Indexed by:期刊论文

Date of Publication:2012-03-07

Journal:RSC ADVANCES

Included Journals:SCIE、EI

Volume:2

Issue:5

Page Number:1712-1728

ISSN No.:2046-2069

Abstract:Transition metal complexes of Ru(II), Pt(II) and Ir(III) with strong absorption of visible light and long-lived T-1 excited states were summarized. A design rationale of these complexes, i.e. direct metalation of organic chromophore, was proposed. Alternatively an organic chromophore can be dangled on the peripheral moiety of the coordination center. In both cases the long-lived intraligand triplet excited state ((IL)-I-3) can be accessed. However, the (IL)-I-3 excited state is usually emissive for the former case and it is very often non-emissive for the latter case. Two methods used for study of the long-lived triplet excited state, i.e. the time-resolved transient difference absorption spectroscopy and the spin density analysis, are briefly introduced. Preliminary applications of the complexes in luminescent O-2 sensing and triplet-triplet annihilation (TTA) upconversions were discussed.