Oxorhenium mixed-ligand complexes with the 2,6-dimercaptomethylpyridine ligand. Crystal structure of [2,6-dimercaptomethylpyridinato][p-methoxybenzenethiolato]oxorhenium(V)

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• 作者：Nock ; Berthold ; Pietzsch ; Hans-Jü ; rgen ; Tisato ; Francesco ; Maina ; Theodosia ; Leibnitz ; Peter ; et. al.
• 关键词：Oxorhenium complexes ; Mixed ligand complexes ; Crystal structures
• 刊名：Inorganica Chimica Acta
• 出版年：2000
• 出版时间：June 15, 2000
• 年：2000
• 卷：304
• 期：1
• 页码：26-32
• 全文大小：136 K

文摘

Two novel oxorhenium complexes containing the 2,6-dimercaptomethylpyridine ligand were synthesized and characterized by classical methods of analysis. The [2,6-dimercaptomethylpyridinato][p-methoxybenzenethiolato]oxorhenium complex 1, was produced by simultaneous action of equimolar quantities of 2,6-dimercaptomethylpyridine and p-methoxybenzenethiol on the precursor [(n-C₄H₉)₄N][ReOCl₄] in EtOH. As revealed by spectroscopic data as well as X-ray structure analysis, complex 1 adopts a distorted square pyramidal geometry around the metal with the SNS/S donors forming the basal plane and the oxygen occupying the apex of the pyramid. When the same tridentate ligand reacts with [(n-C₄H₉)₄N][ReOCl₃(PO)] (PO=o-diphenylphosphinophenolato) as a precursor, complex 2a, [2,6-dimercaptomethylpyridinato][o-diphenylphosphinophenolato]-oxorhenium, is obtained. The latter is a six-coordinate rhenium species to which the distorted octahedral geometry is assigned, according to the analytical findings. In this case, the SNS/P donors occupy the equatorial plane and the two oxygen atoms the apices of the distorted octahedron positioned trans to each other.