Primary photophysical and photochemical processes for hexachloroosmate(IV) in aqueous solution

被引：0
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作者：
Evgeni M. Glebov
Ivan P. Pozdnyakov
Svetlana G. Matveeva
Alexei A. Melnikov
Sergey V. Chekalin
Marina V. Rogozina
Vladislav V. Yudanov
Vjacheslav P. Grivin
Victor F. Plyusnin
机构：
[1] Voevodsky Institute of Chemical Kinetics and Combustion,Institute of Spectroscopy
[2] Novosibirsk State University,undefined
[3] Russian Academy of Sciences,undefined
[4] Vologograd State University,undefined
来源：
Photochemical & Photobiological Sciences | 2017年 / 16卷
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摘要：
The photoaquation of the OsIVCl62- complex was studied by means of stationary photolysis, nanosecond laser flash photolysis and ultrafast kinetic spectroscopy. The OsIVCl5(OH)2- complex was found to be the only reaction product. The quantum yield of photoaquation is rather low and wavelength-dependent. No impact of redox processes on photoaquation was revealed. The total characteristic lifetime of the process is about 80 ps. Three intermediates were recorded in the femto- and picosecond time domains and assigned to different Os(iv) species. The nature of intermediates and possible mechanisms of photoaquation are discussed.
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页码：220 / 227
页数：7
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