Fluorescence and topological gap of conjugated phenylene polymers


Autoria(s): Soos, ZG; Etemad, S; Galvao, DS; Ramasesha, S
Data(s)

03/07/1992

Resumo

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 ?-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.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/36131/1/Fluorescence_and.pdf

Soos, ZG and Etemad, S and Galvao, DS and Ramasesha, S (1992) Fluorescence and topological gap of conjugated phenylene polymers. In: Chemical Physics Letters, 194 (4-6). pp. 341-346.

Publicador

Elsevier science

Relação

http://dx.doi.org/10.1016/0009-2614(92)86061-L

http://eprints.iisc.ernet.in/36131/

Palavras-Chave #Solid State & Structural Chemistry Unit
Tipo

Journal Article

PeerReviewed