DOI: 10.17188/1753828
title: Materials Data on CsNa3P4(H2O5)3 by Materials Project

description: CsNa3P4(H2O5)3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Cs1+ is bonded in a 5-coordinate geometry to two H1+ and nine O2- atoms. There are one shorter (3.44 Å) and one longer (3.45 Å) Cs–H bond lengths. There are a spread of Cs–O bond distances ranging from 3.08–3.68 Å. There are four inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to six O2- atoms to form distorted NaO6 octahedra that share corners with four PO4 tetrahedra. There are four shorter (2.42 Å) and two longer (2.68 Å) Na–O bond lengths. In the second Na1+ site, Na1+ is bonded to six O2- atoms to form distorted NaO6 octahedra that share corners with four PO4 tetrahedra and faces with two equivalent NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.37–2.65 Å. In the third Na1+ site, Na1+ is bonded to six O2- atoms to form NaO6 octahedra that share corners with four PO4 tetrahedra and a faceface with one NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.30–2.54 Å. In the fourth Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.33–2.76 Å. There are four inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two NaO6 octahedra and corners with two equivalent PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 49–55°. There are a spread of P–O bond distances ranging from 1.49–1.64 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three NaO6 octahedra and corners with two equivalent PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 41–55°. There are a spread of P–O bond distances ranging from 1.50–1.63 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two NaO6 octahedra and corners with two equivalent PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 47–48°. There are a spread of P–O bond distances ranging from 1.49–1.64 Å. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one NaO6 octahedra and corners with two equivalent PO4 tetrahedra. The corner-sharing octahedral tilt angles are 63°. There are a spread of P–O bond distances ranging from 1.49–1.62 Å. There are six inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one Cs1+ and 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 0.97 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one Cs1+ and one O2- atom. The H–O bond length is 0.99 Å. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 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. There are fifteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one Cs1+, one Na1+, and one P5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two Na1+ and one P5+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to one Cs1+, two Na1+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to one Cs1+, one Na1+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the sixth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+ and two P5+ atoms. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to one Cs1+, two Na1+, and one P5+ atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one Cs1+ and one P5+ atom. In the ninth O2- site, O2- is bonded in a 1-coordinate geometry to one Cs1+, one Na1+, and one P5+ atom. In the tenth O2- site, O2- is bonded in a 1-coordinate geometry to one Cs1+, two Na1+, and one P5+ atom. In the eleventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Na1+ and two P5+ atoms. In the twelfth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+ and two P5+ atoms. In the thirteenth O2- site, O2- is bonded in a distorted water-like geometry to two Na1+ and two H1+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted water-like geometry to two Na1+ and two H1+ atoms. In the fifteenth O2- site, O2- is bonded in a distorted water-like geometry to two Na1+ and two H1+ atoms.