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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Syntheses, structures, and properties of mono- and tetranuclear nickel(II) complexes derived from a tridentate Schiff base ligand
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Syntheses, structures, and properties of mono- and tetranuclear nickel(II) complexes derived from a tridentate Schiff base ligand

机译:源自三齿席夫碱配体的单核和四核镍(II)配合物的合成,结构和性质

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摘要

Three new nickel(II) complexes constructed with N-(2-hydroxybenzyl)-beta-alanine (H2L), namely [NiL(phen)H2O] center dot HO (1) (phen = 1.10-phenanthroline), [Ni4L4(H2O)(4)] center dot 5H(2)O (2) and K[Ni4L4(NCS)(H2O)(5)] center dot 5.42H(2)O (3) have been synthesized and characterized by single-crystal X-ray diffraction analysis. Complex I exhibits a discrete structure, and the structures are bound together through hydrogen bonding to a one-dimensional chain in ladder-like fashion. Complexes 2 and 3 contain similar [Ni-4(mu(2)-O)(6)] cores with "zig-zig" arrangement. In complex 3, the tetranuclear nickel units [Ni4L4(H2O)(4)] and [Ni4L4(NCS)(H2O)] are alternately bridged by potassium atoms to a one-dimensional chain. The neighboring chains are further linked up by {K2O2} units to a two-dimensional layer structure. Moreover, the IR, XRD, TGA and the temperature-dependent magnetic susceptibility for 2 and 3 have also been studied.
机译:用N-(2-羟基苄基)-β-丙氨酸(H2L)构造的三个新的镍(II)配合物,即[NiL(phen)H2O]中心点HO(1)(phen = 1.10-菲咯啉),[Ni4L4(H2O) )(4)]中心点5H(2)O(2)和K [Ni4L4(NCS)(H2O)(5)]中心点5.42H(2)O(3)已合成并通过单晶X表征射线衍射分析。配合物I显示出离散的结构,并且这些结构通过氢键结合成梯形的一维链而结合在一起。配合物2和3包含类似的[Ni-4(mu(2)-O)(6)]核,呈“ zig-zig”排列。在络合物3中,四核镍单元[Ni4L4(H2O)(4)]和[Ni4L4(NCS)(H2O)]被钾原子交替桥连至一维链。相邻的链进一步通过{K2O2}单元链接到二维层结构。此外,还研究了2和3的IR,XRD,TGA和温度相关的磁化率。

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