title: A mixed indium-iron lithium diphosphate, In(0.51)Fe(0.49)LiP(2)O(7).
abstract: The structure of In(0.51)Fe(0.49)LiP(2)O(7) consists of a three-dimensional network constructed from (In(III)/Fe(III))O(6) octa-hedra and P(2)O(7) groups. Each M(III)O(6) octa-hedron is linked to six PO(4) tetra-hedra belonging to five different P(2)O(7) groups and shares two corners with the same P(2)O(7) group so as to build infinite chains or rather parallel colums of [M(III)P(2)O(11)] running along the a axis. The linkage between these chains or columns defines hepta-gonal tunnels parallel to [100] in which the Li(+) ions are located in off-centred positions. The In(0.51)Fe(0.49)LiP(2)O(7) compound can be regarded as one composition of the continuous solid solution between LiFeP(2)O(7) and LiInP(2)O(7) whose structure is isotypic with the A(I)FeP(2)O(7) (A(I) = Na, K, Rb, Cs and Ag) diphosphate family.
authors.forename: Hafid
authors.initials: H
authors.lastname: Zouihri
authors.forename: Mohamed
authors.initials: M
authors.lastname: Saadi
authors.forename: Boujemaa
authors.initials: B
authors.lastname: Jaber
authors.forename: Lehcen
authors.initials: L
authors.lastname: El Ammari