Materials Data on NiS2 by Materials Project

Abstract

NiS2 is Marcasite-like structured and crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. Ni4+ is bonded to six equivalent S2- atoms to form NiS6 octahedra that share corners with eight equivalent NiS6 octahedra, corners with six equivalent SNi3S tetrahedra, and edges with two equivalent NiS6 octahedra. The corner-sharing octahedra tilt angles range from 58–66°. There are a spread of Ni–S bond distances ranging from 2.32–2.40 Å. S2- is bonded to three equivalent Ni4+ and one S2- atom to form distorted SNi3S tetrahedra that share corners with three equivalent NiS6 octahedra, corners with thirteen equivalent SNi3S tetrahedra, and an edgeedge with one SNi3S tetrahedra. The corner-sharing octahedra tilt angles range from 69–75°. The S–S bond length is 2.14 Å.