Crystal structure of Li3Ga(BO3)2

Abstract

The crystal structure of trilithium gallium bis(orthoborate), Li3Ga(BO3)2, is isotypic with Li3Al(BO3)2in a triclinic cell in space-group typeP-1. The three Li and the unique Ga atom are coordinated by four O atoms each in tetrahedra, and the two B atoms are coordinated by three O atoms in orthoborate triangles. Chains with composition [Ga2(BO3)4]6−extend along theaaxis. The Li atoms interleave these chains in tetrahedral interstices. A comparison is made between the structure model of the title compound and that of a previously reported model for a compound with the same composition [Abdullaev & Mamedov (1972).Zh. Strukt. Khim.13, 943–946.]