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Syntheses and Photophysical Properties of N ‐Pyridylimidazol‐2‐ylidene Tetracyanoruthenates(II) and Photochromic Studies of Their Dithienylethene‐Containing Derivatives
Author(s) -
Duan Gongping,
Yam Vivian WingWah
Publication year - 2010
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201000880
Subject(s) - photochromism , carbene , chemistry , photochemistry , electrochemistry , ligand (biochemistry) , chelation , absorption (acoustics) , metal , visible spectrum , polymer chemistry , materials science , organic chemistry , electrode , catalysis , biochemistry , receptor , optoelectronics , composite material
A series of tetracyanoruthenate(II) with chelating pyridyl N ‐heterocyclic carbene ligands (NHC‐py) was synthesized and characterized. Their photophysical and electrochemical properties as well as the photochromic behavior of their dithienylethene‐containing complexes were studied. Photocyclization was found to take place upon irradiation into the metal‐to‐ligand charge transfer (MLCT) absorption bands of these complexes, and evidence is provided to support the triplet‐sensitizing reaction pathway.