Skene Group - Groupe Skene

Publications

• Barik, S., Skene, W.G.* “– Conjugated Fluorescent Azomethine Copolymers – Opto-electronic, Halochromic, and Doping Properties” Macromolecules, in press (2012).

• Bolduc, A., Dufresne, S., Skene, W.G.* “Chemical Doping of EDOT Azomethine Derivatives: Insight into the Oxidative and Hydrolytic Stability”, J. Mater. Chem., in press. (2012).

• Boluc, A., Rivier, L., Dufresne, S., Skene, W.G.* “Spectral Investigation of Conjugated Azomethines:  A Large Palette of Colors Possible with Acid and Oxidant Doping Materials Chemistry and Physics”, Mater. Chem. Phys., in press. (2012).

• Dufresne, S., Bolduc, A., Skene, W.G.^* “Diethyl 2,5-bis[(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)methylideneamino]thiophene-3,4-dicarboxylate acetone monosolvate” Acta Cryst. E67, o3138 (2011).

• Fourati, A., Maris, T., Skene, W.G.*, Bazuin, C.G.*, Prud’homme, R.E.* "Photophysical, Electrochemical and Crystallographic Investigations of the Fluorophore, 2,5-Bis(5-tert-Butyl-Benzoxazol-2-yl)thiophene", J. Phys., Chem. B, 115, 12362-12369 (2011).

• Borozenko, O., Lau, K. L., Godin, R., Mah, W., Cosa, G.,^* Skene, W.G.,^* Giasson, S.^* "Monitoring in Real-Time the Degrafting of Covalently Attached Fluorescent Polymer Brushes Grafted to Silica Substrates Effects of pH and Salt", Macromolecules, 44, 8177–8184 (2011).

• McGregor, N, Pardin, C., Skene, W.G.^* “Using Quenching Kinetics and Thermodynamics of Amino-Fluorophores As Empirical Tools for Predicting Boronic Acid Sensors Suitable for Use in Physiological Conditions”, Aust. J. Chem., 64, 1438-1446 (2011).

• Dufresne, S., Skene, W.G.^* “Diethyl 2,5-bis[(E)-1H-pyrrol-2-ylmethyleneamino]-thiophene-3,4-dicarboxylate” Acta Cryst. E67., o2302 (2011).

• Tshibaka, T., Bishop, S., Dufresne, S., Roche Ulliel, I., Lubell, W.D.^* and Skene, W.G.^* “Conjugated 4-methoxybipyrrole thiophene azomethines: synthesis, opto-electronic properties and crystallographic characterization” Chem. Eur. J. 17, 10879–10888 (2011).

• Dufresne, S., Skene, W.G”* “Optoelectronic property tailoring of conjugated heterocyclic azomethines – the effect of pyrrole, thiophene and furans”, J. Phys. Org. Chem. 10.1002/poc.1894, in press (2011). Knipping, E., Roche Ulliel, I., Dufresne, S., McGregor, N., and Skene, W.G.^* “Selective Fluorescence Turn-On of a Prefluorescent Azomethine with Zn²⁺” Tetrahedron Lett. 52, 4358-4387, (2011).

• Barik, S., Bishop, S., Skene, W.G. “Spectroelectrochemical and Electrochemical Investigation of a Highly Conjugated All-Thiophene Polyazomethine” Mater. Chem. Phys., 129, 529-533 (2011).

• Barik, S., Skene, W.G.^* “A fluorescent all-fluorene polyazomethine-towards soluble conjugated polymers exhibiting high fluorescence and electrochromic properties”, Polym. Chem.,2, 1091-1097, (2011).

• Dong, Y., Bolduc, A., McGregor, N., Skene, W.G.^* “Push-Pull Aminobithiophenes: Highly Fluorescent Stable Fluorophores” Org. Lett., 13, 1844-1847, (2011).

• Dufresne, S., Skalski, T., Skene, W.G.^* “Insights into the Effect of Ketylimine, Aldilimine, and Vinylene Group Attachment and Regio-substitution on the Fluorescence Deactivation of Fluorene” Special Issue for J.C. Scaiano, Can. J. Chem., 89, 173-180 (2011).

