DOI: 10.17188/1705149
title: Materials Data on Mn3Al4FeP4(H4O7)4 by Materials Project

description: Mn3FeAl4P4(H4O7)4 crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are three inequivalent Mn2+ sites. In the first Mn2+ site, Mn2+ is bonded to six O2- atoms to form distorted MnO6 octahedra that share corners with two equivalent AlO6 octahedra, corners with four equivalent PO4 tetrahedra, and edges with two equivalent MnO6 octahedra. The corner-sharing octahedral tilt angles are 49°. There are a spread of Mn–O bond distances ranging from 2.08–2.52 Å. In the second Mn2+ site, Mn2+ is bonded to six O2- atoms to form distorted MnO6 octahedra that share corners with two equivalent AlO5 square pyramids, corners with four equivalent PO4 tetrahedra, and edges with two equivalent MnO6 octahedra. There are a spread of Mn–O bond distances ranging from 2.08–2.55 Å. In the third Mn2+ site, Mn2+ is bonded to six O2- atoms to form distorted MnO6 octahedra that share corners with two equivalent AlO6 octahedra, corners with four equivalent PO4 tetrahedra, and edges with two equivalent FeO6 octahedra. The corner-sharing octahedral tilt angles are 48°. There are a spread of Mn–O bond distances ranging from 2.09–2.52 Å. Fe2+ is bonded to six O2- atoms to form distorted FeO6 octahedra that share corners with two equivalent AlO5 square pyramids, corners with four equivalent PO4 tetrahedra, and edges with two equivalent MnO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.01–2.53 Å. There are two inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to five O2- atoms to form distorted AlO5 square pyramids that share a cornercorner with one MnO6 octahedra, a cornercorner with one FeO6 octahedra, a cornercorner with one AlO6 octahedra, and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 46–58°. There are a spread of Al–O bond distances ranging from 1.82–1.96 Å. In the second Al3+ site, Al3+ is bonded to six O2- atoms to form distorted AlO6 octahedra that share corners with two MnO6 octahedra, a cornercorner with one AlO5 square pyramid, and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 48–49°. There are a spread of Al–O bond distances ranging from 1.81–2.43 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 AlO6 octahedra, corners with two equivalent MnO6 octahedra, corners with two equivalent FeO6 octahedra, and a cornercorner with one AlO5 square pyramid. The corner-sharing octahedra tilt angles range from 43–62°. 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 AlO6 octahedra, corners with four MnO6 octahedra, and a cornercorner with one AlO5 square pyramid. The corner-sharing octahedra tilt angles range from 44–63°. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. There are eight inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the fifth H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.08 Å) and one longer (1.43 Å) H–O bond length. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the seventh H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.05 Å) and one longer (1.49 Å) H–O bond length. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to one Fe2+, one Al3+, and one H1+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to one Mn2+, one Al3+, and one H1+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to one Mn2+, one Al3+, and one H1+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Mn2+, one Al3+, and one H1+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Al3+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Al3+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Al3+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Al3+ and one P5+ atom. In the ninth O2- site, O2- is bonded in a 3-coordinate geometry to one Mn2+, one Fe2+, and one P5+ atom. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to two Mn2+ and one P5+ atom. In the eleventh O2- site, O2- is bonded in a distorted water-like geometry to two Al3+ and two H1+ atoms. In the twelfth O2- site, O2- is bonded in a distorted water-like geometry to one Al3+ and two H1+ atoms. In the thirteenth O2- site, O2- is bonded in a 2-coordinate geometry to one Mn2+, one Fe2+, one P5+, and one H1+ atom. In the fourteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Mn2+, one P5+, and one H1+ atom.