Materials Data on MnV2(PO4)3 by Materials Project
V2Mn(PO4)3 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. V+3.50+ is bonded to six O2- atoms to form VO6 octahedra that share corners with six equivalent PO4 tetrahedra. There is three shorter (1.93 Å) and three longer (2.04 Å) V–O bond length. Mn2+ is bonded in a 6-coordinate geometry to six equivalent O2- atoms. All Mn–O bond lengths are 2.26 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four equivalent VO6 octahedra. The corner-sharing octahedra tilt angles range from 26–45°. There is two shorter (1.53 Å) and two longer (1.56 Å) P–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one V+3.50+ and one P5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one V+3.50+, one Mn2+, and one P5+ atom.