalized One– and Two–Dimensionally Conjugated Molecules for Third–Order Nonlinear Optics,” U. Gubler, R. Spreiter, Ch. Bosshard, P. Günter, R.R. Tykwinski, F. Diederich, Polym. Prepr. 1998, 39, 1067–1068.
  • 33.  “Porphyrin–[(E)–1,2–Diethynylethene] Scaffolding: Synthesis and Optical and Electrochemical Properties of Multinanometer–Sized Porphyrin Arrays,” J. Wytko, V. Berl, M. McLaughlin, R.R. Tykwinski, M. Schreiber, F. Diederich, C. Boudon, J.–P. Gisselbrecht, M. Gross, Helv. Chim. Acta 1998, 81, 1964–1977.
  • 32.  “Two–Dimensionally Conjugated Molecules: The Importance of Low Molecular Symmetry for Large Third–Order Nonlinear Optical Effects,” U. Gubler, R. Spreiter, Ch. Bosshard, P. Günter, R.R. Tykwinski, F. Diederich, Appl. Phys. Lett. 1998, 73, 2396–2398.
  • 31.  “Synthesis of a Highly Strained Permethylenated Cycloocta–1,5–diyne Derivative by Acid–Catalysed Thermal Rearrangement,” S. Kammermeier, R.R. Tykwinski, P. Siemsen, P. Seiler, F. Diederich, Chem. Commun. 1998, 37, 1285–1286.
  • 30.  “Structure–Property Relationships in Third–Order Nonlinear Optical Chromophores,” R.R. Tykwinski, U. Gubler, R.E. Martin, F. Diederich, Ch. Bosshard, P. Günter, J. Phys. Chem. B 1998, 102, 4451–4465.
  • 29.  “Photochemical transcisisomerisation of donor/acceptor–substituted (E)–hex–3–ene–1,5–diynes (1,2–diethynylethenes, DEEs) and 3,4–diethynylhex–3–ene–1,5–diynes (tetraethynylethenes, TEEs),” R.E. Martin, J. Bartek, F. Diederich, R.R. Tykwinski, E. Meister, A. Hilger, H.P. Lüthi, J. Chem. Soc., Perkin 2 1998, 233–241.
  • 28.  “One– and Two–Dimensionally Conjugated Tetraethynylethenes: Structure versus Second–Order Optical Properties,” R. Spreiter, Ch. Bosshard, G. Knöpfle, P. Günter, R.R. Tykwinski, M. Schreiber, F. Diederich, J. Phys. Chem. B 1998, 102, 29–32.
  • 27.  “Tetraethynylethene Molecular Scaffolding,” R.R. Tykwinski, F. Diederich, Liebigs Ann. 1997, 649–661.
  • 26.  “Electronic Characteristics of Arylated Tetraethynylethenes: A Cooperative Computational and Electrochemical Investigation,” A. Hilger, J.–P. Gisselbrecht, R.R. Tykwinski, C. Boudon, M. Schreiber, R.E. Martin, H.P. Lüthi, M. Gross, F. Diederich, J. Am. Chem. Soc. 1997, 119, 2069–2078.
  • 25.  “Tetraethynylethene Molecular Scaffolding: Nonlinear Optical, Redox, and Amphiphilic Properties of Donor Functionalized Polytriacetylene and Expanded Radialenes,” M. Schreiber, R.R. Tykwinski, F. Diederich, R. Spreiter, U. Gubler, Ch. Bosshard, I. Poberaj, P. Günter, C. Boudon, J.–P. Gisselbrecht, M. Gross, U. Jonas, H. Ringsdorf, Adv. Mater. 1997, 9, 339–343.
  • 24.  “Methanofullerene Molecular Scaffolding: Towards C60–Substituted Poly(triacetylene)s and Expanded Radialenes, Preparation of a C60–C70Hybrid Derivative, and a Novel Macrocyclization Reaction,” J.–F. Nierengarten, A. Herrmann, R.R. Tykwinski, M. Rüttimann, F. Diederich, C. Boudon, J.–P. Gisselbrecht, M. Gross, Helv. Chim. Acta 1997, 80, 293–316.
