Materials Data on NaScP2(HO4)2 by Materials Project

Abstract

NaScP2(HO4)2 crystallizes in the monoclinic Cc space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 7-coordinate geometry to five O2- atoms. There are a spread of Na–O bond distances ranging from 2.37–2.62 Å. In the second 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 2.33–2.79 Å. There are two inequivalent Sc3+ sites. In the first Sc3+ site, Sc3+ is bonded to six O2- atoms to form ScO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Sc–O bond distances ranging from 2.02–2.15 Å. In the second Sc3+ site, Sc3+ is bonded to six O2- atoms to form ScO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Sc–O bond distances ranging from 2.08–2.15 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 three ScO6 octahedra. The corner-sharing octahedra tilt angles range from 34–44°. There are a spread of P–O bond distances ranging from 1.53–1.60 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three ScO6 octahedra. The corner-sharing octahedra tilt angles range from 32–39°. There are a spread of P–O bond distances ranging from 1.53–1.61 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three ScO6 octahedra. The corner-sharing octahedra tilt angles range from 6–37°. There is three shorter (1.53 Å) and one longer (1.61 Å) P–O bond length. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three ScO6 octahedra. The corner-sharing octahedra tilt angles range from 32–43°. There are a spread of P–O bond distances ranging from 1.53–1.60 Å. There are four 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 1.00 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 0.99 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Sc3+, and one P5+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one P5+ and one H1+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Sc3+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Sc3+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one Sc3+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Na1+, one P5+, and one H1+ atom. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Sc3+, and one P5+ atom. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one P5+, and one H1+ atom. In the ninth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Sc3+, and one P5+ atom. In the tenth O2- site, O2- is bonded in a linear geometry to one Sc3+ and one P5+ atom. In the eleventh O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Sc3+, and one P5+ atom. In the twelfth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Sc3+, and one P5+ atom. In the thirteenth O2- site, O2- is bonded in a water-like geometry to one P5+ and one H1+ atom. In the fourteenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Sc3+ and one P5+ atom. In the fifteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+, one Sc3+, and one P5+ atom. In the sixteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Sc3+, and one P5+ atom.