ULTRAFAST CONFORMATIONAL RELAXATION OF TRIPHENYLMETHANE DYES - SPECTRAL CHARACTERIZATION

被引：46

作者：

MARTIN, MM

PLAZA, P

MEYER, YH

机构：

[1] Laboratoire de Photophysique Moléculaire du CNRS, Bât. 213, Université Paris-Sud

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1991年 / 95卷 / 23期

关键词：

D O I：

10.1021/j100176a051

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：

Absorption cross sections of the fast transient state formed during the excited-state deactivation process of the triphenylmethane dye ethyl violet are extracted from picosecond time resolved pump-probe experiments in the 350-750-nm spectral range. Absorption and stimulated emission cross sections of the dye first excited state are also obtained from these experiments and from stationary fluorescence measurements. The transient state absorption spectrum is found to be similar to that of S1 but spectrally shifted to higher energies. The transient state is described as an excited-state conformer.

引用

页码：9310 / 9314

页数：5

共 30 条

[1] THEORY OF ELECTRONIC RELAXATION IN SOLUTION IN THE ABSENCE OF AN ACTIVATION BARRIER [J].