Structural changes in insoluble metal nitroprussides on ageing

The processes which take place in freshly precipitated insoluble metal nitroprussides, M[Fe(CN) 5NO]· xH 2O (M = Mn 2+, Fe +, Co 2+, Ni 2+, Cu 2+, Zn 2+ and Cd 2+), their crystalline phases and their aged products have been studied by X-ray diffraction, Mossbauer, IR and thermogravimetric techniques...

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Bibliographic Details
Published in:Polyhedron 1996-01, Vol.15 (18), p.3139-3145
Main Authors: Reguera, E., Dago, A., Gómez, A., Bertrán, J.F.
Format: Article
Language:English
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Summary:The processes which take place in freshly precipitated insoluble metal nitroprussides, M[Fe(CN) 5NO]· xH 2O (M = Mn 2+, Fe +, Co 2+, Ni 2+, Cu 2+, Zn 2+ and Cd 2+), their crystalline phases and their aged products have been studied by X-ray diffraction, Mossbauer, IR and thermogravimetric techniques. The processes entail a loss of zeolitic water. The stable phases are orthorhombic ( Pnma) dihydrates (Mn 2+, Fe 2+, Cu 2+, Cd 2+ and Zn 2+) and face-centred cubic ( Fm 3 m ) tetrahydrates for Co 2+ and Ni 2+.
ISSN:0277-5387
DOI:10.1016/0277-5387(95)00582-X