Materials Data on CuSb(PO4)2 by Materials Project
CuSb(PO4)2 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Cu1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Cu–O bond distances ranging from 1.92–2.54 Å. Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with four PO4 tetrahedra and an edgeedge with one PO4 tetrahedra. There are a spread of Sb–O bond distances ranging from 2.08–2.16 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent SbO6 octahedra. The corner-sharing octahedra tilt angles range from 50–53°. There are a spread of P–O bond distances ranging from 1.52–1.58 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one SbO6 octahedra and an edgeedge with one SbO6 octahedra. The corner-sharing octahedral tilt angles are 44°. There are a spread of P–O bond distances ranging from 1.51–1.60 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sb5+ and one P5+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Cu1+ and one P5+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to one Cu1+, one Sb5+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Cu1+, one Sb5+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Sb5+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Cu1+ and one P5+ atom.