Materials Data on AlAg2 by Materials Project

Abstract

Ag2Al crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Ag is bonded to seven equivalent Ag and five equivalent Al atoms to form distorted AgAl5Ag7 cuboctahedra that share corners with nine equivalent AgAl5Ag7 cuboctahedra, corners with nine equivalent AlAl2Ag10 cuboctahedra, edges with four equivalent AlAl2Ag10 cuboctahedra, edges with fourteen equivalent AgAl5Ag7 cuboctahedra, faces with seven equivalent AlAl2Ag10 cuboctahedra, and faces with thirteen equivalent AgAl5Ag7 cuboctahedra. There are a spread of Ag–Ag bond distances ranging from 2.84–3.00 Å. There are a spread of Ag–Al bond distances ranging from 2.79–3.01 Å. Al is bonded to ten equivalent Ag and two equivalent Al atoms to form distorted AlAl2Ag10 cuboctahedra that share corners with eighteen equivalent AgAl5Ag7 cuboctahedra, edges with eight equivalent AgAl5Ag7 cuboctahedra, edges with ten equivalent AlAl2Ag10 cuboctahedra, faces with six equivalent AlAl2Ag10 cuboctahedra, and faces with fourteen equivalent AgAl5Ag7 cuboctahedra. Both Al–Al bond lengths are 2.89 Å.