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Title: Materials Data on Ca6Al3(Si4N9)2 by Materials Project

Abstract

Ca6Al3(Si4N9)2 is Chalcostibite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 6-coordinate geometry to six N+2.94- atoms. There are a spread of Ca–N bond distances ranging from 2.30–2.98 Å. In the second Ca2+ site, Ca2+ is bonded in a 5-coordinate geometry to five N+2.94- atoms. There are a spread of Ca–N bond distances ranging from 2.35–2.62 Å. In the third Ca2+ site, Ca2+ is bonded in a 7-coordinate geometry to seven N+2.94- atoms. There are a spread of Ca–N bond distances ranging from 2.27–2.87 Å. In the fourth Ca2+ site, Ca2+ is bonded in a 5-coordinate geometry to five N+2.94- atoms. There are a spread of Ca–N bond distances ranging from 2.39–2.71 Å. In the fifth Ca2+ site, Ca2+ is bonded in a 5-coordinate geometry to five N+2.94- atoms. There are a spread of Ca–N bond distances ranging from 2.54–2.59 Å. In the sixth Ca2+ site, Ca2+ is bonded in a 7-coordinate geometry to six N+2.94- atoms. There are a spread of Ca–N bond distances ranging from 2.41–2.95 Å. There are three inequivalent Al3+ sites. In the first Al3+more » site, Al3+ is bonded to four N+2.94- atoms to form AlN4 tetrahedra that share corners with two AlN4 tetrahedra and corners with five SiN4 tetrahedra. There are a spread of Al–N bond distances ranging from 1.85–1.92 Å. In the second Al3+ site, Al3+ is bonded to four N+2.94- atoms to form AlN4 tetrahedra that share a cornercorner with one AlN4 tetrahedra and corners with six SiN4 tetrahedra. There are a spread of Al–N bond distances ranging from 1.85–1.90 Å. In the third Al3+ site, Al3+ is bonded to four N+2.94- atoms to form AlN4 tetrahedra that share a cornercorner with one AlN4 tetrahedra and corners with six SiN4 tetrahedra. There are a spread of Al–N bond distances ranging from 1.86–1.91 Å. There are eight inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share a cornercorner with one AlN4 tetrahedra and corners with five SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.70–1.83 Å. In the second Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share a cornercorner with one AlN4 tetrahedra and corners with five SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.70–1.82 Å. In the third Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share corners with two AlN4 tetrahedra and corners with four SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.69–1.84 Å. In the fourth Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share corners with three AlN4 tetrahedra and corners with four SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.73–1.81 Å. In the fifth Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share corners with two AlN4 tetrahedra and corners with four SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.71–1.80 Å. In the sixth Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share corners with two AlN4 tetrahedra and corners with four SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.69–1.83 Å. In the seventh Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share corners with three AlN4 tetrahedra and corners with three SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.71–1.80 Å. In the eighth Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share corners with three AlN4 tetrahedra and corners with three SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.71–1.82 Å. There are eighteen inequivalent N+2.94- sites. In the first N+2.94- site, N+2.94- is bonded