کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1323364 1499930 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and characterization of ruthenium complexes with 1-aryl-2-mercaptoimidazole ligands
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Synthesis and characterization of ruthenium complexes with 1-aryl-2-mercaptoimidazole ligands
چکیده انگلیسی

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.

Figure optionsDownload as PowerPoint slideHighlights
► 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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Organometallic Chemistry - Volume 705, 15 May 2012, Pages 34–38
نویسندگان
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