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∗ = η 5-pentamethylcyclopentadienyl, M = Ir, Rh) with three pyridine-based organochalcogen ligands result in the formation of the complexes Cp∗M(L)Cl 2 (M = Ir, L = Bmtp, 1a· Cl 2 ; M = Rh, L = Bmtp, 1b· Cl 2 ; M = Ir, L = Bptp, 2a· Cl 2 ; M = Rh, L = Bptp, 2b· Cl 2 ; M = Ir, L = Bbtp, 3a· Cl 2 ; M = Rh, L = Bbtp, 3b· Cl 2 ), respectively. All compounds have been characterized by elemental analysis, NMR and IR spectra. The molecular structures of Bbtp, 1a· Cl 2 , 1b· Cl 2 , 2b· Cl 2 and 3b· Cl 2 have been determined by X-ray crystallography.
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