Materials Data on Mg2Cd by Materials Project

Abstract

Mg2Cd crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Mg is bonded to seven equivalent Mg and five equivalent Cd atoms to form distorted MgMg7Cd5 cuboctahedra that share corners with nine equivalent MgMg7Cd5 cuboctahedra, corners with nine equivalent CdMg10Cd2 cuboctahedra, edges with four equivalent CdMg10Cd2 cuboctahedra, edges with fourteen equivalent MgMg7Cd5 cuboctahedra, faces with seven equivalent CdMg10Cd2 cuboctahedra, and faces with thirteen equivalent MgMg7Cd5 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.10–3.17 Å. There are four shorter (3.12 Å) and one longer (3.17 Å) Mg–Cd bond lengths. Cd is bonded to ten equivalent Mg and two equivalent Cd atoms to form distorted CdMg10Cd2 cuboctahedra that share corners with eighteen equivalent MgMg7Cd5 cuboctahedra, edges with eight equivalent MgMg7Cd5 cuboctahedra, edges with ten equivalent CdMg10Cd2 cuboctahedra, faces with six equivalent CdMg10Cd2 cuboctahedra, and faces with fourteen equivalent MgMg7Cd5 cuboctahedra. Both Cd–Cd bond lengths are 3.17 Å.