Materials Data on Zr2(ZnGa)3 by Materials Project

Abstract

Zr2(ZnGa)3 crystallizes in the orthorhombic Pmmm space group. The structure is three-dimensional. Zr is bonded to six Zn and six Ga atoms to form ZrZn6Ga6 cuboctahedra that share corners with twelve equivalent ZrZn6Ga6 cuboctahedra, edges with twelve ZnZr4Zn4Ga4 cuboctahedra, edges with twelve GaZr4Zn6Ga2 cuboctahedra, faces with six equivalent ZrZn6Ga6 cuboctahedra, faces with six ZnZr4Zn4Ga4 cuboctahedra, and faces with six GaZr4Zn6Ga2 cuboctahedra. There are a spread of Zr–Zn bond distances ranging from 2.87–2.92 Å. There are two shorter (2.86 Å) and four longer (2.87 Å) Zr–Ga bond lengths. There are three inequivalent Zn sites. In the first Zn site, Zn is bonded to four equivalent Zr, four equivalent Zn, and four equivalent Ga atoms to form ZnZr4Zn4Ga4 cuboctahedra that share corners with four equivalent ZnZr4Zn4Ga4 cuboctahedra, corners with eight equivalent GaZr4Zn4Ga4 cuboctahedra, edges with eight equivalent ZrZn6Ga6 cuboctahedra, edges with eight equivalent ZnZr4Ga8 cuboctahedra, edges with eight equivalent GaZr4Zn6Ga2 cuboctahedra, faces with four equivalent ZrZn6Ga6 cuboctahedra, faces with six GaZr4Zn6Ga2 cuboctahedra, and faces with eight ZnZr4Zn4Ga4 cuboctahedra. All Zn–Zn bond lengths are 2.87 Å. All Zn–Ga bond lengths are 2.86 Å. In the second Zn site, Zn is bonded to four equivalent Zr and eight Ga atoms to form ZnZr4Ga8 cuboctahedra that share corners with twelve ZnZr4Ga8 cuboctahedra, edges with eight equivalent ZrZn6Ga6 cuboctahedra, edges with eight equivalent ZnZr4Zn4Ga4 cuboctahedra, edges with eight equivalent GaZr4Zn6Ga2 cuboctahedra, faces with four equivalent ZrZn6Ga6 cuboctahedra, faces with six ZnZr4Ga8 cuboctahedra, and faces with eight GaZr4Zn6Ga2 cuboctahedra. There are four shorter (2.87 Å) and four longer (2.92 Å) Zn–Ga bond lengths. In the third Zn site, Zn is bonded to four equivalent Zr, four equivalent Zn, and four equivalent Ga atoms to form ZnZr4Zn4Ga4 cuboctahedra that share corners with twelve ZnZr4Ga8 cuboctahedra, edges with eight equivalent ZrZn6Ga6 cuboctahedra, edges with sixteen GaZr4Zn6Ga2 cuboctahedra, faces with four equivalent ZrZn6Ga6 cuboctahedra, faces with four equivalent GaZr4Zn6Ga2 cuboctahedra, and faces with ten ZnZr4Zn4Ga4 cuboctahedra. All Zn–Ga bond lengths are 2.85 Å. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded to four equivalent Zr, six Zn, and two equivalent Ga atoms to form distorted GaZr4Zn6Ga2 cuboctahedra that share corners with twelve equivalent GaZr4Zn6Ga2 cuboctahedra, edges with four equivalent GaZr4Zn4Ga4 cuboctahedra, edges with eight equivalent ZrZn6Ga6 cuboctahedra, edges with twelve ZnZr4Zn4Ga4 cuboctahedra, faces with four equivalent ZrZn6Ga6 cuboctahedra, faces with six ZnZr4Zn4Ga4 cuboctahedra, and faces with eight GaZr4Zn6Ga2 cuboctahedra. Both Ga–Ga bond lengths are 2.94 Å. In the second Ga site, Ga is bonded to four equivalent Zr, four equivalent Zn, and four equivalent Ga atoms to form distorted GaZr4Zn4Ga4 cuboctahedra that share corners with four equivalent GaZr4Zn4Ga4 cuboctahedra, corners with eight equivalent ZnZr4Zn4Ga4 cuboctahedra, edges with eight equivalent ZrZn6Ga6 cuboctahedra, edges with eight equivalent ZnZr4Zn4Ga4 cuboctahedra, edges with eight equivalent GaZr4Zn6Ga2 cuboctahedra, faces with four equivalent ZrZn6Ga6 cuboctahedra, faces with six ZnZr4Zn4Ga4 cuboctahedra, and faces with eight GaZr4Zn6Ga2 cuboctahedra.