Solvation dynamics in ethanol

Shyh Gang Su, John D. Simon

研究成果: Article同行評審

81 引文 斯高帕斯(Scopus)

摘要

Solvation dynamics in ethanol were studied by measuring the time-resolved Stokes shift of the emission from the twisted intramolecular charge-transfer state of bis(4-(methylamino)phenyl) sulfone (DMAPS). The time scale of the spectral relaxation, τS, was determined from 0 to -60°C. Near 0°C, τS is comparable to the longitudinal relaxation time of the solvent, τL, in agreement with predictions based on dielectric continuum models. However, with decreasing temperature, τS falls between τL and the Debye rotational relaxation time, τD. The deviations of the solvation times from that predicted by a continuum model for the solvent are discussed in terms of molecular details of the solvent which are not included in the simple continuum descriptions.

原文English
頁(從 - 到)2693-2696
頁數4
期刊Journal of Physical Chemistry
91
發行號11
DOIs
出版狀態Published - 1987 一月 1

All Science Journal Classification (ASJC) codes

  • 工程 (全部)
  • 物理與理論化學

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