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Viscosity Dependency of Intramolecular Excimer Formation in Modelsystems for Poly (N-Vinylcarbazole)

✍ Scribed by J. Vandendriessche; M. van Der Auwerser; F. C. De Schryvar

Publisher: Wiley (John Wiley & Sons)
Year: 2010
Weight: 564 KB
Volume: 94
Category: Article
ISSN: 0037-9646
DOI: 10.1002/bscb.19850941121

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✦ Synopsis

The viscosity dependency of the rate constant of intramolecular excimer formation in 1,3-di(N-carbazolyl)-propane and meso-2,4-di(N-carbazolyl)pentane in a series of alkane solvents is reported. The results are fitted to the models of Gegiou, Kramers, and Skinner and Wolynes. The models of Krmers, and of Skinner and Wolynes fail to describe the experimental data of 1,3-di(N-carbazoly1)-propane, the model of Gegiou, which is based on the froe volume required for rotation processos, describes accurately these data. The data of meso-2,4-di(N-carbazolyl)pent.ne, in the measured viscosity domain, are nearly equally adequate described by the three models.

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