Effect of Ring Fusion on the Electronic Absorption and Emission Properties of Oligothiophenes
- 15 November 2003
- journal article
- research article
- Published by American Chemical Society (ACS) in The Journal of Organic Chemistry
- Vol. 68 (25), 9813-9815
- https://doi.org/10.1021/jo035241e
Abstract
A series of fused-ring oligothiophenes were synthesized by a combination of Stille and oxidative coupling reactions. Compounds with the same number of double bonds, but varying in extent of planarization, display a similar longest wavelength absorption maximum in solution. However, the introduction of sulfur linkages into these oligothiophenes leads to a blue shift of the maximum emission wavelength and a correspondingly smaller Stokes shift.Keywords
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