Effect of viscosity and rotor size on the dynamics of twisted intramolecular charge transfer

John D. Simon, Shyh-Gang Su

研究成果: Article同行評審

28 引文 斯高帕斯(Scopus)

摘要

Picosecond emission spectroscopy is used to examine the kinetics of twisted intramolecular charge transfer in a series of symmetric bis((N,N-dialkylamino)phenyl) sulfones, DRAPS (R = methyl, propyl, and butyl), in alcohol solutions. Within a given solvent, the dynamics of charge transfer are not dependent on changes in the size of the rotating group; however, for a single molecule in the series of n-alcohols, the rate of charge transfer correlates with the inverse of the solvent viscosity. These seemingly contradictory observations are reconciled by taking into account polarity effects on the reaction barrier, thereby revealing that the rate of reaction for a single molecule in the series of alcohols is independent of changes in solvent viscosity.

原文English
頁(從 - 到)3656-3660
頁數5
期刊Journal of Physical Chemistry
94
發行號9
DOIs
出版狀態Published - 1990 一月 1

All Science Journal Classification (ASJC) codes

  • 工程 (全部)
  • 物理與理論化學

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