ULTRAVIOLET-ABSORPTION SPECTRA AND KINETICS OF CH3S AND CH2SH RADICALS

被引：33

作者：

ANASTASI, C ^{[1
]}

BROOMFIELD, M ^{[1
]}

NIELSEN, OJ ^{[1
]}

PAGSBERG, P ^{[1
]}

机构：

[1] RISO NATL LAB, CHEM REACTIV GRP, DK-4000 ROSKILDE, DENMARK

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 182卷 / 06期

关键词：

D O I：

10.1016/0009-2614(91)90139-Z

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 ultraviolet absorption spectra of CH3S and CH2SH radicals have been measured between 215 and 380 nm using the pulse-radiolysis/kinetic-absorption method. One absorption band between 250 and 300 nm and one around 215 nm have been tentatively assigned to the CH2SH and CH3S radicals, respectively. This spectrum has been used to measure the self-reaction rates of these radicals. Rate constants of 4 x 10(-11) and 7 x 10(-11) cm3 molecule-1 s-1 have been measured at 298 K for CH3S and CH2SH recombination, respectively. The possible reaction pathways are discussed.

引用

页码：643 / 648

页数：6

共 25 条

[21] LASER-INDUCED FLUORESCENCE OF CH3S AND CD3S RADICALS [J].

SUZUKI, M ;

INOUE, G ;

AKIMOTO, H .

JOURNAL OF CHEMICAL PHYSICS, 1984, 81 (12) :5405-5412

[22] KINETICS AND MECHANISM OF THE REACTIONS OF CH3S WITH O2 AND NO2 AT 298-K [J].

TYNDALL, GS ;

RAVISHANKARA, AR .

JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (06) :2426-2435

[23] ABSOLUTE RATE CONSTANTS FOR THE GAS-PHASE REACTIONS OF THE NO3 RADICAL WITH CH3SH, CH3SCH3, CH3SSCH3, H2S, SO2, AND CH3OCH3 OVER THE TEMPERATURE-RANGE 280-K-350-K [J].

WALLINGTON, TJ ;

ATKINSON, R ;

WINER, AM ;

PITTS, JN .

JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (21) :5393-5396

[24] THE SYNTHESIS OF ALKYLTHIODISULFIDES, CYCLOALKYLTHIODISULFIDES AND CYCLOALKYLDISULFIDES THROUGH THE OXIDATION OF MERCAPTOTHIOETHERS, BIS-MERCAPTOTHIOETHERS AND BIS-MERCAPTOALKANES WITH IODINE AND TRIETHYLAMINE [J].

WEISSFLOG, E .

PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS, 1983, 15 (01) :27-32

[25] PHOTOOXIDATION OF DIMETHYL SULFIDE AND DIMETHYL DISULFIDE .1. MECHANISM DEVELOPMENT [J].

YIN, FD ;

GROSJEAN, D ;

SEINFELD, JH .

JOURNAL OF ATMOSPHERIC CHEMISTRY, 1990, 11 (04) :309-364

← 1 2 3 →