Absorption spectra of radical ions of polymers having carbazolyl chromophores

Hiroshi Masuhara*, Kazuhito Yamamoto, Naoto Tamai, Kazushige Inoue, Noboru Mataga

*此作品的通信作者

研究成果: Article同行評審

36 引文 斯高帕斯(Scopus)

摘要

The fluorescent states of poly(N-vinylcarbazole) with different degrees of polymerization, poly[2-(N-carbazolyl)ethyl vinyl ether], and polyurethanes having a 1,2-trans-dicarbazolylcyclobutane group were quenched in DMF by an electron donor or acceptor. Absorption spectra of the polymer ions produced were measured by using a N2 gas laser photolysis system. The poly(N-vinylcarbazole) cation showed a spectrum which could be reproduced by a superposition of the bands of the sandwich dimer cation, the second dimer cation with a partial overlap between two carbazolyl groups, and the third dimer cation with another geometry. On the other hand, other polymers gave almost the same spectrum as that of the third dimer cation. The spectrum of polymer anions was identical with that of the reference monomer anion. These results indicate that the produced charge in the polymer is not delocalized over chromophores but trapped in some sites.

原文English
頁(從 - 到)3971-3974
頁數4
期刊Journal of physical chemistry
88
發行號18
DOIs
出版狀態Published - 1 1月 1984

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