DOI: 10.17188/1317700
title: Materials Data on MgMn2(PO4)2 by Materials Project

description: MgMn2(PO4)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Mg2+ sites. In the first Mg2+ site, Mg2+ is bonded in a 4-coordinate geometry to six O2- atoms. There are a spread of Mg–O bond distances ranging from 2.04–2.57 Å. In the second Mg2+ site, Mg2+ is bonded in a 4-coordinate geometry to six O2- atoms. There are a spread of Mg–O bond distances ranging from 2.05–2.59 Å. In the third Mg2+ site, Mg2+ is bonded in a 4-coordinate geometry to six O2- atoms. There are a spread of Mg–O bond distances ranging from 2.05–2.58 Å. In the fourth Mg2+ site, Mg2+ is bonded in a 4-coordinate geometry to six O2- atoms. There are a spread of Mg–O bond distances ranging from 2.04–2.61 Å. There are eight inequivalent Mn2+ sites. In the first Mn2+ site, Mn2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Mn–O bond distances ranging from 2.13–2.28 Å. In the second Mn2+ site, Mn2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Mn–O bond distances ranging from 2.13–2.27 Å. In the third Mn2+ site, Mn2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Mn–O bond distances ranging from 2.13–2.28 Å. In the fourth Mn2+ site, Mn2+ is bonded to six O2- atoms to form distorted MnO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Mn–O bond distances ranging from 2.15–2.34 Å. In the fifth Mn2+ site, Mn2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Mn–O bond distances ranging from 2.13–2.27 Å. In the sixth Mn2+ site, Mn2+ is bonded to four O2- atoms to form MnO4 tetrahedra that share corners with four PO4 tetrahedra. There are two shorter (2.02 Å) and two longer (2.07 Å) Mn–O bond lengths. In the seventh Mn2+ site, Mn2+ is bonded to four O2- atoms to form MnO4 tetrahedra that share corners with four PO4 tetrahedra. There are two shorter (2.02 Å) and two longer (2.07 Å) Mn–O bond lengths. In the eighth Mn2+ site, Mn2+ is bonded to six O2- atoms to form distorted MnO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Mn–O bond distances ranging from 2.15–2.35 Å. There are eight inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent MnO6 octahedra and a cornercorner with one MnO4 tetrahedra. The corner-sharing octahedra tilt angles range from 39–63°. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one MnO6 octahedra and a cornercorner with one MnO4 tetrahedra. The corner-sharing octahedral tilt angles are 15°. There are a spread of P–O bond distances ranging from 1.52–1.57 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent MnO6 octahedra and a cornercorner with one MnO4 tetrahedra. The corner-sharing octahedra tilt angles range from 40–63°. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one MnO6 octahedra and a cornercorner with one MnO4 tetrahedra. The corner-sharing octahedral tilt angles are 15°. There are a spread of P–O bond distances ranging from 1.52–1.57 Å. In the fifth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent MnO6 octahedra and a cornercorner with one MnO4 tetrahedra. The corner-sharing octahedra tilt angles range from 39–62°. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. In the sixth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent MnO6 octahedra and a cornercorner with one MnO4 tetrahedra. The corner-sharing octahedra tilt angles range from 40–63°. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. In the seventh P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one MnO6 octahedra and a cornercorner with one MnO4 tetrahedra. The corner-sharing octahedral tilt angles are 15°. There are a spread of P–O bond distances ranging from 1.52–1.57 Å. In the eighth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one MnO6 octahedra and a cornercorner with one MnO4 tetrahedra. The corner-sharing octahedral tilt angles are 15°. There are a spread of P–O bond distances ranging from 1.52–1.57 Å. There are thirty-two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Mg2+, one Mn2+, and one P5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Mg2+, one Mn2+, and one P5+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one Mg2+, one Mn2+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted T-shaped geometry to two Mn2+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to one Mg2+, two Mn2+, and one P5+ atom. In the sixth O2- site, O2- is bonded in a bent 120 degrees geometry to one Mn2+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted T-shaped geometry to two Mn2+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a trigonal planar geometry to one Mg2+, one Mn2+, and one P5+ atom. In the ninth O2- site, O2- is bonded in a distorted T-shaped geometry to two Mn2+ and one P5+ atom. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to one Mg2+, one Mn2+, and one P5+ atom. In the eleventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two Mn2+ and one P5+ atom. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to two Mg2+ and one P5+ atom. In the thirteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Mg2+, one Mn2+, and one P5+ atom. In the fourteenth O2- site, O2- is bonded in a trigonal planar geometry to one Mg2+, one Mn2+, and one P5+ atom. In the fifteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Mg2+, one Mn2+, and one P5+ atom. In the sixteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Mn2+ and one P5+ atom. In the seventeenth O2- site, O2- is bonded in a 2-coordinate geometry to two Mg2+ and one P5+ atom. In the eighteenth O2- site, O2- is bonded in a distorted T-shaped geometry to two Mn2+ and one P5+ atom. In the nineteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Mn2+ and one P5+ atom. In the twentieth O2- site, O2- is bonded in a 2-coordinate geometry to two Mg2+ and one P5+ atom. In the twenty-first O2- site, O2- is bonded in a trigonal planar geometry to one Mg2+, one Mn2+, and one P5+ atom. In the twenty-second O2- site, O2- is bonded in a 4-coordinate geometry to one Mg2+, two Mn2+, and one P5+ atom. In the twenty-third O2- site, O2- is bonded in a trigonal planar geometry to one Mg2+, one Mn2+, and one P5+ atom. In the twenty-fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one Mn2+ and one P5+ atom. In the twenty-fifth O2- site, O2- is bonded in a 3-coordinate geometry to one Mg2+, one Mn2+, and one P5+ atom. In the twenty-sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Mg2+, one Mn2+, and one P5+ atom. In the twenty-seventh O2- site, O2- is bonded in a 2-coordinate geometry to two Mg2+ and one P5+ atom. In the twenty-eighth O2- site, O2- is bonded in a 4-coordinate geometry to one Mg2+, two Mn2+, and one P5+ atom. In the twenty-ninth O2- site, O2- is bonded in a 4-coordinate geometry to one Mg2+, two Mn2+, and one P5+ atom. In the thirtieth O2- site, O2- is bonded in a bent 120 degrees geometry to one Mn2+ and one P5+ atom. In the thirty-first O2- site, O2- is bonded in a bent 120 degrees geometry to one Mn2+ and one P5+ atom. In the thirty-second O2- site, O2- is bonded in a distorted trigonal planar geometry to two Mn2+ and one P5+ atom.