Solvent effects on the photochemistry of dimethyl sulfoxide-Cl complexes studied by combined pulse radiolysis and laser flash photolysis

Sumiyoshi, Takashi; Minegishi, Hideki; Fujiyoshi, Ryoko et al.

Radiation Physics and Chemistry, 2006, 75(2), 195-200

Permalink : https://hdl.handle.net/2115/15414

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アクセス権
open access
URI
https://hdl.handle.net/2115/15414
タイトル
Solvent effects on the photochemistry of dimethyl sulfoxide-Cl complexes studied by combined pulse radiolysis and laser flash photolysis
著者
Sumiyoshi, Takashi ; Minegishi, Hideki ; Fujiyoshi, Ryoko ; Sawamura, Sadashi
e-Rad_Researcher
90002211
著者名
Sumiyoshi, Takashi
著者名
Minegishi, Hideki
著者名
Fujiyoshi, Ryoko
著者名
Sawamura, Sadashi
言語
英語
キーワード
DMSO–Cl complex
Pulse radiolysis
Photochemistry
Intramolecular hydrogen abstraction
Solvation effect
発行日
2006-02
出版者
Elsevier
収録物名
Radiation Physics and Chemistry
巻(号)
75(2)
ページ
195-200
抄録
Photolysis of complexes of dimethyl sulfoxide (DMSO) with chlorine atoms results in rapid and permanent photobleaching which may be due to intramolecular hydrogen abstraction. The effects of solvent polarity were examined in a wide variety of DMSO–carbon tetrachloride mixed solvents. The quantum yields of photobleaching decreased from 0.27 to 0.08 as the solvent polarity increased, while significant changes were observed in the low DMSO concentration range (<0.2 mol dm−3). This cannot be accounted for by simple solvent polarity effects. The effects of polar and nonpolar additives were also examined and it is concluded that the specific solvation effect of DMSO was the main cause of the significant change in quantum yields in the low concentration range of DMSO.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
0969-806X
関連情報
URI
http://www.sciencedirect.com/science/journal/0969806X
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1016/j.radphyschem.2005.08.016