Materials Data on Ce(AgGe)2 by Materials Project

Abstract

CeAg2Ge2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ce is bonded in a 8-coordinate geometry to eight equivalent Ag and eight equivalent Ge atoms. All Ce–Ag bond lengths are 3.53 Å. All Ce–Ge bond lengths are 3.28 Å. Ag is bonded to four equivalent Ce, four equivalent Ag, and four equivalent Ge atoms to form a mixture of distorted face, edge, and corner-sharing AgCe4Ag4Ge4 cuboctahedra. All Ag–Ag bond lengths are 3.04 Å. All Ag–Ge bond lengths are 2.67 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Ce, four equivalent Ag, and one Ge atom. The Ge–Ge bond length is 2.45 Å.