کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1323364 | 1499930 | 2012 | 5 صفحه PDF | دانلود رایگان |

Reactions of the vinyl ruthenium starting material Ru(CHCHPh)Cl(CO)(PPh3)2 (1) with 1-aryl-2-mercaptoimidazole (HLa, aryl = 4-chloro-phenyl; HLb, aryl = 4-methyl-phenyl; HLc, aryl = 4-nitro-phenyl) in the presence of sodium methoxide in dichloromethane and methanol afforded [Ru(CHCHPh)(κ2-L)(CO)(PPh3)2] (2a–2c). Treatment of 1 with HL in THF gave [RuCl(κ2-L)(CO)(PPh3)2] (3a–3c) contaminant with formation of styrene as byproduct. Interactions of 1 with HLa in dichloromethane led to isolation of a novel dinuclear ruthenium complex [(CO)(PPh3)(CHNCH2Ph)Ru(μ-Cl)2(μ-S)RuCl(CO)(PPh3)] (4a) via N–H bond addition to styryl ligand. Complexes 2a–2c, 3a–3c, and 4a were characterized by microanalyses, IR, and (1H, 13C, 31P) NMR spectroscopies. The molecular structures of 3a–3c and 4a have been determined by single-crystal X-ray diffraction.
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► A series of ruthenium complexes with 1-arylimidazole-2-thiolate ligands were synthesized.
► The synthesized complexes were characterized by different spectroscopic techniques and X-ray crystallography.
► Displacement of styryl took place easily under mild conditions.
► Specific addition of the N–H bond into the styryl ligand occurs.
Journal: Journal of Organometallic Chemistry - Volume 705, 15 May 2012, Pages 34–38