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Synthesis and powder data for [Mn(H2O)]0.25(VO)0.75PO4·2H2O

Published online by Cambridge University Press:  10 January 2013

Ludvík Beneš ,
Klára Richtrova ,
Jiři Votinský ,
Jaroslava Kalousová  and
Vítěslav Zima
Ludvík Beneš*
Affiliation:
Joint Laboratory of Solid State Chemistry of Academy of Science of Czech Republic andInstitute of Chemical Technology, 532 10 Pardubice, Czech Republic
Klára Richtrova
Affiliation:
Department of General and Inorganic Chemistry, Institute of Chemical Technology, 532 10 Pardubice, Czech Republic
Jiři Votinský
Affiliation:
Department of General and Inorganic Chemistry, Institute of Chemical Technology, 532 10 Pardubice, Czech Republic
Jaroslava Kalousová
Affiliation:
Department of General and Inorganic Chemistry, Institute of Chemical Technology, 532 10 Pardubice, Czech Republic
Vítěslav Zima
Affiliation:
Joint Laboratory of Solid State Chemistry of Academy of Science of Czech Republic andInstitute of Chemical Technology, 532 10 Pardubice, Czech Republic
*
a)Author to whom correspondence should be addressed.
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Abstract

A new compound [Mn(H2O)]0.25(VO)0.75PO4·2H2O was prepared by the reaction of V2O5 with the boiling aqueous solution of H3PO4 and KMnO4. The reaction product is a yellow-brown powder, stable in air. The tetragonal unit-cell parameters (298 K) are a = 6.2034(2)Å, c = 13.814(1)Å, V = 531.59Å3, Z = 4, Mr = 194.94, Dx = 2.493 g/cm3, Dexp = 2.52 g/cm3. X-ray (CoKα radiation) powder diffraction data (35 lines) are reported. The compound's structure is probably derived from the VOPO4·2H2O layered lattice by substitution of [Mn(H2O)]3+ ions for a quarter of the vanadyl groups VO3+. Practically the same powder data and unit-cell parameters were found for [Mn(H2O)]x(VO)1−xPO4·2H2O, where x ranges from 0.185 to 0.25.

Type
Research Article
Information
Powder Diffraction , Volume 8 , Issue 2 , June 1993 , pp. 130 - 131
Copyright
Copyright © Cambridge University Press 1993

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References

Tachez, M., Theobald, D. F., Bernard, J., and Hewat, A. W. (1982) Revue Chimie Minerale 19, 291.Google Scholar
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