Synthesis, characterization of novel half-sandwich iridium and rhodium complexes containing pyridine-based organochalcogen ligands |
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| Authors: | Wei-Guo Jia Yuan-Biao Huang Guo-Xin Jin |
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| Institution: | aShanghai Key Laboratory of Molecular Catalysis and Innovative Material, Department of Chemistry, Advanced Materials Laboratory, Fudan University, 200433 Shanghai, PR China |
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| Abstract: | A series of neutral pyridine-based organochalcogen ligands, 2,6-bis(1-methylimidazole-2-thione)pyridine (Bmtp), 2,6-bis(1-isopropylimidazole-2-thione)pyridine (Bptp), and 2,6-bis(1-tert-butylimidazole-2-thione)pyridine (Bbtp) have been synthesized and characterized. Reactions of Cp*M(μ-Cl)Cl]2 (Cp* = η5-pentamethylcyclopentadienyl, M = Ir, Rh) with three pyridine-based organochalcogen ligands result in the formation of the complexes Cp*M(L)Cl2 (M = Ir, L = Bmtp, 1a·Cl2; M = Rh, L = Bmtp, 1b·Cl2; M = Ir, L = Bptp, 2a·Cl2; M = Rh, L = Bptp, 2b·Cl2; M = Ir, L = Bbtp, 3a·Cl2; M = Rh, L = Bbtp, 3b·Cl2), respectively. All compounds have been characterized by elemental analysis, NMR and IR spectra. The molecular structures of Bbtp, 1a·Cl2, 1b·Cl2, 2b·Cl2 and 3b·Cl2 have been determined by X-ray crystallography. |
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| Keywords: | Iridium Rhodium Half-sandwich complexes Molecular structures |
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