Materials Data on Y3Ga9Pt2 by Materials Project

Y3Pt2Ga9 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are two inequivalent Y sites. In the first Y site, Y is bonded to twelve Ga atoms to form distorted YGa12 cuboctahedra that share edges with two equivalent GaY4Ga4Pt4 cuboctahedra and faces with two equivalent YGa12 cuboctahedra. There are eight shorter (3.17 Å) and four longer (3.24 Å) Y–Ga bond lengths. In the second Y site, Y is bonded in a 10-coordinate geometry to two equivalent Pt and twelve Ga atoms. Both Y–Pt bond lengths are 3.09 Å. There are a spread of Y–Ga bond distances ranging from 3.09–3.45 Å. Pt is bonded in a 10-coordinate geometry to two equivalent Y and eight Ga atoms. There are a spread of Pt–Ga bond distances ranging from 2.60–2.85 Å. There are three inequivalent Ga sites. In the first Ga site, Ga is bonded to four equivalent Y, four equivalent Pt, and four equivalent Ga atoms to form GaY4Ga4Pt4 cuboctahedra that share edges with two equivalent YGa12 cuboctahedra and faces with two equivalent GaY4Ga4Pt4 cuboctahedra. All Ga–Ga bond lengths are 2.74 Å. In the second Ga site, Ga is bonded in a 1-coordinate geometry to four Y, one Pt, and four Ga atoms. There are a spread of Ga–Ga bond distances ranging from 2.54–2.71 Å. In the third Ga site, Ga is bonded in a 10-coordinate geometry to four Y, two equivalent Pt, and four Ga atoms.