Crystal structures of double calcium and alkali metal phosphates Ca10M(PO4)(7) (M = Li, Na, K)

Authors
Morozov, VA Belik, AA Kotov, RN Presnyakov, IA Khasanov, SS Lazoryak, BI
Citation
Va. Morozov et al., Crystal structures of double calcium and alkali metal phosphates Ca10M(PO4)(7) (M = Li, Na, K), CRYSTALLO R, 45(1), 2000, pp. 13-20
Citations number
18
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CRYSTALLOGRAPHY REPORTS
ISSN journal
10637745 → ACNP
Volume
45
Issue
1
Year of publication
2000
Pages
13 - 20
Database
ISI
SICI code
1063-7745(200001/02)45:1<13:CSODCA>2.0.ZU;2-Q
Abstract
Crystal structures of double calcium and alkali metal phosphates described by the general formula Ca10M(PO4)(7) (M = Li, Na, K) have been studied by t he Rietveld method. The lattice parameters are a = 10.4203(1) and c = 37.38 9(1) Angstrom (for M = Li), a = 10.4391(1) and c = 37.310(1) Angstrom (for M = Na), and a = 10.4229(1) and c = 37.279(2) Angstrom (for M = K); sp. gr. R3c, Z = 6. The specific features of the distribution of alkali metal cati ons over the structure positions are discussed. (C) 2000 MAIK "Nauka/Interp eriodica".