期刊
INORGANIC CHEMISTRY
卷 49, 期 4, 页码 1439-1448出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic901660m
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资金
- MIUR
- INSTM
- CINECA
A family of new functional bis-cyclometalated thiophene-based cationic iridium complexes have been prepared and fully characterized. The introduction of formyl groups into the thienyl-based cyclometalating ligand (thpy-CHO) allows one to perform further functionalizability and to confer to the whole species potentially interesting perspectives as functional materials. The X-ray crystal structures of three complexes, namely, [Ir(thpy)(2)bpy]PF6, [Ir(thpy-CHO)(2)bpy]PF6, and [Ir(thpy-CHO)(2)phen]PF6, are reported. A rich reduction voltammetric pattern of the complexes is outlined, and the effect of the substituents on the cyclic voltammetric behavior is fully elucidated. Finally, the electrochemiluminescence spectra of all of the species have been obtained in acetonitrile by annihilation of the one-electron-oxidized and -reduced forms, showing very similar features with respect to the luminescence (as both the shape and energy of the emission bands).
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