Materials Data on ErCdGa by Materials Project
ErCdGa crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Er is bonded in a 11-coordinate geometry to six equivalent Cd and five Ga atoms. There are two shorter (3.24 Å) and four longer (3.45 Å) Er–Cd bond lengths. There are one shorter (3.06 Å) and four longer (3.08 Å) Er–Ga bond lengths. Cd is bonded in a 12-coordinate geometry to six equivalent Er, two equivalent Cd, and four Ga atoms. Both Cd–Cd bond lengths are 3.11 Å. There are two shorter (2.77 Å) and two longer (2.83 Å) Cd–Ga bond lengths. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded in a distorted q6 geometry to three equivalent Er and six equivalent Cd atoms. In the second Ga site, Ga is bonded in a 9-coordinate geometry to six equivalent Er and three equivalent Cd atoms.