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Title: Materials Data on Na2PHO4 by Materials Project

Abstract

Na2HPO4 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Na–O bond distances ranging from 2.32–2.80 Å. In the second Na1+ site, Na1+ is bonded to six O2- atoms to form distorted NaO6 octahedra that share corners with six equivalent PO4 tetrahedra and edges with two equivalent NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.33–2.58 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with six equivalent NaO6 octahedra. The corner-sharing octahedra tilt angles range from 42–52°. There are a spread of P–O bond distances ranging from 1.52–1.65 Å. H1+ is bonded in a distorted linear geometry to two O2- atoms. There is one shorter (1.03 Å) and one longer (1.58 Å) H–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to two Na1+, one P5+, and one H1+ atom. In the second O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Na1+, onemore » P5+, and one H1+ atom. In the third O2- site, O2- is bonded to three Na1+ and one P5+ atom to form distorted corner-sharing ONa3P trigonal pyramids. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to four Na1+ and one P5+ atom.« less

Publication Date:
Other Number(s):
mp-1221345
DOE Contract Number:  
AC02-05CH11231
Research Org.:
LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Collaborations:
The Materials Project; MIT; UC Berkeley; Duke; U Louvain
Subject:
36 MATERIALS SCIENCE; H-Na-O-P; Na2PHO4; crystal structure
OSTI Identifier:
1699134
DOI:
https://doi.org/10.17188/1699134

Citation Formats

Materials Data on Na2PHO4 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1699134.
Materials Data on Na2PHO4 by Materials Project. United States. doi:https://doi.org/10.17188/1699134
2020. "Materials Data on Na2PHO4 by Materials Project". United States. doi:https://doi.org/10.17188/1699134. https://www.osti.gov/servlets/purl/1699134. Pub date:Sun May 03 00:00:00 EDT 2020
@article{osti_1699134,
title = {Materials Data on Na2PHO4 by Materials Project},
abstractNote = {Na2HPO4 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Na–O bond distances ranging from 2.32–2.80 Å. In the second Na1+ site, Na1+ is bonded to six O2- atoms to form distorted NaO6 octahedra that share corners with six equivalent PO4 tetrahedra and edges with two equivalent NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.33–2.58 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with six equivalent NaO6 octahedra. The corner-sharing octahedra tilt angles range from 42–52°. There are a spread of P–O bond distances ranging from 1.52–1.65 Å. H1+ is bonded in a distorted linear geometry to two O2- atoms. There is one shorter (1.03 Å) and one longer (1.58 Å) H–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to two Na1+, one P5+, and one H1+ atom. In the second O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Na1+, one P5+, and one H1+ atom. In the third O2- site, O2- is bonded to three Na1+ and one P5+ atom to form distorted corner-sharing ONa3P trigonal pyramids. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to four Na1+ and one P5+ atom.},
doi = {10.17188/1699134},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}