Salen型双肟镍(Ⅱ)簇合物的合成与晶体结构(英文)

Synthesis and Crystal Structure of Nickel(Ⅱ) Cluster with Salen-Type Bisoxime Ligand

A nickel(Ⅱ) cluster,{[Ni(L)H2O]2(OAc)2Ni}.2EtOH,has been synthesized by the means of the complexation of nickel(Ⅱ) acetate tetrahydrate with a new Salen-type bisoxime ligand (H2L,4,4'-dimethoxy-2,2'-[ethylenedioxybis (nitrilo-methylidyne)]diphenol). The crystal structure shows that the hexacoodinated terminal nickel(Ⅱ) ions lie in the N2O2 coordination sphere of Salen-type bisoxime ligands,quadruple μ-phenoxo oxygen atoms from two [NiL] chelates coordinated to the central nickel(Ⅱ) ion,and the two acetate anions coordinated to three nickel(Ⅱ) ions through Ni-O-C-O-Ni bridges. Thus,all the three nickel atoms of the cluster have distorted octahedral geometries. CCDC:736762.

A nickel（Ⅱ） cluster, {[Ni（L）H20]2（OAc）2Ni}·2EtOH, has been synthesized by the means of the complexation of nickel（Ⅱ） acetate tetrahydrate with a new Salen-type bisoxime ligand （H2L, 4,4＇-dimethoxy-2,2＇-[ethylenedioxybis （nitrilo-methylidyne）]diphenol）. The crystal structure shows that the hexacoodinated terminal nickel（1） ions lie in the N2O2 coordination sphere of Salen-type bisoxime ligands, quadruple μ-phenoxo oxygen atoms from two [NiL] chelates coordinated to the central nickel（1） ion, and the two acetate anions coordinated to three nickel（Ⅱ） ions through Ni-O- C-O-Ni bridges. Thus, all the three nickel atoms of the cluster have distorted oetahedral geometries. CCDC： 736762.