Materials Data on Sm2GaCo2 by Materials Project
Sm2Co2Ga crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. Sm is bonded in a 10-coordinate geometry to six equivalent Co and four equivalent Ga atoms. There are four shorter (2.96 Å) and two longer (2.97 Å) Sm–Co bond lengths. There are two shorter (3.25 Å) and two longer (3.27 Å) Sm–Ga bond lengths. Co is bonded in a 9-coordinate geometry to six equivalent Sm, one Co, and two equivalent Ga atoms. The Co–Co bond length is 2.35 Å. Both Co–Ga bond lengths are 2.59 Å. Ga is bonded to eight equivalent Sm and four equivalent Co atoms to form a mixture of edge and face-sharing GaSm8Co4 cuboctahedra.
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