The structure of two orthorhombic nitroprussides:: Cd[Fe(CN)5NO]•2H2O and Zn[Fe(CN)5NO]•2H2O

被引：25

作者：

Gómez, A

Reguera, E

Cranswick, LMD

机构：

[1] Ctr Appl Sci & Adv Technol, IPN, Mexico City 11500, DF, Mexico

[2] SERC, Daresbury Lab, Synchrotron Radiat Dept, CCP14, Warrington WA4 4AD, Cheshire, England

[3] Univ La Habana, IMRE, Lab Anal Estructural, La Habana 10400, Cuba

来源：

POLYHEDRON | 2001年 / 20卷 / 3-4期

关键词：

nitroprusside; Rietveld method; crystal structure; powder diffraction; Mossbauer spectra; pentacyanide;

D O I：

10.1016/S0277-5387(00)00564-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

When zinc and cadmium nitroprussides, obtained as powders or single-crystals samples, are aged in air they lose crystallization water and change their crystalline structure. In the stable form these two complexes are orthorhombic dihydrates with four molecules in the unit cell. In the aging process the crystals become brittle producing a polycrystalline material. The crystalline structure of these two complexes (orthorhombic dihydrates) was refined from their XRD powder patterns using the Rietveld method. As the starting model in the refining process the reported orthorhombic structure of copper nitroprusside (dihydrate) was used. The main changes in the dehydration process associated with the structural transformation take place in the coordination sphere of the outer cation (Cd or Zn). (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：165 / 170

页数：6

共 16 条

[1] Crystal and anion structure, TGA, DTA, and infrared and Raman spectra of manganese(II) nitroprusside dihydrate, Mn[Fe(CN)(5)NO]center dot 2H(2)O [J].