Excited-state dynamics of (SO2)m clusters

被引：10

作者：

Dermota, TE ^{[1
]}

Hydutsky, AP ^{[1
]}

Bianco, NJ ^{[1
]}

Castleman, AW ^{[1
]}

机构：

[1] Penn State Univ, Dept Chem, University Pk, PA 16802 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2005年 / 109卷 / 37期

关键词：

D O I：

10.1021/jp052529u

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：

A study of the excited-state dynamics Of (SO2)(m) clusters following excitation by ultrafast laser pulses in the range of 4.5 eV (coupled (1)A(2), B-1(1) states) and 9 eV (F band) is presented. The findings for the coupled (1)A(2) and B-1(1) states are in good agreement with published computational work(5) on the properties of these coupled states. A mechanism involving charge transfer to solvent is put forward as the source of the excited-state dynamics that follow the excitation of the SO2 F band within (SO2)(m+1) clusters with m > 1. The proposed CTTS mechanism is supported by calculations of the energetics of the process and the observed trends in the excited-state lifetimes that correlate very well with the calculated energies.

引用

页码：8259 / 8267

页数：9

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