in a 2-coordinate geometry to three Ca2+, one Al3+, and one Si4+ atom. In the second N+2.94- site, N+2.94- is bonded in a 6-coordinate geometry to four Ca2+ and two Si4+ atoms. In the third N+2.94- site, N+2.94- is bonded in a 2-coordinate geometry to three Ca2+ and two Si4+ atoms. In the fourth N+2.94- site, N+2.94- is bonded in a 2-coordinate geometry to four Ca2+, one Al3+, and one Si4+ atom. In the fifth N+2.94- site, N+2.94- is bonded in a distorted see-saw-like geometry to three Ca2+ and one Si4+ atom. In the sixth N+2.94- site, N+2.94- is bonded to three Ca2+, one Al3+, and one Si4+ atom to form distorted NCa3AlSi trigonal bipyramids that share a cornercorner with one NCaAl2Si tetrahedra, corners with five NCaAl2Si trigonal pyramids, and edges with two NCaAlSi2 trigonal pyramids. In the seventh N+2.94- site, N+2.94- is bonded in a 4-coordinate geometry to two Ca2+ and two Si4+ atoms. In the eighth N+2.94- site, N+2.94- is bonded to one Ca2+, two Al3+, and one Si4+ atom to form distorted NCaAl2Si tetrahedra that share a cornercorner with one NCa3AlSi trigonal bipyramid and corners with six NCaAlSi2 trigonal pyramids. In the ninth N+2.94- site, N+2.94- is bonded to one Ca2+, one Al3+, and two Si4+ atoms to form NCaAlSi2 trigonal pyramids that share a cornercorner with one NCa3AlSi trigonal bipyramid and corners with five NCaAl2Si trigonal pyramids. In the tenth N+2.94- site, N+2.94- is bonded to one Ca2+, one Al3+, and two Si4+ atoms to form distorted NCaAlSi2 trigonal pyramids that share a cornercorner with one NCaAl2Si tetrahedra, a cornercorner with one NCa3AlSi trigonal bipyramid, and corners with four NCaAl2Si trigonal pyramids. In the eleventh N+2.94- site, N+2.94- is bonded in a distorted trigonal non-coplanar geometry to one Ca2+ and two Si4+ atoms. In the twelfth N+2.94- site, N+2.94- is bonded to one Ca2+, one Al3+, and two Si4+ atoms to form NCaAlSi2 trigonal pyramids that share a cornercorner with one NCaAl2Si tetrahedra, a cornercorner with one NCa3AlSi trigonal bipyramid, and corners with five NCaAlSi2 trigonal pyramids. In the thirteenth N+2.94- site, N+2.94- is bonded to one Ca2+, one Al3+, and two Si4+ atoms to form distorted NCaAlSi2 trigonal pyramids that share a cornercorner with one NCaAl2Si tetrahedra, corners with four NCaAlSi2 trigonal pyramids, and an edgeedge with one NCa3AlSi trigonal bipyramid. In the fourteenth N+2.94- site, N+2.94- is bonded to one Ca2+ and three Si4+ atoms to form distorted NCaSi3 trigonal pyramids that share a cornercorner with one NCa3AlSi trigonal bipyramid and corners with four NCaAlSi2 trigonal pyramids. In the fifteenth N+2.94- site, N+2.94- is bonded to one Ca2+ and three Si4+ atoms to form distorted NCaSi3 trigonal pyramids that share a cornercorner with one NCaAl2Si tetrahedra and corners with four NCaAlSi2 trigonal pyramids. In the sixteenth N+2.94- site, N+2.94- is bonded to one Ca2+, one Al3+, and two Si4+ atoms to form distorted NCaAlSi2 trigonal pyramids that share a cornercorner with one NCaAl2Si tetrahedra, corners with four NCaAlSi2 trigonal pyramids, and an edgeedge with one NCa3AlSi trigonal bipyramid. In the seventeenth N+2.94- site, N+2.94- is bonded to one Ca2+, two Al3+, and one Si4+ atom to form distorted NCaAl2Si trigonal pyramids that share a cornercorner with one NCaAl2Si tetrahedra, a cornercorner with one NCa3AlSi trigonal bipyramid, and corners with six NCaAlSi2 trigonal pyramids. In the eighteenth N+2.94- site, N+2.94- is bonded in a 3-coordinate geometry to two Ca2+ and two Si4+ atoms.« less

