Materials Data on UGa3Ni by Materials Project

Abstract

UNiGa3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. U is bonded in a 4-coordinate geometry to four equivalent Ni and twelve Ga atoms. All U–Ni bond lengths are 3.27 Å. There are a spread of U–Ga bond distances ranging from 3.07–3.31 Å. Ni is bonded in a 5-coordinate geometry to four equivalent U and five Ga atoms. There are one shorter (2.29 Å) and four longer (2.38 Å) Ni–Ga bond lengths. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded in a 1-coordinate geometry to four equivalent U, one Ni, and four equivalent Ga atoms. All Ga–Ga bond lengths are 2.67 Å. In the second Ga site, Ga is bonded in a distorted bent 120 degrees geometry to four equivalent U, two equivalent Ni, and two equivalent Ga atoms.