  • 23.  “Donor–Acceptor–Substituted Tetraethynylethenes: Systematic Assembly of Molecules for Use as Advanced Materials,” R.R. Tykwinski, M. Schreiber, R. Pérez Carlón, F. Diederich, V. Gramlich, Helv. Chim. Acta 1996, 79, 2249–2281.
  • 22.  “1,1,2,2–Tetraethynylethanes: Synthons for Tetraethynylethenes and Modules for Acetylenic Molecular Scaffolding,” R.R. Tykwinski, F. Diederich, V. Gramlich, P. Seiler, Helv. Chim. Acta 1996, 79, 634–645.
  • 21.  “Towards the Synthesis of Tetraethynylallene,” T. Lange, J.–D. van Loon, R.R. Tykwinski, M. Schreiber, F. Diederich, Synthesis 1996, 537–550.
  • 20.  “Structure–Property Relationships in Nonlinear Optical Tetraethynylethenes,” Ch. Bosshard, R. Spreiter, P. Günter, R.R. Tykwinski, M. Schreiber, F. Diederich, Adv. Mater. 1996, 8, 231–234.
  • 19.  “Donor–Acceptor Substituted Tetraethynylethenes,” R.R. Tykwinski, M. Schreiber, V. Gramlich, P. Seiler, F. Diederich, Adv. Mater. 1996, 8, 226–231.
 

Graduate and Undergraduate work

  • 18.  “Preparation of Conjugated Rigid–Rod, Di– and Trimetallic, s–Acetylide Complexes of Iridium(III) and Rhodium(III) via Alkynyl(phenyl)iodonium Chemistry,” R.R. Tykwinski, P.J. Stang, Organometallics 1994, 13, 3203–3208.
  • 17.  “A New Method for the Synthesis of Cyclopentenones via the Tandem Michael Addition–Carbene Insertion Reaction of b–Ketoethynyl(phenyl)iodonium Salts,” B.L. Williamson, R.R. Tykwinski, P.J. Stang, J. Am. Chem. Soc. 1994, 116, 93–98.
  • 16.  “Preparation of Bis–Cyclopentene Ring Systems Via Reaction of Bis[phenyl(iodonium)] Diyne Triflates with Soft Nucleophiles,” R.R. Tykwinski, P.J. Stang, N.E. Persky, Tetrahedron Lett. 1994, 35, 23–26.
  • 15.  “Highly Effective PQQ Inhibition by Alkynyl and Aryl Mono– and Diiodonium Salts,” P.M. Gallop, M.A. Paz, R. Flückiger, P.J. Stang, V.V. Zhdankin, R.R. Tykwinski, J. Am. Chem. Soc. 1993, 115, 11702–11704.
  • 14.  “A New Synthesis of Alkynyl Sulfones and Single Crystal X–Ray Structure of p–(Tolyl–sulfonyl)ethyne,” R.R. Tykwinski, B.L. Williamson, D.R. Fischer, P.J. Stang, A.A. Arif, J. Org. Chem. 1993, 58, 5235–5237.
  • 13.  “Functionalization of Diynes. Preparation of Bis(alkynyl) Ditosylate and Dibenzoate Esters and Bis(alkynyl) Dithiocyanates Via Alkynyl Iodonium Chemistry,” R.R. Tykwinski, P.J. Stang, Tetrahedron 1993, 49, 3043–3052.
  • 12.  “Alkylidenecarbene Insertions into Aromatic C–H Bonds in Solution,” R.R. Tykwinski, J.A. Whiteford, P.J. Stang, J. Chem. Soc., Chem. Comm. 1993, 1800–1801.
