One-dimensional co-ordination polymers formed by crown ether metal cation bridges:: synthesis and crystal structure of nickel(II) dithiolene complexes [{Na(benzo-15-crown-5)}2 Ni(i-mnt)2]n•nCH2Cl2 and [{Na(benzo-15-crown-5)}2Ni(mnt)2]n

被引:38
作者
Long, DL [1 ]
Cui, Y [1 ]
Chen, JT [1 ]
Cheng, WD [1 ]
Huang, JS [1 ]
机构
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
基金
中国国家自然科学基金;
关键词
crown ether; nickel(II) dithiolate; crystal structure; co-ordination polymer;
D O I
10.1016/S0277-5387(98)00195-8
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reaction of NiCl2. 6H(2)O, Na-2[i-mnt] and benzo-15-crown-5 in CH3OH/CH2Cl2 at room temperature leads to [{Na(benzo-15-crown-5)}(2)Ni(mnt)(2)](n) . nCH(2)Cl(2) (1). The same reaction with Na-2[mnt] instead of Na-2[i-mnt] affords [{Na(benzo-15-crown-5)}(2)Ni(mnt)(2)](n) (2). Both complexes were isolated as crystalline products. X-ray diffraction analyses reveal that the main segments of 1 and 2 are infinite "train" structures, in which the building blocks Ni(i-mnt), or Ni(mnt), in end-to-end arrangements act as "body frames" and crown cycles standing by the body frames play the role of "cartwheel". They are joined with each other through sodium ions. (C) 1998 Elsevier Science Ltd. All rights reserved.
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页码:3969 / 3975
页数:7
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