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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on SnPO4 by Materials Project

SnPO4 crystallizes in the monoclinic P2_1/c space group. The structure is two-dimensional and consists of one SnPO4 sheet oriented in the (1, 0, 0) direction. Sn3+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are a spread of Sn–O bond distances ranging from 2.09–2.24 Å. P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.56–1.58 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted L-shaped geometry to one Sn3+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted L-shaped geometry to one Sn3+ and one P5+ atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to one Sn3+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sn3+ and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnPO4 by Materials Project

SnPO4 crystallizes in the monoclinic P2_1/c space group. The structure is two-dimensional and consists of two SnPO4 sheets oriented in the (0, 1, 0) direction. Sn3+ is bonded to six O2- atoms to form distorted SnO6 pentagonal pyramids that share corners with six equivalent PO4 tetrahedra and edges with two equivalent SnO6 pentagonal pyramids. There are a spread of Sn–O bond distances ranging from 2.26–2.34 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with six equivalent SnO6 pentagonal pyramids. There is two shorter (1.54 Å) and two longer (1.59 Å) P–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Sn3+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sn3+ and one P5+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sn3+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Sn3+ and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnPO4 by Materials Project

SnPO4 crystallizes in the orthorhombic Pna2_1 space group. The structure is three-dimensional. there are two inequivalent Sn3+ sites. In the first Sn3+ site, Sn3+ is bonded in a distorted T-shaped geometry to three O2- atoms. There are two shorter (2.17 Å) and one longer (2.27 Å) Sn–O bond lengths. In the second Sn3+ site, Sn3+ is bonded to five O2- atoms to form distorted SnO5 trigonal bipyramids that share corners with five PO4 tetrahedra. There are a spread of Sn–O bond distances ranging from 2.00–2.07 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent SnO5 trigonal bipyramids. There is two shorter (1.54 Å) and two longer (1.58 Å) P–O bond length. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent SnO5 trigonal bipyramids. There are a spread of P–O bond distances ranging from 1.52–1.59 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one Sn3+ and one P5+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Sn3+ and one P5+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sn3+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sn3+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a bent 120 degrees geometry to one Sn3+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a bent 150 degrees geometry to one Sn3+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Sn3+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a bent 150 degrees geometry to one Sn3+ and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnPO4 by Materials Project

SnPO4 crystallizes in the monoclinic Cc space group. The structure is three-dimensional. there are three inequivalent Sn3+ sites. In the first Sn3+ site, Sn3+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There are a spread of Sn–O bond distances ranging from 2.10–2.18 Å. In the second Sn3+ site, Sn3+ is bonded in a distorted T-shaped geometry to three O2- atoms. There are a spread of Sn–O bond distances ranging from 2.08–2.20 Å. In the third Sn3+ site, Sn3+ is bonded to five O2- atoms to form SnO5 trigonal bipyramids that share corners with five PO4 tetrahedra. There are a spread of Sn–O bond distances ranging from 1.97–2.07 Å. There are three inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent SnO5 trigonal bipyramids. There is three shorter (1.54 Å) and one longer (1.59 Å) P–O bond length. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one SnO5 trigonal bipyramid. There are a spread of P–O bond distances ranging from 1.50–1.61 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent SnO5 trigonal bipyramids. There are a spread of P–O bond distances ranging from 1.54–1.58 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one Sn3+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Sn3+ and one P5+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Sn3+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sn3+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sn3+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sn3+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Sn3+ and one P5+ atom. In the ninth O2- site, O2- is bonded in a bent 120 degrees geometry to one Sn3+ and one P5+ atom. In the tenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sn3+ and one P5+ atom. In the eleventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Sn3+ and one P5+ atom. In the twelfth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sn3+ and one P5+ atom.

36 MATERIALS SCIENCE↗