含氮多羧酸钴(Ⅱ)-钕(Ⅲ)异核配合物合成和晶体结构
Journal of Guangxi Normal University(Natural Science Edition)(2012)
Abstract
用扩散法合成了配合物[NdCo(NTA)2(H2O)11/3(CH3OH)1/3]·(CH3OH)2/3·10/3H2O(1),晶体属三斜晶系,空间群为Pi,晶胞参数为a=0.9636(2)nm,b=1.0449(2)nm,c=1.3393(2)nm,α=107.04°,β=98.25(2)°,Υ=103.98°,V=1.2172(4)nm3,Z=2,配合物具有三维网络结构.配合物[Nd2Co3(EDTA)3(H2O)11·12H2O](2)用水热法获得,属单斜晶系,空间群为C2,晶胞参数为α=1.5925(3)nm,b=1.4655(2)nm,c=1.4741(2)nm,β=116.407(2)°,V=3.0813(8)nm3,Z=2.每个Nd3+通过羧基桥联3个Co2+,而每个Co2+与两个相邻Nd3+连接构成12员环从而形成二维杂金属层,相邻层之间通过水的氢键作用连接形成三维结构.
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Key words
ethylenediminetetraaceate,nitrilotriacetate,heteropolynuclear,cobalt(Ⅱ),neodymium(Ⅲ)
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