  • 11.  “(Dicyano)iodonium Triflate – Novel Iodonium Species and a Versatile Reagent for the Preparation of Iodonium Salts Via an Iodonium Transfer Reaction with Organostannanes,” P.J. Stang, V.V. Zhdankin, R.R. Tykwinski, N.S. Zefirov, Tetrahedron Lett. 1992, 33, 1419.
  • 10.  “Preparation of bis–(Heteroaryl)iodonium Salts Via an Iodonium Transfer Reaction Between Di(cyano)iodonium Triflate and Organostannanes,” P.J. Stang, R.R. Tykwinski, V.V. Zhdankin, J. Heterocyclic Chem. 1992, 29, 815–818.
  • 9.  “Single Step Preparation of Rigid–Rod, Cationic, Bimetallic, s–Diyne Complexes: L5M+CºC–(C6H4)–CºCM+L5 • 2TfO–, M = Ir, Rh,” P.J. Stang, R.R. Tykwinski, J. Am. Chem. Soc. 1992, 114, 4411–4412.
  • 8.  “Bis[(phenyl)iodonium] Diyne Triflates PhICºC–(pC6H4)n–CºCIPh 2OTf and PhICºC–(CH2)n–CºCIPh 2OTf: Preparation, Characterization, and Reaction with Triphenyl Phosphine,” P.J. Stang, R.R. Tykwinski, V.V. Zhdankin, J. Org. Chem. 1992, 57, 1861–1864.
  • 7.  “Iodosyl Trifluoromethane Sulfonate– An Efficient Reagent for the Single Step Preparation of Diaryliodonium Triflate Salts,” P.J. Stang, V.V. Zhdankin, R.R. Tykwinski, N.S. Zefirov, Tetrahedron Lett. 1991, 32, 7497–7498.
  • 6.  “(Dicyanoiodo)Benzene– A Stable Tricoordinate Iodine(III) Compound with Three Carbon Ligands,” V.V. Zhdankin, R.R. Tykwinski, B.L. Williamson, P.J. Stang, N.S. Zefirov, Tetrahedron Lett. 1991, 32, 733–734.
  • 5.  “Iodosobenzene Tetrafluoroborate, Hexafluoroantimonate, and Hexafluorophosphate: Stable Electrophilic Hypervalent Iodine Reagent Without Nucleophilic Ligands,” V.V. Zhdankin, R.R. Tykwinski, B. Berglund, M. Mullikin, R. Caple, N.S. Zefirov, A.S. Koz’min, J. Org. Chem. 1989, 54, 2609–2612.
  • 4.  “Carbon–Carbon Bond Formation in Reactions of PhIO HBF4/Silyl Enol Ether Adduct with Alkenes or Silyl Enol Ethers,” V.V. Zhdankin, M. Mullikin, R.R. Tykwinski, B. Berglund, R. Caple, N.S. Zefirov, A.S. Koz’min, J. Org. Chem. 1989, 54, 2605–2608.
  • 3.  “Ring Contraction of Cyclic Olefins with Iodine(III) Containing Reagents,” N.S. Zefirov, R. Caple, B. Berglund, V.A. Palyulin, R.R. Tykwinski, V.V. Zhdankin, A.S. Koz’min, Izv. AN SSSR Ser. Khim. 1988, 1452–1454.
  • 2.  “Iodosobenzene Tetrafluoroborate: First Example of a Stable Electrophilic Hypervalent Iodine Reagent Without Nucleophilic Ligands,” V.V. Zhdankin, R.R. Tykwinski, R. Caple, B. Berglund, A.S. Koz’min, N.S. Zefirov, Tetrahedron Lett. 1988, 29, 3717–3720.
  • 1.  “Reaction of PhIO HBF4/Silyl Enol Ether Adduct with Olefins as a General Approach to Carbon–Carbon Bond Formation in AdE Reactions Using Hypervalent Iodine Reagents,” V.V. Zhdankin, R.R. Tykwinski, R. Caple, B. Berglund, A.S. Koz’min, N.S. Zefirov, Tetrahedron Lett. 1988, 29, 3703–3704.