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Synthesis and Properties of two CuI Complexes Involving Tetrathiafulvalene-Fused Phenanthroline Ligand

Zhi-Gang Niu, Xue-You Wang, Hao-Hua Chen, Xun Wang, Sun Wei, Dong-Min Wu, Guang-Ying Chen, Jie Qin, Gao-Nan Li


Two CuI complexes based on the π-conjugated tetrathiafulvalene-annulated phenanthroline ligands (TTF-Phen, L1 and L2), [CuI(Xantphos)(L1)]BF4 (1, Xantphos = 9,9-dimethyl-4,5-bis(diphenylphosphino)xanthene) and [CuI(Binap)(L2)]BF4 (2, Binap = 2,2’-bis(diphenylphosphino)-1,1’-binaphthyl), have been synthesized. They have been fully characterized, and their photophysical and electrochemical properties are reported together with those of L1 and L2 for comparison. Both CuI complexes show metal-to-ligand charge transfer (MLCT) absorption bands, whereas the 3MLCT luminescence is strongly quenched.


Copper(I) complexes; Tetrathiafulvalene ligands; Photoluminescence; Cyclic voltammetry

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