Materials Data on NiGePt2 by Materials Project

Abstract

Pt2NiGe crystallizes in the orthorhombic Fmmm space group. The structure is three-dimensional. there are two inequivalent Pt2- sites. In the first Pt2- site, Pt2- is bonded in a 6-coordinate geometry to four equivalent Pt2-, four equivalent Ni2+, and four equivalent Ge2+ atoms. All Pt–Pt bond lengths are 2.80 Å. There are two shorter (2.73 Å) and two longer (2.75 Å) Pt–Ni bond lengths. There are two shorter (2.58 Å) and two longer (2.90 Å) Pt–Ge bond lengths. In the second Pt2- site, Pt2- is bonded in a 12-coordinate geometry to four equivalent Pt2-, four equivalent Ni2+, and four equivalent Ge2+ atoms. All Pt–Ni bond lengths are 2.74 Å. All Pt–Ge bond lengths are 2.69 Å. Ni2+ is bonded in a 8-coordinate geometry to eight Pt2- and two equivalent Ge2+ atoms. Both Ni–Ge bond lengths are 2.42 Å. Ge2+ is bonded in a 10-coordinate geometry to eight Pt2- and two equivalent Ni2+ atoms.