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RuGa is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ru is bonded in a body-centered cubic geometry to eight equivalent Ga atoms. All Ru–Ga bond lengths are 2.62 Å. Ga is bonded in a body-centered cubic geometry to eight equivalent Ru atoms.
RuGa3 crystallizes in the tetragonal P4_2/mnm space group. The structure is three-dimensional. Ru is bonded in a 8-coordinate geometry to eight Ga atoms. There are a spread of Ru–Ga bond distances ranging from 2.45–2.60 Å. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded in a linear geometry to two equivalent Ru atoms. In the second Ga site, Ga is bonded in a 1-coordinate geometry to three equivalent Ru atoms.
RuGa2 is Titanium Disilicide structured and crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. Ru is bonded in a 10-coordinate geometry to ten equivalent Ga atoms. There are a spread of Ru–Ga bond distances ranging from 2.59–2.77 Å. Ga is bonded in a 10-coordinate geometry to five equivalent Ru and five equivalent Ga atoms. There are a spread of Ga–Ga bond distances ranging from 2.60–2.80 Å.