Materials Data on BaZn2As3HO11 by Materials Project
BaZn2As3HO11 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Ba2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ba–O bond distances ranging from 2.68–2.94 Å. There are two inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to five O2- atoms to form ZnO5 trigonal bipyramids that share corners with five AsO4 tetrahedra and a cornercorner with one ZnO5 trigonal bipyramid. There are a spread of Zn–O bond distances ranging from 1.94–2.45 Å. In the second Zn2+ site, Zn2+ is bonded to five O2- atoms to form ZnO5 trigonal bipyramids that share corners with five AsO4 tetrahedra, a cornercorner with one ZnO5 trigonal bipyramid, and an edgeedge with one ZnO5 trigonal bipyramid. There are a spread of Zn–O bond distances ranging from 2.02–2.18 Å. There are three inequivalent As5+ sites. In the first As5+ site, As5+ is bonded to four O2- atoms to form AsO4 tetrahedra that share a cornercorner with one AsO4 tetrahedra and a cornercorner with one ZnO5 trigonal bipyramid. There are a spread of As–O bond distances ranging from 1.67–1.79 Å. In the second As5+ site, As5+ is bonded to four O2- atoms to form AsO4 tetrahedra that share a cornercorner with one AsO4 tetrahedra and corners with three ZnO5 trigonal bipyramids. There are a spread of As–O bond distances ranging from 1.70–1.82 Å. In the third As5+ site, As5+ is bonded to four O2- atoms to form AsO4 tetrahedra that share corners with six ZnO5 trigonal bipyramids. There are a spread of As–O bond distances ranging from 1.72–1.74 Å. H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.01 Å. There are eleven inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Ba2+, one Zn2+, and one As5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Ba2+, one Zn2+, and one As5+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one Ba2+, one Zn2+, and one As5+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Ba2+, one Zn2+, and one As5+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one Ba2+, one Zn2+, and one As5+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to one Ba2+, one Zn2+, and one As5+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two Zn2+ and one As5+ atom. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Zn2+ and one As5+ atom. In the ninth O2- site, O2- is bonded in a distorted water-like geometry to one Ba2+, one As5+, and one H1+ atom. In the tenth O2- site, O2- is bonded in a bent 120 degrees geometry to two As5+ atoms. In the eleventh O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+ and one As5+ atom.