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GaY crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Y is bonded in a 7-coordinate geometry to seven equivalent Ga atoms. There are a spread of Y–Ga bond distances ranging from 3.06–3.20 Å. Ga is bonded in a 9-coordinate geometry to seven equivalent Y and two equivalent Ga atoms. Both Ga–Ga bond lengths are 2.63 Å.
YGa2 is hexagonal omega structure structured and crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Y is bonded to twelve equivalent Ga atoms to form a mixture of edge and face-sharing YGa12 cuboctahedra. All Y–Ga bond lengths are 3.19 Å. Ga is bonded in a 9-coordinate geometry to six equivalent Y and three equivalent Ga atoms. All Ga–Ga bond lengths are 2.43 Å.
YGa6 crystallizes in the tetragonal P4/nbm space group. The structure is three-dimensional. Y is bonded to twelve Ga atoms to form a mixture of edge and face-sharing YGa12 cuboctahedra. There are four shorter (3.08 Å) and eight longer (3.23 Å) Y–Ga bond lengths. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded in a 9-coordinate geometry to four equivalent Y and five Ga atoms. There are one shorter (2.44 Å) and four longer (2.62 Å) Ga–Ga bond lengths. In the second Ga site, Ga is bonded in a 4-coordinate geometry to one Y and three Ga atoms. The Ga–Ga bond length is 2.56 Å.
Y5Ga3 crystallizes in the tetragonal P4/ncc space group. The structure is three-dimensional. there are two inequivalent Y sites. In the first Y site, Y is bonded to five Ga atoms to form a mixture of distorted face, edge, and corner-sharing YGa5 trigonal bipyramids. There are a spread of Y–Ga bond distances ranging from 3.07–3.21 Å. In the second Y site, Y is bonded in a 4-coordinate geometry to six Ga atoms. There are a spread of Y–Ga bond distances ranging from 3.04–3.65 Å. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded in a 9-coordinate geometry to eight Y and one Ga atom. The Ga–Ga bond length is 2.66 Å. In the second Ga site, Ga is bonded in a 10-coordinate geometry to ten Y atoms.
YGa3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Y is bonded to twelve equivalent Ga atoms to form a mixture of distorted face and corner-sharing YGa12 cuboctahedra. There are six shorter (3.06 Å) and six longer (3.16 Å) Y–Ga bond lengths. Ga is bonded in a 10-coordinate geometry to four equivalent Y and six equivalent Ga atoms. There are two shorter (2.79 Å) and four longer (2.80 Å) Ga–Ga bond lengths.
YGa3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Y is bonded to twelve equivalent Ga atoms to form YGa12 cuboctahedra that share corners with twelve equivalent YGa12 cuboctahedra, edges with twenty-four equivalent GaY4Ga8 cuboctahedra, faces with six equivalent YGa12 cuboctahedra, and faces with twelve equivalent GaY4Ga8 cuboctahedra. All Y–Ga bond lengths are 3.03 Å. Ga is bonded to four equivalent Y and eight equivalent Ga atoms to form distorted GaY4Ga8 cuboctahedra that share corners with twelve equivalent GaY4Ga8 cuboctahedra, edges with eight equivalent YGa12 cuboctahedra, edges with sixteen equivalent GaY4Ga8 cuboctahedra, faces with four equivalent YGa12 cuboctahedra, and faces with fourteen equivalent GaY4Ga8 cuboctahedra. All Ga–Ga bond lengths are 3.03 Å.
Y3Ga2 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are three inequivalent Y sites. In the first Y site, Y is bonded in a 4-coordinate geometry to six Ga atoms. There are a spread of Y–Ga bond distances ranging from 2.92–3.71 Å. In the second Y site, Y is bonded in a 2-coordinate geometry to five Ga atoms. There are a spread of Y–Ga bond distances ranging from 2.99–3.56 Å. In the third Y site, Y is bonded in a 6-coordinate geometry to six Ga atoms. There are a spread of Y–Ga bond distances ranging from 2.98–3.33 Å. There are four inequivalent Ga sites. In the first Ga site, Ga is bonded in a 8-coordinate geometry to eight equivalent Y atoms. In the second Ga site, Ga is bonded in a body-centered cubic geometry to eight equivalent Y atoms. In the third Ga site, Ga is bonded in a 9-coordinate geometry to nine Y atoms. In the fourth Ga site, Ga is bonded in a 10-coordinate geometry to nine Y and one Ga atom. The Ga–Ga bond length is 2.80 Å.
Y3Ga is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Y is bonded to eight equivalent Y and four equivalent Ga atoms to form distorted YY8Ga4 cuboctahedra that share corners with twelve equivalent YY8Ga4 cuboctahedra, edges with eight equivalent GaY12 cuboctahedra, edges with sixteen equivalent YY8Ga4 cuboctahedra, faces with four equivalent GaY12 cuboctahedra, and faces with fourteen equivalent YY8Ga4 cuboctahedra. All Y–Y bond lengths are 3.36 Å. All Y–Ga bond lengths are 3.36 Å. Ga is bonded to twelve equivalent Y atoms to form GaY12 cuboctahedra that share corners with twelve equivalent GaY12 cuboctahedra, edges with twenty-four equivalent YY8Ga4 cuboctahedra, faces with six equivalent GaY12 cuboctahedra, and faces with twelve equivalent YY8Ga4 cuboctahedra.