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ScGa crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Sc is bonded in a 7-coordinate geometry to seven equivalent Ga atoms. There are five shorter (2.87 Å) and two longer (3.03 Å) Sc–Ga bond lengths. Ga is bonded in a 9-coordinate geometry to seven equivalent Sc and two equivalent Ga atoms. Both Ga–Ga bond lengths are 2.58 Å.
Mg(ScGa)2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Mg is bonded in a square co-planar geometry to four equivalent Ga atoms. All Mg–Ga bond lengths are 2.82 Å. Sc is bonded in a 6-coordinate geometry to six equivalent Ga atoms. There are two shorter (2.84 Å) and four longer (2.92 Å) Sc–Ga bond lengths. Ga is bonded in a 9-coordinate geometry to two equivalent Mg, six equivalent Sc, and one Ga atom. The Ga–Ga bond length is 2.55 Å.
Description of Superconductivity Global Alliance (ScGA) and potential Fermilab contributions to the field of applied superconductivity.