Materials Data on CoAsS by Materials Project

Abstract

CoAsS is Spinel-like structured and crystallizes in the cubic P2_13 space group. The structure is three-dimensional. Co3+ is bonded to three equivalent As1- and three equivalent S2- atoms to form CoAs3S3 octahedra that share corners with twelve equivalent CoAs3S3 octahedra, corners with three equivalent AsCo3S tetrahedra, and corners with three equivalent SCo3As tetrahedra. The corner-sharing octahedral tilt angles are 64°. All Co–As bond lengths are 2.36 Å. All Co–S bond lengths are 2.29 Å. As1- is bonded to three equivalent Co3+ and one S2- atom to form AsCo3S tetrahedra that share corners with three equivalent CoAs3S3 octahedra, corners with six equivalent AsCo3S tetrahedra, and corners with nine equivalent SCo3As tetrahedra. The corner-sharing octahedral tilt angles are 79°. The As–S bond length is 2.33 Å. S2- is bonded to three equivalent Co3+ and one As1- atom to form SCo3As tetrahedra that share corners with three equivalent CoAs3S3 octahedra, corners with six equivalent SCo3As tetrahedra, and corners with nine equivalent AsCo3S tetrahedra. The corner-sharing octahedral tilt angles are 79°.