From the {Cu(μ₂-S)N}₄ butterfly architecture to the {Cu(μ₃-S)N}₁₂ double wheel

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• 作者：M.S. Ameerunisha Begum ; Oliver Seewald ; Ulrich Flö ; rke ; Gerald Henkel
• 关键词：Copper complexes ; N/S-Ligands ; Coordination chemistry ; Polynuclear complexes
• 刊名：Inorganica Chimica Acta
• 出版年：2008
• 期刊代码：40_00201693
• 类别：ch
• 出版时间：20 May 2008
• 卷：361
• 期：7
• 页码：1868-1874
• 文件大小：1111 K

摘要

Copper(I) complexes with {Cu(μ₂-S)N}₄ and {Cu(μ₃-S)N}₁₂ core portions of butterfly-shaped or double wheel architectures have been isolated in the reaction of Cu(I) with the Schiff base ligand C₆H₄(CHNC₆H₄S)₂, “iso-abt”, under different conditions. containing the tetranuclear electroneutral complex is formed by the reaction of CuI in acetonitrilic solution and recrystallization from DMF, whereas containing dodecanuclear wheels is accessible starting from CuBF₄. Complexes 2 and 4 represent the first examples of cyclic complexes with the same overall stoichiometry but different ring sizes. The ligand induces two different coordination environments around copper(I) by switching between μ₂- and μ₃-sulfur bridging modes.