Excited-state dynamics of highly strained 1,2,3-tri-tert-butylanthraquinone undergoing valence isomerization

被引：5

作者：

Nakayama, T ^{[1
]}

Amijima, Y ^{[1
]}

Ushida, K ^{[1
]}

Hamanoue, K ^{[1
]}

机构：

[1] KYOTO INST TECHNOL,DEPT CHEM,SAKYO KU,KYOTO 606,JAPAN

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 258卷 / 5-6期

关键词：

D O I：

10.1016/0009-2614(96)00690-2

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：

Sub-picosecond laser photolysis of the title compound (TBAQ) reveals that a broad absorption band (at 450-750 nm) due to the lowest excited singlet state ((1)TBAQ') decreases with a very short lifetime of 1.7 ps and then an absorption band due to the lowest excited tripler state ((3)TBAQ*) remains as the residual absorption. The fast decay channel of (1)TBAQ* is probably ascribed to the valence isomerization to yield a hemi-Dewar type isomer reported by Miki et al., considering the distorted molecular structure of TBAQ estimated by molecular mechanics calculations.

引用

页码：663 / 668

页数：6

共 42 条

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