[Ni{(CH3)2SO}6]I4, a redetermination and reinterpretation

被引:21
作者
Long, DL [1 ]
Hu, HM [1 ]
Chen, JT [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
关键词
D O I
10.1107/S0108270198013055
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The structure of the title polyiodide compound, hexakis(dimethyl sulfoxide-O)nickel(II) tetraiodide, [Ni(C2H6OS)(6)]I-4, has been redetermined. The compound comprises discrete [Ni{(CH3)(2)SO}(6)](2+) cations and I-4(2-) anions. The polyhedron around the six-coordinate Ni atom is a distorted octahedron with the metal atom on a (3) over bar position and six equivalent Ni-O distances of 2.077 (2) Angstrom. The linear uncoordinated centrosymmetric I-4(2-) polyiodide ion represents a rare example of a tetraiodide ion. It exhibits a central I-I bond of 2.848(1) Angstrom and two terminal I-I bonds of 3.342 (2) Angstrom.
引用
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页码:339 / 341
页数:3
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