Picosecond dynamics of the S-2 excited state of azulene and its van der Waals complexes with Ar and Xe

被引：13

作者：

AbouZied, OK ^{[1
]}

Demmer, DRM ^{[1
]}

Wallace, SC ^{[1
]}

Steer, RP ^{[1
]}

机构：

[1] UNIV SASKATCHEWAN, DEPT CHEM, SASKATOON, SK S7N 5C9, CANADA

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 266卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/S0009-2614(96)01507-2

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 dynamics of the second excited singlet (S-2) states of jet-cooled azulene (Az) and its van der Waals complexes with one and two atoms of Ar and Xe have been investigated. Quantum interference effects due to restricted intramolecular vibrational redistribution in azulene have been reinterpreted. Lifetime shortening in the 1:1 and 1:2 complexes with Xe is attributed to an enhancement of the rate of S-2-T-1 intersystem crossing by the external heavy atom effect. Excitation of the complexes to states with E(vib) > E(b) produces energy-resolved fluorescence decays which exhibit sequential intramolecular vibrational redistribution-vibrational predissociation.

引用

页码：75 / 85

页数：11

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