title: Syntheses and photophysical properties of N-pyridylimidazol-2-ylidene tetracyanoruthenates(II) and photochromic studies of their dithienylethene-containing derivatives.
abstract: 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.
authors.affiliation: Centre for Carbon-Rich Molecular and Nanoscale Metal-Based Materials Research, Department of Chemistry, HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China.
authors.forename: Gongping
authors.initials: G
authors.lastname: Duan
authors.forename: Vivian Wing-Wah
authors.initials: VW
authors.lastname: Yam