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一种一维超分子链状四核镍夹心砷钨酸盐的合成和表征(英文)
引用本文:齐秀丽,史岽瑛,罗婕,栗玉叶,陈利娟.一种一维超分子链状四核镍夹心砷钨酸盐的合成和表征(英文)[J].化学研究,2012(2):8-12,16.
作者姓名:齐秀丽  史岽瑛  罗婕  栗玉叶  陈利娟
作者单位:[1]河南大学化学化工学院,河南开封475004 [2]河南大学基础实验教学中心,河南开封475004
基金项目:Supported by the Natural Science Foundation of China(21101055); China Postdoctoral Science Foundation(20100470996); Natural Science Foundation of Henan Province(092300410119 102300410093); Foundation of Education Department of Henan Province(2009A150003 2010B150006)
摘    要:利用水热方法合成了一种一维超分子链状四核镍夹心的砷钨酸盐enH2]Ni(en)2]4Ni4(H2O)2(α-AsW9O34)2].10H2O(1)(en=ethylene diamine);借助元素分析、红外光谱和单晶X射线衍射对其进行了表征。结果表明,化合物1的分子结构单元由1个二支撑的四核镍夹心砷钨酸盐多阴离子{Ni(en)2]2Ni4(H2O)2(α-AsW9O34)2]}6-,2个游离的Ni(en)2]2+配离子,1个游离的双质子化enH2]2+阳离子和10个结晶水分子组成。有趣的是,相邻的四核镍夹心砷钨酸盐多阴离子{Ni(en)2]2Ni4(H2O)2(α-AsW9O34)2]}6-借助Ni…O弱相互作用构筑一维超分子链状结构Ni…O距离分布在0.253 2~0.283 7nm之间]。

关 键 词:多金属氧酸盐  夹心结构  超分子链  砷钨酸盐

Synthesis and characterization of one-dimensional supramolecular chain-like tetra-nickel sandwiched arsenotungstate
QI Xiu-li,SHI Dong-ying,LUO Jie,LI Yu-ye,CHEN Li-juan.Synthesis and characterization of one-dimensional supramolecular chain-like tetra-nickel sandwiched arsenotungstate[J].Chemical Research,2012(2):8-12,16.
Authors:QI Xiu-li  SHI Dong-ying  LUO Jie  LI Yu-ye  CHEN Li-juan
Institution:1.College of Chemistry and Chemical Engineering,Henan University,Kaifeng475004,Henan,China;2.Basic Experiment Teaching Center,Henan University,Kaifeng475004,Henan,China)
Abstract:One dimensional(1-D) supramolecular chain-like tetra-Ni sandwiched arsenotungstate enH 2 ] Ni(en) 2 ] 4 Ni 4(H 2 O) 2(α-AsW 9 O 34) 2 ].10H 2 O(1)(en=ethylene diamine) was synthesized using a hydrothermal route.As-synthesized product was characterized by means of elemental analysis,infrared spectrometry and single-crystal X-ray diffraction.It has been found that the molecular structural unit of 1 consists of a two-supporting tetra-Ni sandwiched polyoxoanion { Ni(en) 2 ] 2 Ni 4(H 2 O) 2(α-AsW 9 O 34) 2 ]} 6,two discrete Ni(en) 2 ] 2+ cations,one free diprotonated enH 2 ] 2+ cation and ten lattice water molecules.Interestingly,adjacent tetra-Ni sandwiched polyoxoanions { Ni(en) 2 ] 2 Ni 4(H 2 O) 2(α-AsW 9 O 34) 2 ]} 6are connected with each other viathe Ni … O weak interactions Ni … O distances : 0.253 2-0.283 7nm ],giving rise to 1-D supramolecular chain-like architecture.
Keywords:polyoxometalate  sandwich structure  supramolecular chain  arsenotungstate
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