Issue 7, 2011
From the journal:

Photochemical & Photobiological Sciences

Photochromic processes in di(mercaptoquinolinato)Ni(ii) complex and perfluordiphenyl disulfide solutions

D. Yu. Vorobyev,a   A. V. Kolomeets,a   Yu. V. Ivanov,a   G. A. Bogdanchikov,a   V. P. Grivin,a   V. F. Plyusnin,*a   S. V. Larionovb  and  H. Lemmetyinenc  

* Corresponding authors

a Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk, Russian Federation
E-mail: plyusnin@kinetics.nsc.ru
Fax: +7 383 3307350
Tel: +7 383 3332385

b Institute of Inorganic Chemistry, SB RAS, Novosibirsk, Russia

c Institute of Materials Chemistry, Tampere University of Technology, Tampere, Finland

Abstract

Laser flash photolysis was used to study the nature and reactions of intermediates for a novel photochromic system consisting of perfluorodiphenyl disulfide (F5C6SSC6F5 = (SBF)2) and a flat di(mercaptoquinolinato)Ni(II) (Ni(SC6H3NC3H3)2 = Ni(SR)2) complex in benzene solutions. Under UV-radiation disulfide dissociates into two sulfur-containing radicals (F5C6S˙ = ˙SBF) that vanish in recombination. In the presence of the Ni(SR)2 complex recombination competes with radical coordination yielding the radical (SBF˙)Ni(SR)2 complex. This complex has an absorption band in the visible region and disappears in the second-order reaction when radical-complex recombines into dimer ((RS)2Ni(SBF)2Ni(SR)2). Subsequent dimer dissociation into initial disulfide and two Ni(SR)2 complexes completes the photochromic cycle.

Graphical abstract: Photochromic processes in di(mercaptoquinolinato)Ni(ii) complex and perfluordiphenyl disulfide solutions

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Article information

DOI
https://doi.org/10.1039/C1PP05061C
Article type
Paper
Submitted
07 Feb 2011
Accepted
22 Mar 2011
First published
14 Apr 2011

Photochem. Photobiol. Sci., 2011,10, 1196-1202

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Photochromic processes in di(mercaptoquinolinato)Ni(II) complex and perfluordiphenyl disulfide solutions

D. Yu. Vorobyev, A. V. Kolomeets, Yu. V. Ivanov, G. A. Bogdanchikov, V. P. Grivin, V. F. Plyusnin, S. V. Larionov and H. Lemmetyinen, Photochem. Photobiol. Sci., 2011, 10, 1196 DOI: 10.1039/C1PP05061C

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