Comparative studies of triplet states of thymine components by acetone sensitization and direct excitation in aqueous solution at room temperature

被引：18

作者：

Song, QH ^{[1
]}

Lin, WZ ^{[1
]}

Yao, SD ^{[1
]}

Lin, NY ^{[1
]}

机构：

[1] Acad Sinica, Shanghai Inst Nucl Res, Lab Radiat Chem, Shanghai 201800, Peoples R China

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1998年 / 114卷 / 03期

基金：

中国国家自然科学基金;

关键词：

thymine; thymidine; TMP; triplet states; laser flash photolysis; direct excitation; acetone sensitization;

D O I：

10.1016/S1010-6030(98)00219-6

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 [物理化学]; 081704 [应用化学];

摘要：

The transient absorption spectra and the kinetic parameters of decay of the triplet states of thymine and its nucleoside, nucleotide, were obtained from acetone sensitization and direct excitation in aqueous solution at room temperature. The kinetic parameters from two methods are equivalent, thus time-resolved acetone sensitization method was verified by the laser photolysis experiment. Furthermore, advantages of acetone sensitization method were clarified by the characteristics of triplet acetone and enhanced yields of triplet states of thymine components. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：181 / 184

页数：4

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