• Barik, S., Skene, W. G.^* “Selective Chain-End Postpolymerization Reactions and Property Tuning of a Highly Conjugated and All-Thiophene Polyazomethine.” Macromolecules, 43, 10435-10441 (2010).

• Dufresne, S., Skene, W. G.^* “Diethyl 2-amino-5-[(E)-(1-methyl-1H-pyrrol-2-yl)methylideneamino]thiophene-3,4-dicarboxylate.” Acta Crystal., E66, o3221 (2010). 

• Lego, B., Giasson, S.,* and Skene, W.G.^* “Covalently Grafted PAA Brushes to OH-Functionalized Mica Surfaces via Surface-Initiated ATRP – Preliminary Swelling Investigation by AFM” Macromol. Symposia, 89, 65-68 (2010).

• Bolduc, A., Lachapelle, V., and Skene, W.G.^* “Reversibly Cross-linked Conjugated Polymers using Snap-Together Modules –  New Dynamic Sensors for Amine Detection” Macromol. Symposia, 297, 87-93, (2010).

• Skene, W.G.^* “Polymers and Organic Chemistry”, Macromol. Symposia, 297, xi-xii (2010).

• Barik, S., Friedland, S., Skene, W.G.* “Understanding the reversible anodic behavior and fluorescence properties of fluorenylazomethines – a structure-property study” Canadian Journal of Chemistry, 89, 945-953 (2010).

• Borozenko, O., Giasson, S.,^* and Skene, W.G.^* “Direct Polymerization of Polyacrylic Acid on Mica Substrates using ATRP – A Preliminary Study” Macromol. Symposia, 297, 1-5, (2010).

• Dufresne, S., Skene, W.G.^* “Diethyl 2-amino-5-[(E)-(furan-2-ylmethylidene)amino]thiophene-3,4-dicarboxylate” Acta Crystal., E66,  o3027 (2010).

• Lego, B., Giasson, S.,* and Skene, W.G. “Covalently Grafted PAA Brushes to OH-Functionalized Mica Surfaces via Surface-Initiated ATRP – Preliminary Swelling Investigation by AFM” Macromol. Symp., 43, 4384-4393 (2010).

• Dufresne, S. Roche, I. U. Skalski, T.; Skene, W. G., “Insights into the Effect of the Ketylimine Group on the Fluorescence Deactivation of Oligofluorenes” J. Phys. Chem. C, 114, 13106-13112 (2010).

• Dufresne, S. Bolduc, A., Skene, W. G., “Towards materials with reversible oxidation and tuneable colours using heterocyclic conjugated azomethines” J. Mater. Chem., 20, 4861-4866 (2010).

• Bolduc, A. Dufresne, S. Skene, W. G., “EDOT-containing azomethine: an easily prepared electrochromically active material with tuneable colors” J. Mater. Chem., 20, 4820-4826 (2010).

• Lego, B., Skene, W. G. Giasson, S. “Swelling Study of Responsive Polyelectrolyte Brushes Grafted from Mica Substrates: Effect of pH, Salt, and Grafting Density”, Macromolecules (Washington, DC, United States), 43(9), 4384-4393 (2010).

• Bolduc, A. Dufresne, S. Hanan, G. S. Skene, W. G., “Synthesis, photophysics, and electrochemistry of thiophene-pyridine and thiophene-pyrimidine dyad comonomers” Special Issue for M. Winnik, Can J. Chem., 88, 236-246 (2010).

• Tshibaka, T., Ulliel Roche, I. Dufresne, S. Lubell, W. D. Skene, W. G., “Unsymmetric electronic push-pull bipyrroles - Synthesis, spectroelectrochemical, and photophysical investigation” J. Org. Chem., 74, 9497-9500 (2009).

• Dufresne, S. Callaghan, L. Skene, W. G., “Conjugated Fluorenes Prepared From Azomethines Connections-II: The Effect of Alternating Fluorenones and Fluorenes on the Spectroscopic and Electrochemical Properties” J. Phys Chem. B, 113, 15541-15549 (2009).

