Photophysics of IrCl62- complex in aqueous solutions studied by femtosecond pump-probe spectroscopy

被引:12
作者
Litke, Anton V. [1 ,2 ]
Pozdnyakov, Ivan P. [1 ,2 ]
Glebov, Evgeni M. [1 ,2 ]
Plyusnin, Victor F. [1 ,2 ]
Tkachenko, Nikolai V. [3 ]
Lemmetyinen, Helge [3 ]
机构
[1] Russian Acad Sci, Inst Chem Kinet & Combust, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
[3] Tampere Univ Technol, Inst Mat Chem, FIN-33101 Tampere, Finland
关键词
ELECTRON-TRANSFER SPECTRA; COORDINATION-COMPOUNDS; PHOTOCHEMISTRY; HEXACHLOROIRIDATE(IV); PHOTOREDUCTION; DYNAMICS; STATE;
D O I
10.1016/j.cplett.2009.07.020
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
Ultrafast pump-probe spectroscopy (lambda(pump) = 420 nm) was applied to study the primary photochemical processes for IrCl62- complex in aqueous solutions. The excitation to LMCT T-2(2u) state was followed by formation of an intermediate absorption completely decaying with two characteristic times of 0.5 and 18 ps. Complete recovery of the ground state is consistent with the absence of photochemical activity of visible LMCT bands of IrCl62-. Possible interpretations of the observed two times are presented. (C) 2009 Elsevier B. V. All rights reserved.
引用
收藏
页码:304 / 308
页数:5
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