Materials Data on CeMg2 by Materials Project

Abstract

CeMg2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Mg is bonded to seven equivalent Mg and five equivalent Ce atoms to form distorted MgCe5Mg7 cuboctahedra that share corners with six equivalent CeCe2Mg10 cuboctahedra, corners with twelve equivalent MgCe5Mg7 cuboctahedra, edges with four equivalent CeCe2Mg10 cuboctahedra, edges with fourteen equivalent MgCe5Mg7 cuboctahedra, faces with eight equivalent CeCe2Mg10 cuboctahedra, and faces with twelve equivalent MgCe5Mg7 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.14–3.46 Å. There are a spread of Mg–Ce bond distances ranging from 3.31–3.48 Å. Ce is bonded to ten equivalent Mg and two equivalent Ce atoms to form CeCe2Mg10 cuboctahedra that share corners with six equivalent CeCe2Mg10 cuboctahedra, corners with twelve equivalent MgCe5Mg7 cuboctahedra, edges with eight equivalent MgCe5Mg7 cuboctahedra, edges with ten equivalent CeCe2Mg10 cuboctahedra, faces with four equivalent CeCe2Mg10 cuboctahedra, and faces with sixteen equivalent MgCe5Mg7 cuboctahedra. Both Ce–Ce bond lengths are 3.12 Å.