• Bourque, Alex N.; Dufresne, S. Skene, W. G., “Thiophene-Phenyl Azomethines with Varying Rotational Barriers: Model Compounds for Examining Imine Fluorescence Deactivation” J. Phys. Chem.C, 113, 19677-19685 (2009).

• Dufresne, S. Perez Guarin, S. A. Bolduc, A.  Bourque, A. N.; Skene, W. G., “Conjugated fluorene-thiophenes prepared from azomethine connections. Part I. The effect of electronic and aryl groups on the spectroscopic and electrochemical properties”    Photochem. Photobiol. Sci., 8, 796-804 (2009).

• Lego, B. Francois, M. Skene, W. G. Giasson, S. “Polymer Brush Covalently Attached to OH-Functionalized Mica Surface via Surface-Initiated ATRP: Control of Grafting Density and Polymer Chain Length” Langmuir, 25, 5313-5321 (2009).

• Dufresne, S. Skene, W. G., “Diethyl 2-[(1-methyl-1H-pyrrol-2-yl)methyleneamino]-5-(2-thienylmethyleneamino)thiophene-3,4-dicarboxylate” Acta Crystallographica, Section E: Structure Reports Online, E64, o782, o782/1-o782/11 (2008).

• Dufresne, Stephane; Skene, W. G., “Unsymmetric Pyrrole, Thiophene, and Furan-Conjugated Comonomers Prepared Using Azomethine Connections: Potential New Monomers for Alternating Homocoupled Products”, J. Org. Chem., 73, 3859-3866 (2008).

• Dufresne, S. Skene, W. G., “Diethyl 2,5-bis[(E)-2-furylmethyleneamino]thiophene-3,4-dicarboxylate”,Acta Cryst, E, E64(4), o710, o710/1-o710/13 (2008).

• Dufresne, S. Gaultois, M. ; Skene, W. G.,   “Environmentally friendly preparation of a conjugated polyazostilbene: A photophysical and electrochemical investigation”, Opt. Mater., 30, 961-967 (2008).

• Dufresne, S. Bourque, A. N.; Skene, W. G., “(E)-5-(2-Thienylmethyleneamino)quinolin-8-ol”, Acta Cryst, E64(1), o316, o316/1-o316/7 (2008).

• Lego, B. Skene, W. G.; Giasson, S. “Unprecedented Covalently Attached ATRP Initiator onto OH-Functionalized Mica Surfaces”, Langmuir, 24, 379-382 (2008).

• Dufresne, S. and Skene, W. G., “Unsymmetric Pyrrole, Thiophene, and Furan Conjugated Comonomers Prepared Using Azomethine Connections: Potential New Monomers for Alternating Homo-Coupled Products" J. Org. Chem., 73, 3859-3566 (2008).

• Lego, B., Liberelle, B. Skene, W.G., and Giasson, S. “ATRP of Poly(tert-butyl acrylate) Brushes Covalently Grafted onto -OH Functionalized Mica Surfaces” Langmuir, 24, 379-382 (2008).

• Dufresne, S., Gaultois, M., Skene, W.G. “Environmentally Friendly Preparation of a Conjugated Polyazostilbene: A Photophysical and Electrochemical Investigation”, Opt. Mater., 30, 961-967 (2008).

• Dufresne, S., Bourque, A., and Skene, W.G. “(I)-5-(2-Thienylmethyleneamino)quinolin-8-ol” Acta. Cryst., E64, o317 (2008).

• Bourgeaux, M. and Skene, W.G “Photophysics and Electrochemistry of Conjugated Oligothiophenes Prepared Using Azomethine Connections” J. Org. Chem., 72, 8882-8892 (2007).

• Guy, J., Caron, K., Dufresne, S., Michnick, S.W., Skene, W.G., Keillor, J.W. “Convergent Preparation and Photophysical Characterization of Dimaleimide Dansyl Fluorogens: Elucidation of the Maleimide Fluorescence Quenching Mechanism” J. Am. Chem. Soc., 129, 11969-11977 (2007).

