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Title: Materials Data on Na2CaPO4F by Materials Project

Abstract

Na2CaPO4F crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are four inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 6-coordinate geometry to four O2- and two F1- atoms. There are a spread of Na–O bond distances ranging from 2.36–2.46 Å. There are one shorter (2.36 Å) and one longer (2.48 Å) Na–F bond lengths. In the second Na1+ site, Na1+ is bonded in a 6-coordinate geometry to four O2- and two F1- atoms. There are a spread of Na–O bond distances ranging from 2.36–2.50 Å. There are one shorter (2.34 Å) and one longer (2.45 Å) Na–F bond lengths. In the third Na1+ site, Na1+ is bonded to four O2- and two F1- atoms to form distorted NaO4F2 octahedra that share a cornercorner with one CaO4F2 octahedra, corners with two equivalent CaO5F2 pentagonal bipyramids, corners with four PO4 tetrahedra, an edgeedge with one CaO4F2 octahedra, and a faceface with one CaO5F2 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 13°. There are a spread of Na–O bond distances ranging from 2.35–2.52 Å. There are one shorter (2.37 Å) and one longer (2.38 Å) Na–F bond lengths. In the fourth Na1+ site,more » Na1+ is bonded in a 6-coordinate geometry to four O2- and two F1- atoms. There are a spread of Na–O bond distances ranging from 2.38–2.53 Å. There are one shorter (2.45 Å) and one longer (2.54 Å) Na–F bond lengths. There are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to five O2- and two F1- atoms to form distorted CaO5F2 pentagonal bipyramids that share a cornercorner with one CaO4F2 octahedra, corners with two equivalent NaO4F2 octahedra, corners with three PO4 tetrahedra, an edgeedge with one CaO4F2 octahedra, an edgeedge with one PO4 tetrahedra, and a faceface with one NaO4F2 octahedra. The corner-sharing octahedra tilt angles range from 9–73°. There are a spread of Ca–O bond distances ranging from 2.33–2.59 Å. There are one shorter (2.35 Å) and one longer (2.40 Å) Ca–F bond lengths. In the second Ca2+ site, Ca2+ is bonded to four O2- and two F1- atoms to form distorted CaO4F2 octahedra that share a cornercorner with one NaO4F2 octahedra, a cornercorner with one CaO5F2 pentagonal bipyramid, corners with four PO4 tetrahedra, an edgeedge with one NaO4F2 octahedra, and an edgeedge with one CaO5F2 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 13°. There are a spread of Ca–O bond distances ranging from 2.35–2.40 Å. There are one shorter (2.31 Å) and one longer (2.32 Å) Ca–F bond lengths. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one CaO4F2 octahedra, corners with three equivalent NaO4F2 octahedra, corners with two equivalent CaO5F2 pentagonal bipyramids, and an edgeedge with one CaO5F2 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 52–69°. There are a spread of P–O bond distances ranging from 1.55–1.57 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one NaO4F2 octahedra, corners with three equivalent CaO4F2 octahedra, and a cornercorner with one CaO5F2 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 46–66°. There is three shorter (1.56 Å) and one longer (1.57 Å) P–O bond length. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Na1+, one Ca2+, and one P5+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one Ca2+, and one P5+ atom. In the third O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Na1+, one Ca2+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to two Na1+, one Ca2+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Na1+, two Ca2+, and one P5+ atom. In the sixth O2- site, O2- is bonded to two Na1+, one Ca2+, and one P5+ atom to form distorted ONa2CaP tetrahedra that share corners with six FNa4Ca2 octahedra. The corner-sharing octahedra tilt angles range from 4–74°. In the seventh O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Na1+, one Ca2+, and one P5+ atom. In the eighth O2- site, O2- is bonded to two Na1+, one Ca2+, and one P5+ atom to form ONa2CaP tetrahedra that share corners with six FNa4Ca2 octahedra. The corner-sharing octahedra tilt angles range from 6–65°. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded to four Na1+ and two Ca2+ atoms to form distorted FNa4Ca2 octahedra that share corners with six ONa2CaP tetrahedra and faces with two equivalent FNa4Ca2 octahedra. In the second F1- site, F1- is bonded to four Na1+ and two Ca2+ atoms to form FNa4Ca2 octahedra that share corners with six ONa2CaP tetrahedra and faces with two equivalent FNa4Ca2 octahedra.« less

Authors:
Contributors:
Researcher:
Publication Date:
Other Number(s):
mp-559376
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Product Type:
Dataset
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; Na2CaPO4F; Ca-F-Na-O-P
OSTI Identifier:
1270830
DOI:
10.17188/1270830

