Materials Data on Ba2Mn(PO4)2 by Materials Project

Dataset · Fri Apr 24 04:00:00 EDT 2020

DOI:https://doi.org/10.17188/1194523· OSTI ID:1194523

Ba2Mn(PO4)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded to seven O2- atoms to form distorted BaO7 pentagonal bipyramids that share corners with three equivalent MnO6 octahedra, corners with two equivalent BaO7 pentagonal bipyramids, corners with five PO4 tetrahedra, an edgeedge with one MnO6 octahedra, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 45–82°. There are a spread of Ba–O bond distances ranging from 2.74–2.95 Å. In the second Ba2+ site, Ba2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ba–O bond distances ranging from 2.72–3.14 Å. Mn2+ is bonded to six O2- atoms to form distorted MnO6 octahedra that share corners with three equivalent BaO7 pentagonal bipyramids, corners with four PO4 tetrahedra, an edgeedge with one BaO7 pentagonal bipyramid, and an edgeedge with one PO4 tetrahedra. There are a spread of Mn–O bond distances ranging from 2.15–2.47 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 two equivalent MnO6 octahedra and corners with four equivalent BaO7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 41–46°. There is two shorter (1.56 Å) and two longer (1.57 Å) P–O bond length. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent MnO6 octahedra, a cornercorner with one BaO7 pentagonal bipyramid, an edgeedge with one MnO6 octahedra, and an edgeedge with one BaO7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 28–65°. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ba2+ and one P5+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Ba2+, one Mn2+, and one P5+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one Ba2+, one Mn2+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to two Ba2+, one Mn2+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to two Ba2+, one Mn2+, and one P5+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to one Ba2+, one Mn2+, and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to three Ba2+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a 1-coordinate geometry to two Ba2+, one Mn2+, 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: 1194523
• Report Number(s): mp-19487
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
Ba-Mn-O-P
Ba2Mn(PO4)2
crystal structure