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; Sawamura, Sadashi

doi:10.1016/j.radphyschem.2005.08.016


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

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Title:	Solvent effects on the photochemistry of dimethyl sulfoxide-Cl complexes studied by combined pulse radiolysis and laser flash photolysis
Authors:	Sumiyoshi, Takashi Browse this author →KAKEN DB
	Minegishi, Hideki Browse this author
	Fujiyoshi, Ryoko Browse this author
	Sawamura, Sadashi Browse this author
Keywords:	DMSO–Cl complex
	Pulse radiolysis
	Photochemistry
	Intramolecular hydrogen abstraction
	Solvation effect
Issue Date:	Feb-2006
Publisher:	Elsevier
Journal Title:	Radiation Physics and Chemistry
Volume:	75
Issue:	2
Start Page:	195
End Page:	200
Publisher DOI:	10.1016/j.radphyschem.2005.08.016
Abstract:	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.
Relation:	http://www.sciencedirect.com/science/journal/0969806X
Type:	article (author version)
URI:	http://hdl.handle.net/2115/15414
Appears in Collections:	工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 住吉孝

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