ORGN 318 |
| Seth C. Rasmussen, Daniel J. Sattler, Kari A. Mitchell, and John Maxwell. Department of Chemistry, North Dakota State University, Fargo, ND 58105 |
| In order for materials chemists to develop improved electronic materials, it is critically important to understand the various structure-function relationships involved. In polymeric products, this can only be accomplished by fully understanding the same relationships in the monomeric precursors. Unfortunately, there is often little reported electronic and spectroscopic data for the monomeric species making it difficult to predict general relationships. For example, while poly(isothianaphthene) has been extensively studied, the systematic photophysical characterization of the monomeric isothianaphthene is quite limited. In an attempt to better understand the structure-function relationships in polythieno[3,4-b]pyrazine systems, we report herein the photophysical study of thieno[3,4-b]pyrazine and its 2,3-difunctionalized analogues. Full characterization of the room temperature UV-vis and fluorescence spectra, including solvent and pH dependence, are presented and compared to the related species isothianaphthene and quinoxaline. In particular, the nature of the lowest energy transition is thoroughly discussed. |
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Physical Organic, Combinatorial, Materials, Molecular Recognition
8:00 PM-10:00 PM, Tuesday, March 30, 2004 Anaheim Convention Center -- Hall A, Poster
Division of Organic Chemistry |