Materials Data on Nb5Ga3 by Materials Project
Nb5Ga3 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Nb sites. In the first Nb site, Nb is bonded in a 6-coordinate geometry to two equivalent Nb and four equivalent Ga atoms. Both Nb–Nb bond lengths are 2.53 Å. All Nb–Ga bond lengths are 2.78 Å. In the second Nb site, Nb is bonded in a 5-coordinate geometry to five Ga atoms. There are a spread of Nb–Ga bond distances ranging from 2.60–2.90 Å. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded to four equivalent Nb and two equivalent Ga atoms to form corner-sharing GaNb4Ga2 octahedra. The corner-sharing octahedral tilt angles are 0°. Both Ga–Ga bond lengths are 2.53 Å. In the second Ga site, Ga is bonded in a distorted q6 geometry to ten Nb atoms.