广西师范大学学报（自然科学版） ›› 2012, Vol. 30 ›› Issue (2): 106-110.

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含氮多羧酸钴(Ⅱ)-钕(Ⅲ)异核配合物合成和晶体结构

宋丽华1,2, 金一3, 梁福沛2   

  1. 1.国土资源部沈阳地质矿产研究所,辽宁沈阳110032;
    2.广西师范大学化学化工学院,广西桂林541004;
    3.中国刑事警察学院,辽宁沈阳110035
  • 收稿日期:2012-05-02 出版日期:2012-06-20 发布日期:2018-12-03
  • 通讯作者: 宋丽华(1978—),女,辽宁兴城人,国土资源部沈阳地质矿产研究所高级工程师。E-mail:slhslhslh2001@163.com
  • 基金资助:
    国家自然科学基金资助项目(20461001)

Syntheses and Structures of Polynuclear Complexes with Aminopolycarboxylic Acid-bridge

SONG Li-hua1,2, JIN Yi3, LIANG Fu-pei2   

  1. 1.Shenyang Institute of Geology and Mineral Resources,The Ministry of Land and Resources,Shengyang Liaoning 110032,China;
    2.College of Chemistry and Chemical Engineering,Guangxi Normal University, Guilin Guangxi 541004,China;
    3.China Criminal Police College,Shenyang Liaoning 110035,China
  • Received:2012-05-02 Online:2012-06-20 Published:2018-12-03

摘要： 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P1,晶胞参数为a=0.963 6(2) nm,b=1.044 9(2) nm,c=1.339 3(2) nm,α=107.04°,β=98.25(2)°,γ=103.98°,V=1.217 2(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a=1.592 5(3) nm,b=1.465 5(2) nm,c=1.474 1(2) nm,β=116.407(2)°,V=3.081 3(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。

关键词: 钴(Ⅱ), 钕(Ⅲ), 异核配合物, 氨三乙酸, 乙二胺四乙酸

Abstract: The complex[NdCo(NTA)2(H2O)11/3(CH3OH)1/3]·(CH3OH)2/3·10/3H2O (1)was obtained by the diffusion between two kinds of reactions.It crystallizes in triclinic space group P1 with cell parameters a=0.963 6(2) nm,b=1.044 9(2) nm,c=1.339 3(2) nm,α=107.04°,β=98.25(2)°,γ=103.98°,V=1.2172(4) nm3,Z=2.The complex exhibits a 3-D network structure.The complex [Nd2Co3(EDTA)3(H2O)11·12H2O] (2) crystallizes in monoclinic space group C2 with cell parameters a=1.592 5(3) nm,b=1.465 5(2) nm,c=1.474 1(2) nm,β=116.407(2)°,V=3.081 3(8) nm3,Z=2.Each Nd3+ is connected to three Co2+ through three carboxylate bridges,while eachCo2+ has two Nd3+ neighbors.In this way,a twelve-member cycle is produced and connected to each other to form a two-dimension network sheet.These sheets are further linked into a three-dimensional network by the water molecules between the layers through rich hydrogen bonds.

Key words: cobalt(Ⅱ), neodymium(Ⅲ), heteropolynuclear, nitrilotriacetate, ethylenediminetetraaceate

中图分类号: 

  • O614.33
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