Crystal chemistry of KCuMn{sub 3}(VO{sub 4}){sub 3} in the context of detailed systematics of the alluaudite family
- Moscow State University, Faculty of Geology (Russian Federation)
The crystal structure of new manganese potassium copper vanadate KCuMn{sub 3}(VO{sub 4}){sub 3}, which was prepared by the hydrothermal synthesis in the K{sub 2}CO{sub 3}–CuO–MnCl{sub 2}–V{sub 2}O{sub 5}–H{sub 2}O system, was studied by X-ray diffraction (R = 0.0355): a = 12.396(1) Å, b = 12.944(1) Å, c = 6.9786(5) Å, β = 112.723(1)°, sp. gr. C2/c, Z = 4, ρ{sub calc} = 3.938 g/cm{sup 3}. A comparative analysis of the crystal-chemical features of the new representative of the alluaudite family and related structures of minerals and synthetic phosphates, arsenates, and vanadates of the general formula A(1)A(1)′A(1)″A(2)A(2)′M(1)M(2){sub 2}(TO{sub 4}){sub 3} (where A are sites in the channels of the framework composed of MO{sub 6} octahedra and TO{sub 4} tetrahedra) was performed. A classification of these structures into subgroups according to the occupancy of A sites is suggested.
- OSTI ID:
- 22645443
- Journal Information:
- Crystallography Reports, Journal Name: Crystallography Reports Journal Issue: 4 Vol. 61; ISSN 1063-7745; ISSN CYSTE3
- Country of Publication:
- United States
- Language:
- English
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