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Title: Materials Data on Ca19Mg2(PO4)14 by Materials Project

Abstract

Ca19Mg2(PO4)14 crystallizes in the trigonal R3 space group. The structure is three-dimensional. there are seven inequivalent Ca sites. In the first Ca site, Ca is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.38–2.71 Å. In the second Ca site, Ca is bonded in a 9-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.44–2.71 Å. In the third Ca site, Ca is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.37–2.73 Å. In the fourth Ca site, Ca is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.36–2.71 Å. In the fifth Ca site, Ca is bonded in a 7-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.34–2.94 Å. In the sixth Ca site, Ca is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.36–2.84 Å. In the seventh Ca site, Ca is bonded in a 3-coordinate geometry to sixmore » O atoms. There are three shorter (2.38 Å) and three longer (2.65 Å) Ca–O bond lengths. There are two inequivalent Mg sites. In the first Mg site, Mg is bonded to six O atoms to form MgO6 octahedra that share corners with six PO4 tetrahedra. All Mg–O bond lengths are 2.10 Å. In the second Mg site, Mg is bonded to six O atoms to form MgO6 octahedra that share corners with six PO4 tetrahedra. There are three shorter (2.09 Å) and three longer (2.11 Å) Mg–O bond lengths. There are six inequivalent P sites. In the first P site, P is bonded in a tetrahedral geometry to four O atoms. There is one shorter (1.52 Å) and three longer (1.57 Å) P–O bond length. In the second P site, P is bonded in a tetrahedral geometry to four O atoms. There is three shorter (1.55 Å) and one longer (1.57 Å) P–O bond length. In the third P site, P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one MgO6 octahedra. The corner-sharing octahedral tilt angles are 39°. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. In the fourth P site, P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one MgO6 octahedra. The corner-sharing octahedral tilt angles are 44°. There are a spread of P–O bond distances ranging from 1.54–1.58 Å. In the fifth P site, P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one MgO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There is three shorter (1.55 Å) and one longer (1.56 Å) P–O bond length. In the sixth P site, P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one MgO6 octahedra. The corner-sharing octahedral tilt angles are 51°. There is three shorter (1.55 Å) and one longer (1.56 Å) P–O bond length. There are twenty inequivalent O sites. In the first O site, O is bonded in a distorted single-bond geometry to three equivalent Ca and one P atom. In the second O site, O is bonded in a distorted tetrahedral geometry to three equivalent Ca and one P atom. In the third O site, O is bonded in a distorted single-bond geometry to three Ca and one P atom. In the fourth O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the fifth O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the sixth O site, O is bonded in a 3-coordinate geometry to two Ca and one P atom. In the seventh O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the eighth O site, O is bonded in a 4-coordinate geometry to three Ca and one P atom. In the ninth O site, O is bonded in a 4-coordinate geometry to three Ca and one P atom. In the tenth O site, O is bonded in a 3-coordinate geometry to two Ca and one P atom. In the eleventh O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the twelfth O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the thirteenth O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the fourteenth O site, O is bonded in a 4-coordinate geometry to three Ca and one P atom. In the fifteenth O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the sixteenth O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the seventeenth O site, O is bonded in a 4-coordinate geometry to two equivalent Ca, one Mg, and one P atom. In the eighteenth O site, O is bonded in a 4-coordinate geometry to two equivalent Ca, one Mg, and one P atom. In the nineteenth O site, O is bonded in a 4-coordinate geometry to two equivalent Ca, one Mg, and one P atom. In the twentieth O site, O is bonded in a 4-coordinate geometry to two equivalent Ca, one Mg, and one P atom.« less

Authors:
Publication Date:
Other Number(s):
mp-1228644
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; Ca19Mg2(PO4)14; Ca-Mg-O-P
OSTI Identifier:
1740197
DOI:
https://doi.org/10.17188/1740197

