PICOSECOND TRANSIENT ABSORPTION OF AQUEOUS TRYPTOPHAN

被引：18

作者：

KANDORI, H

BORKMAN, RF

YOSHIHARA, K

机构：

[1] INST MOLEC SCI, OKAZAKI, AICHI 444, JAPAN

[2] GEORGIA INST TECHNOL, SCH CHEM & BIOCHEM, ATLANTA, GA 30332 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 38期

关键词：

D O I：

10.1021/j100140a022

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 primary photophysical and photochemical processes of aqueous tryptophan (Trp) are studied by picosecond transient absorption spectroscopy. Upon excitation of Trp at 292 nm, transient absorption appears within 1.5 ps in the whole visible region and remains for at least 400 ps. Under the present excitation conditions, the transient absorptions due to solvated electrons and the excited triplet state of Trp are relatively weaker, and the observed transient spectrum is predominantly due to excited singlet-state absorption S(n) <-- S1.

引用

页码：9664 / 9667

页数：4

共 28 条

[1] ABSORPTION-SPECTRUM OF THE SOLVATED ELECTRON .2. NUMERICAL-CALCULATIONS OF THE PROFILES OF THE ELECTRON IN WATER AND METHANOL AT 300-K [J].