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Title: Materials Data on KCuPO4 by Materials Project

Abstract

KCuPO4 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of K–O bond distances ranging from 2.71–2.91 Å. In the second K1+ site, K1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.69–3.20 Å. There are two inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of Cu–O bond distances ranging from 1.93–2.02 Å. In the second Cu2+ site, Cu2+ is bonded to five O2- atoms to form distorted CuO5 trigonal bipyramids that share corners with three PO4 tetrahedra and an edgeedge with one PO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 1.93–2.37 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 a cornercorner with one CuO5 trigonal bipyramid. There is one shorter (1.55 Å) and three longer (1.56 Å) P–O bond length. Inmore » the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent CuO5 trigonal bipyramids and an edgeedge with one CuO5 trigonal bipyramid. There are a spread of P–O bond distances ranging from 1.52–1.62 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one K1+, one Cu2+, and one P5+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two K1+, one Cu2+, and one P5+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two K1+, one Cu2+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to two K1+, one Cu2+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one K1+, one Cu2+, and one P5+ atom. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent K1+, one Cu2+, and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to two K1+, one Cu2+, and one P5+ atom. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to one K1+, two Cu2+, and one P5+ atom.« less

Authors:
Publication Date:
Other Number(s):
mp-505349
DOE Contract Number:  
AC02-05CH11231; EDCBEE
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)
Collaborations:
MIT; UC Berkeley; Duke; U Louvain
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; KCuPO4; Cu-K-O-P
OSTI Identifier:
1262503
DOI:
https://doi.org/10.17188/1262503

Citation Formats

The Materials Project. Materials Data on KCuPO4 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1262503.
The Materials Project. Materials Data on KCuPO4 by Materials Project. United States. doi:https://doi.org/10.17188/1262503
The Materials Project. 2020. "Materials Data on KCuPO4 by Materials Project". United States. doi:https://doi.org/10.17188/1262503. https://www.osti.gov/servlets/purl/1262503. Pub date:Thu Jun 04 00:00:00 EDT 2020
@article{osti_1262503,
title = {Materials Data on KCuPO4 by Materials Project},
author = {The Materials Project},
abstractNote = {KCuPO4 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of K–O bond distances ranging from 2.71–2.91 Å. In the second K1+ site, K1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.69–3.20 Å. There are two inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of Cu–O bond distances ranging from 1.93–2.02 Å. In the second Cu2+ site, Cu2+ is bonded to five O2- atoms to form distorted CuO5 trigonal bipyramids that share corners with three PO4 tetrahedra and an edgeedge with one PO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 1.93–2.37 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 a cornercorner with one CuO5 trigonal bipyramid. There is one shorter (1.55 Å) and three longer (1.56 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 two equivalent CuO5 trigonal bipyramids and an edgeedge with one CuO5 trigonal bipyramid. There are a spread of P–O bond distances ranging from 1.52–1.62 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one K1+, one Cu2+, and one P5+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two K1+, one Cu2+, and one P5+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two K1+, one Cu2+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to two K1+, one Cu2+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one K1+, one Cu2+, and one P5+ atom. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent K1+, one Cu2+, and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to two K1+, one Cu2+, and one P5+ atom. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to one K1+, two Cu2+, and one P5+ atom.},
doi = {10.17188/1262503},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {6}
}