SOLVENT-TUNED INTRAMOLECULAR CHARGE-RECOMBINATION RATES IN A CONJUGATED DONOR-ACCEPTOR MOLECULE

被引：54

作者：

KHUNDKAR, LR ^{[1
]}

STIEGMAN, AE ^{[1
]}

PERRY, JW ^{[1
]}

机构：

[1] CALTECH, JET PROP LAB, PASADENA, CA 91109 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1990年 / 94卷 / 04期

关键词：

D O I：

10.1021/j100367a007

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The nonradiative charge-recombination rates from the charge-transfer state of a new conjugated donor-acceptor molecule (p-cyano-p′-methylthiodiphenylacetylene) can be tuned over almost an order of magnitude by varying the polarity of the solvent. These measurements of intramolecular recombination show a turnover of rates as a function of emission energy, consistent with the "normal" and "inverted" behavior of Marcus theory. Steady-state spectra and time-resolved measurements allow us to quantitatively compare thermal and optical electron-transfer rates as a function of driving force and demonstrate their correspondence. © 1990 American Chemical Society.

引用

页码：1224 / 1226

页数：3

共 29 条

[1] SOLVENT REORGANIZATION IN OPTICAL AND THERMAL ELECTRON-TRANSFER PROCESSES - SOLVATOCHROMISM AND INTRAMOLECULAR ELECTRON-TRANSFER BARRIERS IN SPHEROIDAL MOLECULES [J].