Materials Data on Zn2CoP2(H2O3)4 by Materials Project

Abstract

CoZn2P2(H2O3)4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent PO4 tetrahedra. There are a spread of Co–O bond distances ranging from 2.09–2.16 Å. Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with two equivalent ZnO4 tetrahedra and corners with four equivalent PO4 tetrahedra. There are a spread of Zn–O bond distances ranging from 1.92–2.03 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one CoO6 octahedra and corners with four equivalent ZnO4 tetrahedra. The corner-sharing octahedral tilt angles are 48°. There are a spread of P–O bond distances ranging from 1.53–1.60 Å. There are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.97 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.97 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one P5+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Zn2+ and one P5+ atom. In the third O2- site, O2- is bonded in a trigonal planar geometry to two equivalent Zn2+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted water-like geometry to one Co2+ and two H1+ atoms. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one Co2+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted water-like geometry to one Co2+ and two equivalent H1+ atoms. In the seventh O2- site, O2- is bonded in a distorted water-like geometry to one Co2+ and two equivalent H1+ atoms.