Soos, Z. G. ; Etemad, S. ; Galvão, D. S. ; Ramasesha, S. (1992) Fluorescence and topological gap of conjugated phenylene polymers Chemical Physics Letters, 194 (4-6). pp. 341-346. ISSN 0009-2614
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/000926...
Related URL: http://dx.doi.org/10.1016/0009-2614(92)86061-L
Abstract
We propose that strong fluorescence in conjugated polymers requires a dipole-allowed state to be the lowest singlet. Hückel theory for para-conjugated phenyl rings yields an extended, topologically one-dimensional π-system with increased alternation, states localized on each ring, and charge-transfer excitations between them. Exact Pariser-Parr-Pople results and molecular spectra for oligomers support a topological contribution and a lowest dipole-allowed singlet in phenylene polymers.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 39476 |
| Deposited On: | 13 May 2011 07:29 |
| Last Modified: | 13 May 2011 07:29 |
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