• Dufresne, S., Hanan, G.H, and Skene, W.G. “Preparation, Photophysics, and Electrochemistry of Segmented Co-Monomers Consisting of Thiophene and Pyrimidine Units: New Monomers for Hybrid Co-Polymers” J. Phys. Chem. B, 111, 11407-11418 (2007).

• Dufresne, S., Gaultois, M., Skene, W.G. “Disodium 5,5'-Diamino-2,2'-Ethylenedibenzenesulfonate Tetrahydrate” Acta Cryst., E63, 11, m2714 (2007).

• Dufresne, S., Gaultois, M., Skene, W.G. “Bis(triethylammonium) 4,4'-Diamino-trans-Stilbene-2,2'-Disulfonate” Acta Cryst., E63, 10, o3926 (2007).

• Tsang, D., Bourgeaux, M., Skene. W.G. “Demystifying the Triplet State and the Quenching Mechanism of Self-Assembled Fluorenoazomethines” J. Photochem. Photobiol. A, 192, 122-129 (2007).

• Hanan, G. S, M., Ioachim, E., Medlycott, E.A., Skene, W.G. “Synthesis and properties of 6,6'-dithienyl-4,4'-bipyrimidine and its hetero- and homo-leptic Ru(II) complexes” Polyhedron, 26, 4929–4935 (2007).

• Pérez, S., Dufresne, S., Tsang, D., Sylla, A., Skene, W. G. “Photophysical, Electrochemical, and Crystallographic Investigation of Self-Assembled Conjugated Fluoreno Azomethines and Their Precursors” J. Mater. Chem., 17, 2801-2811 (2007).

• Skene, W. G. and Pérez Guarin, S. A. “Spectral Characterization of Thiophene Acylhydrazides” J. Fluores., 17, 540-546 (2007).

• Bourgeaux, M., Vomscheid, S., and Skene, W. G. “Optimized Synthesis and Simple Purification of 2,5-Diamino-Thiophene-3,4-dicarboxylic Acid Diethyl Ester” Synth. Commun., 37, 20,  3551-3558 (2007).

• Pérez Guarìn, S., Skene, W. G. “Thermal, Photophysical, and Electrochemical Characterization of a Conjugated Polyazomethine Prepared by Anodic Electropolymerization of a Thiophenoazomethine Co-Monomer” Mater. Lett., 61, 5102-5106 (2007).

• Dufresne, S., Pérez Guarin, S., Skene, W.G. “Fluoresceinophane: 2-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)-benzoic acid undecanoic acid” Acta Cryst., C63, o350-o352 (2007).

• Bourgeaux, M., and Skene, W. G. “Ethyl 2-aminothiophene-3-carboxylate” Acta Cryst., E63, o1603–o1605 (2007).

• Dufresne, S., Bourgeaux, M., Skene, W. G. “Tunable spectroscopic and electrochemical properties of conjugated push-push, push-pull and pull-pull thiopheno azomethines” J. Mater. Chem., 17, 1166-1177 (2007).

• Pérez Guarin, S., Bourgeaux, M., Dufresne, S., Skene, W. G. “Photophysical, crystallographic, and Electrochemical Characterization of Symmetric and Unsymmetric Self-Assembled Conjugated Thiopheno Azomethines” J. Org. Chem., 72, 2631-2643 (2007).

• Bourgeaux, M., Pérez Guarin, S., Skene, W. G. “Photophysical, crystallographic, and electrochemical characterization of novel conjugated thiopheno azomethines” J. Mater. Chem., 17, 972-979 (2007).

• Bourgeaux, M., Skene, W. G. “A Highly Conjugated p- and n-Type Polythiophenoazomethine: Synthesis, Spectroscopic, and Electrochemical Investigation” Macromolecules, 40, 1792-1795 (2007).

• Pérez Guarin, S. A., Tsang, D., Skene, W. G. “Spectroscopic Studies of a Fluorescent Fluoresceinophane Formed via a Practical Synthetic Route” New J. Chem., 31, 210-217 (2007).

