STRUCTURE OF THE HOFMANN CLATHRATES NI(NH3)2NI(CN)4.2C6D6 AND ZN(NH3)2NI(CN)4.2C6H6

被引:25
作者
BUTTNER, HG
KEARLEY, GJ
HOWARD, CJ
FILLAUX, F
机构
[1] AUSTRALIAN NUCL SCI & TECHNOL ORG,LUCAS HTS RES LABS,MENAI,NSW 2234,AUSTRALIA
[2] LAB SPECTROCHIM INFRA ROUGE & RAMAN,CNRS,F-94320 THIAIS,FRANCE
来源
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE | 1994年 / 50卷
关键词
D O I
10.1107/S0108768193013539
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Rietveld analyses of the neutron powder diffraction patterns of Ni(NH3)2Ni(CN)4.2C6D6 and Zn(NH3)2-Ni(CN)4.2C6H6 have been performed. The space group P4/m is confirmed for Ni(NH3)2-Ni(CN)4.2C6D6 with a = 7.2196, c = 8.1007 angstrom at 25 K, a = 7.2358, c = 8.3104 angstrom at 300 K. The same space group is found for Zn(NH3)2Ni(CN)4.2C6H6 with a = 7.3294, c = 8.0722 angstrom at 25 K. The effects of quantum free-rotation of the NH3 groups is seen clearly in the temperature factors of the ammine protons.
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页码:431 / 435
页数:5
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