Zouihri Hafid, Saadi Mohamed, Jaber Boujemaa, El Ammari Lehcen
Acta Crystallogr Sect E Struct Rep Online. 2011 Apr 1;67(Pt 4):i27. doi: 10.1107/S1600536811009111. Epub 2011 Mar 15.
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.
In(0.51)Fe(0.49)LiP(2)O(7)的结构由一个三维网络构成,该网络由(In(III)/Fe(III))O(6)八面体和P(2)O(7)基团构建而成。每个M(III)O(6)八面体与属于五个不同P(2)O(7)基团的六个PO(4)四面体相连,并与同一个P(2)O(7)基团共享两个角,从而形成沿a轴延伸的无限长链或更确切地说是平行柱体[M(III)P(2)O(11)]。这些链或柱体之间的连接定义了平行于[100]的七边形隧道,Li(+)离子位于其中的偏心位置。In(0.51)Fe(0.49)LiP(2)O(7)化合物可被视为LiFeP(2)O(7)和LiInP(2)O(7)之间连续固溶体的一种组成,其结构与A(I)FeP(2)O(7)(A(I)=Na、K、Rb、Cs和Ag)二磷酸盐家族同型。