Citation Formats

Persson, Kristin, and Project, Materials. Materials Data on Na2CaPO4F by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1270830.
Persson, Kristin, & Project, Materials. Materials Data on Na2CaPO4F by Materials Project. United States. doi:10.17188/1270830.
Persson, Kristin, and Project, Materials. 2020. "Materials Data on Na2CaPO4F by Materials Project". United States. doi:10.17188/1270830. https://www.osti.gov/servlets/purl/1270830. Pub date:Wed Jul 15 00:00:00 EDT 2020
@article{osti_1270830,
title = {Materials Data on Na2CaPO4F by Materials Project},
author = {Persson, Kristin and Project, Materials},
abstractNote = {Na2CaPO4F crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are four inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 6-coordinate geometry to four O2- and two F1- atoms. There are a spread of Na–O bond distances ranging from 2.36–2.46 Å. There are one shorter (2.36 Å) and one longer (2.48 Å) Na–F bond lengths. In the second Na1+ site, Na1+ is bonded in a 6-coordinate geometry to four O2- and two F1- atoms. There are a spread of Na–O bond distances ranging from 2.36–2.50 Å. There are one shorter (2.34 Å) and one longer (2.45 Å) Na–F bond lengths. In the third Na1+ site, Na1+ is bonded to four O2- and two F1- atoms to form distorted NaO4F2 octahedra that share a cornercorner with one CaO4F2 octahedra, corners with two equivalent CaO5F2 pentagonal bipyramids, corners with four PO4 tetrahedra, an edgeedge with one CaO4F2 octahedra, and a faceface with one CaO5F2 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 13°. There are a spread of Na–O bond distances ranging from 2.35–2.52 Å. There are one shorter (2.37 Å) and one longer (2.38 Å) Na–F bond lengths. In the fourth Na1+ site, Na1+ is bonded in a 6-coordinate geometry to four O2- and two F1- atoms. There are a spread of Na–O bond distances ranging from 2.38–2.53 Å. There are one shorter (2.45 Å) and one longer (2.54 Å) Na–F bond lengths. There are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to five O2- and two F1- atoms to form distorted CaO5F2 pentagonal bipyramids that share a cornercorner with one CaO4F2 octahedra, corners with two equivalent NaO4F2 octahedra, corners with three PO4 tetrahedra, an edgeedge with one CaO4F2 octahedra, an edgeedge with one PO4 tetrahedra, and a faceface with one NaO4F2 octahedra. The corner-sharing octahedra tilt angles range from 9–73°. There are a spread of Ca–O bond distances ranging from 2.33–2.59 Å. There are one shorter (2.35 Å) and one longer (2.40 Å) Ca–F bond lengths. In the second Ca2+ site, Ca2+ is bonded to four O2- and two F1- atoms to form distorted CaO4F2 octahedra that share a cornercorner with one NaO4F2 octahedra, a cornercorner with one CaO5F2 pentagonal bipyramid, corners with four PO4 tetrahedra, an edgeedge with one NaO4F2 octahedra, and an edgeedge with one CaO5F2 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 13°. There are a spread of Ca–O bond distances ranging from 2.35–2.40 Å. There are one shorter (2.31 Å) and one longer (2.32 Å) Ca–F bond lengths. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one CaO4F2 octahedra, corners with three equivalent NaO4F2 octahedra, corners with two equivalent CaO5F2 pentagonal bipyramids, and an edgeedge with one CaO5F2 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 52–69°. There are a spread of P–O bond distances ranging from 1.55–1.57 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one NaO4F2 octahedra, corners with three equivalent CaO4F2 octahedra, and a cornercorner with one CaO5F2 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 46–66°. There is three shorter (1.56 Å) and one longer (1.57 Å) P–O bond length. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Na1+, one Ca2+, and one P5+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one Ca2+, and one P5+ atom. In the third O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Na1+, one Ca2+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to two Na1+, one Ca2+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Na1+, two Ca2+, and one P5+ atom. In the sixth O2- site, O2- is bonded to two Na1+, one Ca2+, and one P5+ atom to form distorted ONa2CaP tetrahedra that share corners with six FNa4Ca2 octahedra. The corner-sharing octahedra tilt angles range from 4–74°. In the seventh O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Na1+, one Ca2+, and one P5+ atom. In the eighth O2- site, O2- is bonded to two Na1+, one Ca2+, and one P5+ atom to form ONa2CaP tetrahedra that share corners with six FNa4Ca2 octahedra. The corner-sharing octahedra tilt angles range from 6–65°. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded to four Na1+ and two Ca2+ atoms to form distorted FNa4Ca2 octahedra that share corners with six ONa2CaP tetrahedra and faces with two equivalent FNa4Ca2 octahedra. In the second F1- site, F1- is bonded to four Na1+ and two Ca2+ atoms to form FNa4Ca2 octahedra that share corners with six ONa2CaP tetrahedra and faces with two equivalent FNa4Ca2 octahedra.},
doi = {10.17188/1270830},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}

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