Materials Data on Er6GaNi2 by Materials Project
Er6Ni2Ga crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are three inequivalent Er sites. In the first Er site, Er is bonded in a 4-coordinate geometry to two Ni and two Ga atoms. There are one shorter (2.76 Å) and one longer (3.17 Å) Er–Ni bond lengths. There are one shorter (2.98 Å) and one longer (3.20 Å) Er–Ga bond lengths. In the second Er site, Er is bonded in a 4-coordinate geometry to three Ni and one Ga atom. There are one shorter (2.70 Å) and two longer (2.85 Å) Er–Ni bond lengths. The Er–Ga bond length is 3.32 Å. In the third Er site, Er is bonded in a 4-coordinate geometry to three Ni and two Ga atoms. There are two shorter (2.90 Å) and one longer (3.11 Å) Er–Ni bond lengths. There are one shorter (3.14 Å) and one longer (3.62 Å) Er–Ga bond lengths. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 9-coordinate geometry to eight Er and one Ni atom. The Ni–Ni bond length is 2.71 Å. In the second Ni site, Ni is bonded in a 9-coordinate geometry to eight Er and one Ni atom. The Ni–Ni bond length is 2.40 Å. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded in a body-centered cubic geometry to eight Er atoms. In the second Ga site, Ga is bonded in a cuboctahedral geometry to twelve Er atoms.