198215-27-9Relevant academic research and scientific papers
Preparation of a series of dinuclear Ir(III) and Ir(II) complexes containing bridging thiolate ligands
Nishio, Masayuki,Matsuzaka, Hiroyuki,Mizobe, Yasushi,Hidai, Masanobu
, p. 119 - 123 (1997)
Reactions of [Cp*IrCl(μ-Cl)2IrCp*Cl] (Cp* = η5-C5Me5) with RSH in CH2Cl2 at room temperature afforded two types of thiolatebridged dinuclear Ir(III) complexes, [Cp*IrCl(μ-SR)2IrCp*Cl] (2; R = Pr1, Cy, CH2Ph; Cy = cyclohexyl) or [Cp*Ir(μ-SEt)3IrCp*]Cl, depending upon the nature of the substituent R. Reduction of 2 (R = Pr1 (2a), Cy) with excess Na-Hg in THF resulted in the formation of the dinuclear Ir(II) complexes [Cp*Ir(μ-SR)2IrCp*] (3). X-ray diffraction studies were undertaken for 2a and 3b (R = Cy) to determine their detailed structures. 2a: C26H44Cl2S2Ir2, space group C2/c, a = 21.255(8), b = 8.606(6), c = 17.788(6) A?, β = 118.39(2)°, Z = 4. 3b: C32H52S2Ir2, space group P2/n, a = 8.912(6), b = 11.224(6), c = 16.496(6) A?, β = 97.78(4)°, Z=2. Complexes 3 reacted with CF3COOH to give the cationic Ir(III) complexes having a bridging hydride ligand [Cp*Ir(μ-H) (μ-SR)2IrCp*] [OCOCF3].
