Materials Data on Nd2GaNi2 by Materials Project

Nd2Ni2Ga crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. Nd is bonded in a 10-coordinate geometry to six equivalent Ni and four equivalent Ga atoms. There are two shorter (2.94 Å) and four longer (3.02 Å) Nd–Ni bond lengths. There are two shorter (3.28 Å) and two longer (3.29 Å) Nd–Ga bond lengths. Ni is bonded in a 9-coordinate geometry to six equivalent Nd, one Ni, and two equivalent Ga atoms. The Ni–Ni bond length is 2.47 Å. Both Ni–Ga bond lengths are 2.63 Å. Ga is bonded to eight equivalent Nd and four equivalent Ni atoms to form a mixture of edge and face-sharing GaNd8Ni4 cuboctahedra.

Nd₂Ni₂Ga 结晶于正交晶系（orthorhombic）的 Immm 空间群，其晶体结构为三维结构。钕（Nd）原子以10配位几何构型与6个等价的镍（Ni）原子及4个等价的镓（Ga）原子成键。其中 Nd-Ni 键长分为两组：2个较短键长为2.94 Å，4个较长键长为3.02 Å；Nd-Ga 键长同样分为两组：2个较短键长为3.28 Å，2个较长键长为3.29 Å。镍（Ni）原子以9配位几何构型与6个等价的钕原子、1个镍原子及2个等价的镓原子成键，其中 Ni-Ni 键长为2.47 Å，Ni-Ga 键长均为2.63 Å。镓（Ga）原子与8个等价的钕原子和4个等价的镍原子成键，形成共边与共面混合型的 GaNd₈Ni₄ 立方八面体（cuboctahedra）结构单元。