Synthesis, structure and reactivity of [Mn₂(CO)₆(渭-MBT)₂] (MBT = 2-mercaptobenzothiazolato): A versatile precursor for mono- and polynuclear compounds

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• 作者：Shishir Ghosh^a ; M.S. Alam Mia^a ; Esmatara Begum^a ; G.M. Golzar Hossain^b ; Shariff E. Kabir^a ; ^{skabir_ju@yahoo.com}
• 关键词：2-Mercaptobenzothiazole ; Manganese ; Mixed-metal cluster ; Diphosphines ; Diamines ; X-ray structures
• 刊名：Inorganica Chimica Acta
• 出版年：2012
• 期刊代码：40_00201693
• 类别：ch
• 出版时间：1 April, 2012
• 卷：384
• 期：Complete
• 页码：76-82
• 文件大小：603 K

摘要

Reaction between Mn₂(CO)₁₀ and 2-mercaptobenzothiazole (MBTH) in the presence of Me₃NO at 25 掳C gives the dimanganese complex [Mn₂(CO)₆(渭-MBT)₂] (1). Complex 1 reacts with diphosphines, e.g., 1,2-bis(diphenylphosphino)ethane (dppe) and 1,3-bis(diphenylphosphino)propane (dppp) in refluxing cyclohexane to afford cis-[Mn(CO)₂(魏²-MBT)(魏²-dppe)] (2) and cis-[Mn(CO)₂(魏²-MBT)(魏²-dppp)] (2), respectively, whereas similar reactions with diamines, e.g., 2,2鈥?bipyridine (bipy), 1,10-phenanthroline (phen) and ethylenediamine (en) at 25 掳C furnish fac-[Mn(CO)₃(魏¹-MBT)(魏²-bipy)] (4), fac-[Mn(CO)₃(魏¹-MBT)(魏²-phen)] (5) and fac-[Mn(CO)₃(魏¹-MBT)(魏²-en)] (6), respectively. Treatment of 1 with [Os₃(CO)₁₀(NCMe)₂] at 80 掳C affords the mixed Mn-Os cluster [MnOs₃(CO)₁₃(渭₃-MBT)] (7) which possesses a butterfly skeleton of four metal atoms. All the new complexes have been characterized by spectroscopic data together with single crystal X-ray diffraction studies for 1, 2, 4 and 7.