Lanthanum ruthenium indide, La21Ru9+xIn5-x (x = 1.2)

Abstract

La21Ru9+xIn5-x (Pearson symbol tI140) is isotypic to the filled Y3Rh2-type structure, from which it can be derived through an ordered substitution at two sites. One of the square-prismatic sites (site symmetry ..m) is occupied by a mixture of Ru and In atoms and one of the square-antiprismatic sites (4/m..) is fully occupied by In atoms.