DOI: 10.17188/1680957
title: Materials Data on Mn5As4(HO2)10 by Materials Project

description: Mn5As4(HO2)10 crystallizes in the monoclinic C2/c 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 MnO6 octahedra that share corners with six AsO4 tetrahedra and edges with two equivalent MnO6 octahedra. There are a spread of Mn–O bond distances ranging from 2.17–2.29 Å. In the second Mn2+ site, Mn2+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent MnO6 octahedra, corners with four AsO4 tetrahedra, and an edgeedge with one MnO6 octahedra. The corner-sharing octahedra tilt angles range from 66–67°. There are a spread of Mn–O bond distances ranging from 2.13–2.36 Å. In the third Mn2+ site, Mn2+ is bonded to six O2- atoms to form distorted MnO6 octahedra that share corners with two equivalent MnO6 octahedra, corners with five AsO4 tetrahedra, and edges with two MnO6 octahedra. The corner-sharing octahedra tilt angles range from 66–67°. There are a spread of Mn–O bond distances ranging from 2.17–2.34 Å. There are two inequivalent As5+ sites. In the first As5+ site, As5+ is bonded to four O2- atoms to form AsO4 tetrahedra that share corners with five MnO6 octahedra. The corner-sharing octahedra tilt angles range from 45–63°. There are a spread of As–O bond distances ranging from 1.70–1.76 Å. In the second As5+ site, As5+ is bonded to four O2- atoms to form AsO4 tetrahedra that share corners with seven MnO6 octahedra. The corner-sharing octahedra tilt angles range from 44–63°. There are a spread of As–O bond distances ranging from 1.71–1.74 Å. There are five inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a distorted linear geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.62 Å) H–O bond length. In the second H1+ site, H1+ is bonded in a single-bond geometry to two O2- atoms. There is one shorter (1.01 Å) and one longer (1.70 Å) H–O bond length. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the fifth 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 ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two Mn2+ and one As5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Mn2+, one As5+, and one H1+ atom. In the third O2- site, O2- is bonded in a distorted water-like geometry to one As5+ and one H1+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Mn2+ and one As5+ atom. In the fifth O2- site, O2- is bonded in a distorted water-like geometry to two Mn2+ and two H1+ atoms. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to one Mn2+, one As5+, and one H1+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Mn2+ and two H1+ atoms. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Mn2+ and one As5+ atom. In the ninth O2- site, O2- is bonded in a trigonal planar geometry to two Mn2+ and one As5+ atom. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to two Mn2+ and one As5+ atom.