Materials Data on CaZn2(PO5)2 by Materials Project

Abstract

CaZn2(PO5)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Ca is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.26–2.94 Å. There are two inequivalent Zn sites. In the first Zn site, Zn is bonded to four O atoms to form ZnO4 tetrahedra that share corners with two equivalent ZnO4 tetrahedra and corners with four PO4 tetrahedra. There are a spread of Zn–O bond distances ranging from 1.95–2.00 Å. In the second Zn site, Zn is bonded to four O atoms to form ZnO4 tetrahedra that share corners with two equivalent ZnO4 tetrahedra and corners with four PO4 tetrahedra. There are a spread of Zn–O bond distances ranging from 1.95–2.01 Å. There are two inequivalent P sites. In the first P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four ZnO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.53–1.59 Å. In the second P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four ZnO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.53–1.59 Å. There are ten inequivalent O sites. In the first O site, O is bonded in a distorted bent 120 degrees geometry to one Ca, one Zn, and one P atom. In the second O site, O is bonded in a distorted bent 120 degrees geometry to one Ca, one Zn, and one P atom. In the third O site, O is bonded in a distorted bent 120 degrees geometry to one Zn and one P atom. In the fourth O site, O is bonded in a distorted bent 120 degrees geometry to one Zn and one P atom. In the fifth O site, O is bonded in a distorted bent 120 degrees geometry to one Ca and one O atom. The O–O bond length is 1.23 Å. In the sixth O site, O is bonded in a distorted bent 120 degrees geometry to one Ca and one O atom. The O–O bond length is 1.23 Å. In the seventh O site, O is bonded in a trigonal planar geometry to two Zn and one P atom. In the eighth O site, O is bonded in a trigonal planar geometry to two Zn and one P atom. In the ninth O site, O is bonded in a 3-coordinate geometry to two equivalent Ca and one P atom. In the tenth O site, O is bonded in a 3-coordinate geometry to two equivalent Ca and one P atom.