Materials Data on Nd2(ZnGe2)3 by Materials Project

Abstract

Nd2(ZnGe2)3 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Nd sites. In the first Nd site, Nd is bonded in a 8-coordinate geometry to six Zn and eight Ge atoms. There are two shorter (3.27 Å) and four longer (3.42 Å) Nd–Zn bond lengths. There are a spread of Nd–Ge bond distances ranging from 3.12–3.20 Å. In the second Nd site, Nd is bonded in a 8-coordinate geometry to six Zn and eight Ge atoms. There are two shorter (3.27 Å) and four longer (3.35 Å) Nd–Zn bond lengths. There are a spread of Nd–Ge bond distances ranging from 3.12–3.21 Å. There are two inequivalent Zn sites. In the first Zn site, Zn is bonded in a 5-coordinate geometry to four Nd and five Ge atoms. There are one shorter (2.52 Å) and four longer (2.60 Å) Zn–Ge bond lengths. In the second Zn site, Zn is bonded to four Nd and four Ge atoms to form a mixture of distorted edge and face-sharing ZnNd4Ge4 tetrahedra. There are two shorter (2.61 Å) and two longer (2.68 Å) Zn–Ge bond lengths. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to four Nd and five Zn atoms. In the second Ge site, Ge is bonded in a 1-coordinate geometry to two Nd, one Zn, and three equivalent Ge atoms. There are one shorter (2.50 Å) and two longer (2.57 Å) Ge–Ge bond lengths. In the third Ge site, Ge is bonded in a 8-coordinate geometry to four Nd and four equivalent Zn atoms.