Materials Data on Cd(AsO4)4 by Materials Project

Abstract

Cd(AsO4)4 crystallizes in the triclinic P-1 space group. The structure is one-dimensional and consists of one Cd(AsO4)4 ribbon oriented in the (1, 0, 0) direction. Cd is bonded to six O atoms to form CdO6 octahedra that share corners with six AsO4 tetrahedra. There are a spread of Cd–O bond distances ranging from 2.23–2.34 Å. There are two inequivalent As sites. In the first As site, As is bonded to four O atoms to form AsO4 tetrahedra that share a cornercorner with one CdO6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are a spread of As–O bond distances ranging from 1.71–1.76 Å. In the second As site, As is bonded to four O atoms to form AsO4 tetrahedra that share corners with two equivalent CdO6 octahedra. The corner-sharing octahedra tilt angles range from 50–55°. There are a spread of As–O bond distances ranging from 1.71–1.75 Å. There are eight inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to one Cd and one As atom. In the second O site, O is bonded in a single-bond geometry to one As atom. In the third O site, O is bonded in a single-bond geometry to one As atom. In the fourth O site, O is bonded in a single-bond geometry to one As atom. In the fifth O site, O is bonded in a bent 120 degrees geometry to one Cd and one As atom. In the sixth O site, O is bonded in a single-bond geometry to one As atom. In the seventh O site, O is bonded in a bent 120 degrees geometry to one Cd and one As atom. In the eighth O site, O is bonded in a single-bond geometry to one As atom.