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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Na6TeP6(H2O5)6 by Materials Project

Na6P6Te(H2O5)6 crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. there are two inequivalent Na sites. In the first Na site, Na is bonded to six O atoms to form distorted NaO6 pentagonal pyramids that share corners with four equivalent PO4 tetrahedra, edges with two equivalent NaO6 pentagonal pyramids, and faces with two equivalent NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.32–2.54 Å. In the second Na site, Na is bonded to six O atoms to form distorted NaO6 octahedra that share corners with two equivalent TeO6 octahedra, corners with two equivalent PO4 tetrahedra, and faces with two equivalent NaO6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 39°. There are a spread of Na–O bond distances ranging from 2.38–2.53 Å. P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one NaO6 octahedra, corners with two equivalent NaO6 pentagonal pyramids, and corners with two equivalent PO4 tetrahedra. The corner-sharing octahedral tilt angles are 46°. There are a spread of P–O bond distances ranging from 1.50–1.63 Å. There are two inequivalent H sites. In the first H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the second H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. Te is bonded to six equivalent O atoms to form TeO6 octahedra that share corners with six equivalent NaO6 octahedra. The corner-sharing octahedral tilt angles are 39°. All Te–O bond lengths are 1.95 Å. There are six inequivalent O sites. In the first O site, O is bonded in a distorted water-like geometry to two Na and two equivalent H atoms. In the second O site, O is bonded in an L-shaped geometry to two Na atoms. In the third O site, O is bonded in a distorted single-bond geometry to one P atom. In the fourth O site, O is bonded in a distorted rectangular see-saw-like geometry to three Na and one P atom. In the fifth O site, O is bonded in a 1-coordinate geometry to one Na, one H, and one Te atom. In the sixth O site, O is bonded in a bent 120 degrees geometry to two equivalent P atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na2TePH3O11 by Materials Project

Na2PH3TeO11 crystallizes in the hexagonal P6_3 space group. The structure is three-dimensional. there are two inequivalent Na sites. In the first Na site, Na is bonded to six O atoms to form NaO6 octahedra that share corners with three equivalent TeO6 octahedra and corners with three equivalent PO4 tetrahedra. The corner-sharing octahedral tilt angles are 24°. There are three shorter (2.45 Å) and three longer (2.49 Å) Na–O bond lengths. In the second Na site, Na is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Na–O bond distances ranging from 2.36–2.54 Å. P is bonded to four O atoms to form PO4 tetrahedra that share corners with three equivalent NaO6 octahedra. The corner-sharing octahedral tilt angles are 57°. There is three shorter (1.54 Å) and one longer (1.60 Å) P–O bond length. H is bonded in a linear geometry to two O atoms. There is one shorter (1.05 Å) and one longer (1.48 Å) H–O bond length. Te is bonded to six O atoms to form TeO6 octahedra that share corners with three equivalent NaO6 octahedra. The corner-sharing octahedral tilt angles are 24°. There is three shorter (1.93 Å) and three longer (1.94 Å) Te–O bond length. There are five inequivalent O sites. In the first O site, O is bonded in a water-like geometry to one Na and one Te atom. In the second O site, O is bonded in a trigonal non-coplanar geometry to one Na and three equivalent H atoms. In the third O site, O is bonded in a single-bond geometry to one P atom. In the fourth O site, O is bonded in a distorted trigonal planar geometry to one Na, one P, and one H atom. In the fifth O site, O is bonded in a distorted T-shaped geometry to two Na and one Te atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na6TeP6(H3O5)6 by Materials Project

Na6P6Te(H3O5)6 crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to six O2- atoms to form distorted NaO6 octahedra that share corners with two equivalent TeO6 octahedra, corners with two equivalent PO4 tetrahedra, and faces with two equivalent NaO6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 40°. There are a spread of Na–O bond distances ranging from 2.40–2.54 Å. In the second Na1+ site, Na1+ is bonded to six O2- atoms to form distorted NaO6 pentagonal pyramids that share corners with four equivalent PO4 tetrahedra, edges with two equivalent NaO6 pentagonal pyramids, and faces with two equivalent NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.41–2.52 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one NaO6 octahedra, corners with two equivalent NaO6 pentagonal pyramids, and corners with two equivalent PO4 tetrahedra. The corner-sharing octahedral tilt angles are 44°. There is two shorter (1.50 Å) and two longer (1.63 Å) P–O bond length. There are three 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 0.99 Å. Te6+ is bonded to six equivalent O2- atoms to form TeO6 octahedra that share corners with six equivalent NaO6 octahedra. The corner-sharing octahedral tilt angles are 40°. All Te–O bond lengths are 1.95 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to two Na1+ and two equivalent H1+ atoms. In the second O2- site, O2- is bonded in a distorted water-like geometry to two Na1+ and two equivalent H1+ atoms. In the third O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Na1+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent P5+ atoms. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one H1+, and one Te6+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one P5+ atom.

36 MATERIALS SCIENCE↗