• Dufresne, S., Bourgeaux, M., Skene, W. G. “Diethyl 2,5-bis[(E)-thiophen-2-ylmethyleneamino]thiophene-3,4-dicarboxylate” Acta Cryst., E62, o5602-o5604 (2006).

• Skene, W. G., Berl, V., Risler, H. Khoury, R., and Lehn, J.-M. “Selective product amplification of thymine photodimer by recognition-directed supramolecular assistance” Org. Biomol. Chem., 19, 3652-3663, (2006).

• Bourgeaux, M., Vomscheid, S., and Skene, W. G. “A Supramolecular 2,5-Diamino-Thiophene-3,4-dicarboxylic Acid Diethyl Ester” Acta Cryst., E62, o5529-o5531 (2006).

• Skene, W. G., Dufresne, S., Trefz, T., Simard, M. “(E)-Diethyl 2-amino-5-(2-thienylmethyleneamino)thiophene-3,4-dicarboxylate”, Acta Cryst., E62, o2382-o2384, (2006).

• Skene, W.G and Dufresne, S. “A naphthalene--thiophene--naphthalene diazomethine triad solvated with dichloromethane”, Acta Cryst., E62, o1116-o1117, (2006).

• Hansford, K. A., Pérez, S., Skene, W.G. and Lubell, W.D. “Bis(pyrrol-2-yl)arylenes from the Tandem Bidirectional Addition of Vinyl Grignard Reagent to Aryl Diesters” J. Org. Chem., 70, 7996-8000 (2005).

• Skene, W. G. and Dufresne, S. “Easy One-Pot Synthesis of Energy Transfer Cassettes” Org. Lett., 6, 2949-2952 (2004).

• Skene, W. G. and J.-M. Lehn Molecular “Dynamers I: Polyacylhydrazone Reversible Covalent Polymers-Formation And Component Exchange” Proc. Nat. Acad. Sci. USA, 101, 8270–8275 (2004).

• Skene, W. G., Couzigné, E., Lehn, J.M. “Supramolecular Control of the Template Induced Selective Photodimerization of 4-Methyl 7-O-hexylcoumarin” Chem. Eur. J., 9, 5560-5566 (2004).

• Skene, W.G. Scaiano, J.C., Georges, M.K., Kazmayer, P, and Listigovers, N. “Rate Constants For The Trapping Of Various Carbon Centered Radicals By Nitroxides:  Potential Novel Unimolecular Initiators For Living Free Radical Polymerization.” Macromolecules, 33, 5065-5072 (2000).

• Skene, W.G, Scaiano, J.C., and Yap, G. P. A. “An Improved Mimetic Compound for Styrene “Living” Free Radical Polymerization.  An Initiator Containing the “Penultimate” Unit.” Macromolecules, 33, 3536-3542 (2000).

• Skene, W.G., Connolly, T.J., and Scaiano, J.C. “Trapping of Photogenerated Group IV Radicals by TEMPO:  Potential New Organometallic Initiators For Persistent Free Radical Polymerization.” Int. J. Chem. Kin., 32, 238-244 (2000).

• Skene, W.G., Connolly, T.J., and Scaiano, J.C. “The Thermolysis and Photochemistry of Hybrid Initiators For “Living” Free Radical Polymerizations.” Tetrahedron Lett., 40, 7297-7302 (1999).

• Skene, W.G., Belt, S.T., Connolly, T.J., Hahn, P. and J.C. Scaiano. “Decomposition Kinetics, and Bond Dissociation Energies for Alkoxyamines of Relevance in ‘Living’ Free Radical Polymerization.” Macromolecules, 31, 9103-9105 (1998).

• Skene, W.G., Scaiano, J.C., and Cozens, F.L. “Fluorescence from Samarium (II) Iodide and Its Electron Transfer Quenching:  Dynamics of the Reaction of Benzyl Radicals with Sm(II).” J. Org. Chem., 61, 7918-7921 (1996).

• Skene, W.G. and Krzymien, M.E.. “Vapour Pressure of Tri-n-butyl Phosphate.” J. Chem. Eng. Data, 40, 394-397 (1995).