Two New Cubane-Type Tetranuclear Compounds of Copper(II), Nickel(II) Derived from Reduced Schiff Base Ligand: Syntheses, Structures and Magnetic Properties

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• 作者：Jiming Wang ; Chao Feng ; Cheng Min Ge ; Shuhua Zhang ; Hong Hai
• 关键词：Tetranuclear cluster ; Magnetic properties ; Jahn–Teller distortion
• 刊名：Journal of Cluster Science
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：27
• 期：6
• 页码：2001-2011
• 全文大小：1,293 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Catalysis
  Inorganic Chemistry
  Physical Chemistry
  
• 出版者：Springer Netherlands
• ISSN：1572-8862
• 卷排序：27

文摘

Two tetranuclear complexes, [M(H₃L)]₄·X (1, M = Cu, X = 4,4′-dpdo; 2, M = Ni, X = DMF, H₅L = 2-[(3,5-dibromo-2-hydroxybenzyl) amino]-2-(hydroxymethyl)propane-1,3-diol, 4,4′-dpdo is 4,4′-bipyridine-N,N′-dioxide, DMF = N,N′-dimethyl formamide), have been synthesized and characterized by elemental analysis, IR and X-ray single-crystal diffraction. Compound 1 features a centrosymmetric tetranuclear copper cluster which further constructed a 1D chain through a tetra-acceptor hydrogen bonds of 4,4′-dpdo molecule. Compound 2 having a P2₁/n space group also exhibits a tetranuclear nickel cluster with a cubane topology in which the central Ni(II) ion and oxygen atoms from H₃L2− occupy the alternate vertices of the cube. Magnetic properties of 1 and 2 in the 2–300 K have also been discussed. The tetranuclear cubanes cores display dominant ferromagnetic interactions.