Syntheses and crystal structures of two tetranuclear copper(II) complexes with Schiff bases |
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| Authors: | Na?Zhang Email author" target="_blank">Zhong-Lu?YouEmail author |
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| Institution: | (1) Department of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, People’s Republic of China; |
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| Abstract: | Two similar tetranuclear copper(II) complexes with the formulae Cu4(L1)2(μ1,1-N3)4(μ2-CH3COO)2] and Cu4(L2)2(μ1,1-N3)2(μ-Br)2Br2(CH3OH)2], where L1 and L2 are the deprotonated forms of 2-(2-ethylaminoethylimino)methyl]-5-methoxyphenol and 5-methoxy-2-(2-piperidin-1-ylethylimino)methyl]phenol,
respectively, have been synthesized and characterized by spectroscopic methods and single-crystal X-ray diffraction. Both
complexes are centrosymmetric tetranuclear copper(II) compounds. The bridging groups in Cu4(L1)2(μ1,1-N3)4(μ2-CH3COO)2] are μ1,1-azide ligands and μ2-acetate ligands, and those in Cu4(L2)2(μ1,1-N3)2(μ-Br)2Br2(CH3OH)2] are μ1,1-azide ligands and μ-bromide ligands. Each Cu atom in the complexes is in a square pyramidal geometry. |
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