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

A. Gómez; E. Reguera; L. M.D. Cranswick

doi:10.1016/S0277-5387(00)00564-7

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

A. Gómez, E. Reguera, L. M.D. Cranswick

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

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).

Original language	English
Pages (from-to)	165-170
Number of pages	6
Journal	Polyhedron
Volume	20
Issue number	3-4
DOIs	https://doi.org/10.1016/S0277-5387(00)00564-7
State	Published - 2001
Externally published	Yes

Keywords

Crystal structure
Mössbauer spectra
Nitroprusside
Pentacyanide
Powder diffraction
Rietveld method

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10.1016/S0277-5387(00)00564-7

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title = "The structure of two orthorhombic nitroprussides: Cd[Fe(CN)5NO]·2H2O and Zn[Fe(CN)5NO]·2H2O",

abstract = "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).",

keywords = "Crystal structure, M{\"o}ssbauer spectra, Nitroprusside, Pentacyanide, Powder diffraction, Rietveld method",

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T1 - The structure of two orthorhombic nitroprussides

T2 - Cd[Fe(CN)5NO]·2H2O and Zn[Fe(CN)5NO]·2H2O

AU - Gómez, A.

AU - Reguera, E.

AU - Cranswick, L. M.D.

PY - 2001

Y1 - 2001

N2 - 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).

AB - 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).

KW - Crystal structure

KW - Mössbauer spectra

KW - Nitroprusside

KW - Pentacyanide

KW - Powder diffraction

KW - Rietveld method

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U2 - 10.1016/S0277-5387(00)00564-7

DO - 10.1016/S0277-5387(00)00564-7

M3 - Artículo

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VL - 20

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EP - 170

JO - Polyhedron

JF - Polyhedron

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ER -

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

Abstract

Keywords

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