Materials Data on VNi(PO4)2 by Materials Project

Dataset · Thu Sep 03 04:00:00 EDT 2020

DOI:https://doi.org/10.17188/1757770· OSTI ID:1757770

VNi(PO4)2 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. V4+ is bonded to six O2- atoms to form VO6 octahedra that share corners with four equivalent NiO6 octahedra, corners with four PO4 tetrahedra, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 47–50°. There are a spread of V–O bond distances ranging from 1.93–2.06 Å. Ni2+ is bonded to six O2- atoms to form distorted NiO6 octahedra that share corners with four equivalent VO6 octahedra, corners with four PO4 tetrahedra, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 47–50°. There are a spread of Ni–O bond distances ranging from 1.97–2.28 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 a cornercorner with one NiO6 octahedra, corners with three equivalent VO6 octahedra, and an edgeedge with one NiO6 octahedra. The corner-sharing octahedra tilt angles range from 51–55°. There are a spread of P–O bond distances ranging from 1.50–1.60 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one VO6 octahedra, corners with three equivalent NiO6 octahedra, and an edgeedge with one VO6 octahedra. The corner-sharing octahedra tilt angles range from 40–59°. There are a spread of P–O bond distances ranging from 1.51–1.59 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to one V4+ and one P5+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Ni2+ and one P5+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one V4+, one Ni2+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to one V4+, one Ni2+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one V4+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Ni2+ and one P5+ atom.

• Research Organization: LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
• Contributing Organization: The Materials Project; MIT; UC Berkeley; Duke; U Louvain
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1757770
• Report Number(s): mp-1101213
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
Ni-O-P-V
VNi(PO4)2
crystal structure