
TY  - JOUR
A1  - Barbier, J 
T1  - Structural Refinement of Olivine-Type LiMgAsO<sub>4</sub>
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1992
VL  - 45
IS  - 9
SP  - 1355
EP  - 1362
KW  - 
UR  - https://doi.org/10.1071/CH9921355 
N2  - The refinement of the LiMgAsO4 structure by powder neutron diffraction confirms that it is isostructural with olivine. The structure is orthorhombic, Pnma space group, with a = 10.4183(15), b = 5.9660(8), c = 4.8692(5) Å, and Z = 4. The lithium and magnesium atoms are fully ordered on the octahedral sites with average bond lengths (Li-O) = 2.187, (Mg-O) = 2.108 and (As-O) = 1.672 A. LiMgAsO4 is isostructural with LiMgPO4 but not with LiMgVO4. However, a close structural relationship exists between the arsenate and the vanadate involving similar cation arrays but different anion arrays. 
ER  -