Citation Formats

The Materials Project. Materials Data on Ca19Mg2(PO4)14 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1740197.
The Materials Project. Materials Data on Ca19Mg2(PO4)14 by Materials Project. United States. doi:https://doi.org/10.17188/1740197
The Materials Project. 2020. "Materials Data on Ca19Mg2(PO4)14 by Materials Project". United States. doi:https://doi.org/10.17188/1740197. https://www.osti.gov/servlets/purl/1740197. Pub date:Wed Apr 29 00:00:00 EDT 2020
@article{osti_1740197,
title = {Materials Data on Ca19Mg2(PO4)14 by Materials Project},
author = {The Materials Project},
abstractNote = {Ca19Mg2(PO4)14 crystallizes in the trigonal R3 space group. The structure is three-dimensional. there are seven inequivalent Ca sites. In the first Ca site, Ca is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.38–2.71 Å. In the second Ca site, Ca is bonded in a 9-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.44–2.71 Å. In the third Ca site, Ca is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.37–2.73 Å. In the fourth Ca site, Ca is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.36–2.71 Å. In the fifth Ca site, Ca is bonded in a 7-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.34–2.94 Å. In the sixth Ca site, Ca is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Ca–O bond distances ranging from 2.36–2.84 Å. In the seventh Ca site, Ca is bonded in a 3-coordinate geometry to six O atoms. There are three shorter (2.38 Å) and three longer (2.65 Å) Ca–O bond lengths. There are two inequivalent Mg sites. In the first Mg site, Mg is bonded to six O atoms to form MgO6 octahedra that share corners with six PO4 tetrahedra. All Mg–O bond lengths are 2.10 Å. In the second Mg site, Mg is bonded to six O atoms to form MgO6 octahedra that share corners with six PO4 tetrahedra. There are three shorter (2.09 Å) and three longer (2.11 Å) Mg–O bond lengths. There are six inequivalent P sites. In the first P site, P is bonded in a tetrahedral geometry to four O atoms. There is one shorter (1.52 Å) and three longer (1.57 Å) P–O bond length. In the second P site, P is bonded in a tetrahedral geometry to four O atoms. There is three shorter (1.55 Å) and one longer (1.57 Å) P–O bond length. In the third P site, P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one MgO6 octahedra. The corner-sharing octahedral tilt angles are 39°. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. In the fourth P site, P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one MgO6 octahedra. The corner-sharing octahedral tilt angles are 44°. There are a spread of P–O bond distances ranging from 1.54–1.58 Å. In the fifth P site, P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one MgO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There is three shorter (1.55 Å) and one longer (1.56 Å) P–O bond length. In the sixth P site, P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one MgO6 octahedra. The corner-sharing octahedral tilt angles are 51°. There is three shorter (1.55 Å) and one longer (1.56 Å) P–O bond length. There are twenty inequivalent O sites. In the first O site, O is bonded in a distorted single-bond geometry to three equivalent Ca and one P atom. In the second O site, O is bonded in a distorted tetrahedral geometry to three equivalent Ca and one P atom. In the third O site, O is bonded in a distorted single-bond geometry to three Ca and one P atom. In the fourth O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the fifth O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the sixth O site, O is bonded in a 3-coordinate geometry to two Ca and one P atom. In the seventh O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the eighth O site, O is bonded in a 4-coordinate geometry to three Ca and one P atom. In the ninth O site, O is bonded in a 4-coordinate geometry to three Ca and one P atom. In the tenth O site, O is bonded in a 3-coordinate geometry to two Ca and one P atom. In the eleventh O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the twelfth O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the thirteenth O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the fourteenth O site, O is bonded in a 4-coordinate geometry to three Ca and one P atom. In the fifteenth O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the sixteenth O site, O is bonded in a 1-coordinate geometry to three Ca and one P atom. In the seventeenth O site, O is bonded in a 4-coordinate geometry to two equivalent Ca, one Mg, and one P atom. In the eighteenth O site, O is bonded in a 4-coordinate geometry to two equivalent Ca, one Mg, and one P atom. In the nineteenth O site, O is bonded in a 4-coordinate geometry to two equivalent Ca, one Mg, and one P atom. In the twentieth O site, O is bonded in a 4-coordinate geometry to two equivalent Ca, one Mg, and one P atom.},
doi = {10.17188/1740197},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}