DIRECT MEASUREMENT OF PROTON DISSOCIATION IN THE EXCITED-STATE OF PROTONATED 1-AMINOPYRENE WITH PICOSECOND PULSES

被引：48

作者：

SHIZUKA, H ^{[1
]}

TSUTSUMI, K ^{[1
]}

TAKEUCHI, H ^{[1
]}

TANAKA, I ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,DEPT CHEM,MEGURO KU,TOKYO 152,JAPAN

来源：

CHEMICAL PHYSICS LETTERS | 1979年 / 62卷 / 02期

关键词：

D O I：

10.1016/0009-2614(79)80208-0

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：

Direct measurement of proton dissociation in the excited singlet state of protonated I-aminopyrene in a mixture of H2O (or D2O) and acetonitrile (1:1) has been carried out by means of picosecond time-resolved spectroscopy. The proton dissociation retes k11 and kD+1 at about 300 K were determined tobe 3.7 (±0.6) * 109 s-1, respectively. These rates are in very good agreement with those obtained by nanosecond time-resolved spectroscopy with fluorometry. The excited singlet state ;K*2 value of l-aminopyrene was also determined by dynamic analyses. © 1979.

引用

页码：408 / 412

页数：5