Materials Data on K2Co(SO5)2 by Materials Project
K2Co(SO5)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. K is bonded in a 3-coordinate geometry to eight O atoms. There are a spread of K–O bond distances ranging from 2.78–3.25 Å. Co is bonded to six O atoms to form CoO6 octahedra that share corners with four equivalent SO4 tetrahedra. There are a spread of Co–O bond distances ranging from 1.75–2.14 Å. S is bonded to four O atoms to form SO4 tetrahedra that share corners with two equivalent CoO6 octahedra. The corner-sharing octahedra tilt angles range from 45–55°. There are a spread of S–O bond distances ranging from 1.46–1.56 Å. There are five inequivalent O sites. In the first O site, O is bonded in a distorted single-bond geometry to two equivalent K and one S atom. In the second O site, O is bonded in a 1-coordinate geometry to two equivalent K, one Co, and one S atom. In the third O site, O is bonded in a bent 120 degrees geometry to one K, one Co, and one S atom. In the fourth O site, O is bonded in a distorted single-bond geometry to two equivalent K and one S atom. In the fifth O site, O is bonded in a single-bond geometry to one K and one Co atom.