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Organoplatinum(II) Complexes with Chromophore–Acceptor Dyad Studied by Ultrafast Time‐Resolved Absorption Spectroscopy
Author(s) -
Lai SiuWai,
Chen Yong,
Kwok WaiMing,
Zhao XiJuan,
To WaiPong,
Fu WenFu,
Che ChiMing
Publication year - 2010
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.200900304
Subject(s) - chromophore , photochemistry , electron transfer , femtosecond , absorption (acoustics) , ultrafast laser spectroscopy , chemistry , spectroscopy , absorption spectroscopy , reaction rate constant , viologen , ultrashort pulse , materials science , kinetics , optics , laser , physics , quantum mechanics , composite material
Femtosecond time‐resolved absorption revealed the formation of charged‐separated [ClPt III {C ∧ N ∧ N(PhMV +⋅ )}] species (left) with a forward rate constant of about 10 12 s −1 , which is more rapid than that of the back electron‐transfer process ( k −1 =1.6×10 9 s −1 ). Similar slower back ET reaction than forward light‐induced ET reaction of [Pt(MV‐bpy)(CCPh) 2 ](PF 6 ) 2 (right) has been observed. MV=methyl viologen.