Le phosphate de cobalt et de lithium à valence mixte Li4+xCo2−x(P2O7)2(x= 0,03): étude structurale et analyse de distribution de charge
- 19 December 2009
- journal article
- abstracts
- Published by International Union of Crystallography (IUCr) in Acta Crystallographica Section C Crystal Structure Communications
- Vol. 66 (1) , i4-i6
Abstract
The title compound, namely lithium cobalt(II/III) bis(diphosphate), Li(4.03)Co(1.97)(P(2)O(7))(2), is a new mixed-valent lithium/cobalt(II/III) phosphate. Three metal sites out of seven are occupied simultaneously by Li(+) and Co(II/III) ions. This disorder was established both from an analysis of the atomic displacement ellipsoids and Li/Co-O bond distances, and by means of a charge-distribution (CHARDI) model, which provides satisfactory agreement on the computed charges (Q) for all the cations.Keywords
This publication has 16 references indexed in Scilit:
- Synthesis, crystal structure and charge distribution of Na7As11O31: An oxygen-deficient layered sodium arsenateJournal of Solid State Chemistry, 2006
- LiMnPO[sub 4] as the Cathode for Lithium BatteriesElectrochemical and Solid-State Letters, 2002
- Crystal structure and charge distribution of YbFeMnO4Acta crystallographica Section B, Structural science, crystal engineering and materials, 2000
- Magnetoelectric properties of LiCoPO4: microscopic theoryPhysica B: Condensed Matter, 1999
- WinGXsuite for small-molecule single-crystal crystallographyJournal of Applied Crystallography, 1999
- Olivine LiCoPO[sub 4] as 4.8 V Electrode Material for Lithium BatteriesElectrochemical and Solid-State Letters, 1999
- Interaction of alkenes with CoAPO molecular sievesJournal of the Chemical Society, Faraday Transactions, 1996
- Spinel versus layered structures for lithium cobalt oxide synthesised at 400°CMaterials Research Bulletin, 1993
- A new route to charge distributions in ionic solidsJournal of the Less Common Metals, 1989
- Recent developments in the bond valence model of inorganic bondingPhysics and Chemistry of Minerals, 1987