DOI: 10.17188/1286396
title: Materials Data on Mg3B2P2(H9O10)2 by Materials Project

description: Mg3B2P2(H9O10)2 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of one Mg3B2P2(H9O10)2 sheet oriented in the (0, 0, 1) direction. there are two inequivalent Mg2+ sites. In the first Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with two equivalent BO4 tetrahedra and corners with two equivalent PO4 tetrahedra. There are a spread of Mg–O bond distances ranging from 2.05–2.26 Å. In the second Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with two equivalent BO4 tetrahedra and corners with two equivalent PO4 tetrahedra. There are a spread of Mg–O bond distances ranging from 2.07–2.15 Å. B3+ is bonded to four O2- atoms to form BO4 tetrahedra that share corners with three MgO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 43–53°. There are a spread of B–O bond distances ranging from 1.46–1.51 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three MgO6 octahedra and a cornercorner with one BO4 tetrahedra. The corner-sharing octahedra tilt angles range from 46–56°. There are a spread of P–O bond distances ranging from 1.53–1.58 Å. There are nine 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 0.99 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the third 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 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. In the sixth 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 seventh H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.01 Å) and one longer (1.63 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 0.99 Å. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to one Mg2+, one P5+, and one H1+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Mg2+ and one P5+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Mg2+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one B3+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to one Mg2+, one B3+, and one H1+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to one Mg2+, one B3+, and one H1+ atom. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to one Mg2+, one B3+, and one H1+ atom. In the eighth O2- site, O2- is bonded in a distorted water-like geometry to one Mg2+ and two H1+ atoms. In the ninth O2- site, O2- is bonded in a distorted water-like geometry to one Mg2+ and two H1+ atoms. In the tenth O2- site, O2- is bonded in a distorted water-like geometry to one Mg2+ and two H1+ atoms.