共 23 条
Photochemistry of CS2/Cl complexes -: combined pulse radiolysis-laser flash photolysis studies
被引:4
|作者:
Sumiyoshi, T
[1
]
Nakayama, M
[1
]
Fujiyoshi, R
[1
]
Sawamura, S
[1
]
机构:
[1] Hokkaido Univ, Grad Sch Engn, Div Quantum Sci & Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan
关键词:
CS2/Cl complex;
pulse radiolysis;
laser flash photolysis;
intermolecular hydrogen abstraction;
D O I:
10.1016/j.radphyschem.2005.06.002
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:
Complexes of chlorine atoms and carbon disulfide (CS2) were produced by pulse radiolysis of CS2 in halocarbons and photochemical reactions were studied by laser flash photolysis. Excitation of CS2/Cl complexes resulted in rapid and permanent photobleaching. The photobleachling of CS2/Cl complexes is due to intermolecular chlorine atom abstraction in CCl4 with a quantum yield of 0.04, while that ascribed to hydrogen atom abstraction in 1,2-dichloroethane has a quantum yield of 0.21. The effects of additives are discussed based on the bond dissociation energy. (C) 2005 Elsevier Ltd. All rights reserved.
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页码:20 / 25
页数:6
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