Authors:
Publication Date:
Other Number(s):
mp-1227210
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; Ca6Al3(Si4N9)2; Al-Ca-N-Si
OSTI Identifier:
1663050
DOI:
https://doi.org/10.17188/1663050

Citation Formats

The Materials Project. Materials Data on Ca6Al3(Si4N9)2 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1663050.
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The Materials Project. Materials Data on Ca6Al3(Si4N9)2 by Materials Project. United States. doi:https://doi.org/10.17188/1663050
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The Materials Project. 2020. "Materials Data on Ca6Al3(Si4N9)2 by Materials Project". United States. doi:https://doi.org/10.17188/1663050. https://www.osti.gov/servlets/purl/1663050. Pub date:Wed Jul 15 00:00:00 EDT 2020
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@article{osti_1663050,
title = {Materials Data on Ca6Al3(Si4N9)2 by Materials Project},
author = {The Materials Project},
abstractNote = {Ca6Al3(Si4N9)2 is Chalcostibite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 6-coordinate geometry to six N+2.94- atoms. There are a spread of Ca–N bond distances ranging from 2.30–2.98 Å. In the second Ca2+ site, Ca2+ is bonded in a 5-coordinate geometry to five N+2.94- atoms. There are a spread of Ca–N bond distances ranging from 2.35–2.62 Å. In the third Ca2+ site, Ca2+ is bonded in a 7-coordinate geometry to seven N+2.94- atoms. There are a spread of Ca–N bond distances ranging from 2.27–2.87 Å. In the fourth Ca2+ site, Ca2+ is bonded in a 5-coordinate geometry to five N+2.94- atoms. There are a spread of Ca–N bond distances ranging from 2.39–2.71 Å. In the fifth Ca2+ site, Ca2+ is bonded in a 5-coordinate geometry to five N+2.94- atoms. There are a spread of Ca–N bond distances ranging from 2.54–2.59 Å. In the sixth Ca2+ site, Ca2+ is bonded in a 7-coordinate geometry to six N+2.94- atoms. There are a spread of Ca–N bond distances ranging from 2.41–2.95 Å. There are three inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to four N+2.94- atoms to form AlN4 tetrahedra that share corners with two AlN4 tetrahedra and corners with five SiN4 tetrahedra. There are a spread of Al–N bond distances ranging from 1.85–1.92 Å. In the second Al3+ site, Al3+ is bonded to four N+2.94- atoms to form AlN4 tetrahedra that share a cornercorner with one AlN4 tetrahedra and corners with six SiN4 tetrahedra. There are a spread of Al–N bond distances ranging from 1.85–1.90 Å. In the third Al3+ site, Al3+ is bonded to four N+2.94- atoms to form AlN4 tetrahedra that share a cornercorner with one AlN4 tetrahedra and corners with six SiN4 tetrahedra. There are a spread of Al–N bond distances ranging from 1.86–1.91 Å. There are eight inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share a cornercorner with one AlN4 tetrahedra and corners with five SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.70–1.83 Å. In the second Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share a cornercorner with one AlN4 tetrahedra and corners with five SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.70–1.82 Å. In the third Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share corners with two AlN4 tetrahedra and corners with four SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.69–1.84 Å. In the fourth Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share corners with three AlN4 tetrahedra and corners with four SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.73–1.81 Å. In the fifth Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share corners with two AlN4 tetrahedra and corners with four SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.71–1.80 Å. In the sixth Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share corners with two AlN4 tetrahedra and corners with four SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.69–1.83 Å. In the seventh Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share corners with three AlN4 tetrahedra and corners with three SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.71–1.80 Å. In the eighth Si4+ site, Si4+ is bonded to four N+2.94- atoms to form SiN4 tetrahedra that share corners with three AlN4 tetrahedra and corners with three SiN4 tetrahedra. There are a spread of Si–N bond distances ranging from 1.71–1.82 Å. There are eighteen inequivalent N+2.94- sites. In the first N+2.94- site, N+2.94- is bonded in a 2-coordinate geometry to three Ca2+, one Al3+, and one Si4+ atom. In the second N+2.94- site, N+2.94- is bonded in a 6-coordinate geometry to four Ca2+ and two Si4+ atoms. In the third N+2.94- site, N+2.94- is bonded in a 2-coordinate geometry to three Ca2+ and two Si4+ atoms. In the fourth N+2.94- site, N+2.94- is bonded in a 2-coordinate geometry to four Ca2+, one Al3+, and one Si4+ atom. In the fifth N+2.94- site, N+2.94- is bonded in a distorted see-saw-like geometry to three Ca2+ and one Si4+ atom. In the sixth N+2.94- site, N+2.94- is bonded to three Ca2+, one Al3+, and one Si4+ atom to form distorted NCa3AlSi trigonal bipyramids that share a cornercorner with one NCaAl2Si tetrahedra, corners with five NCaAl2Si trigonal pyramids, and edges with two NCaAlSi2 trigonal pyramids. In the seventh N+2.94- site, N+2.94- is bonded in a 4-coordinate geometry to two Ca2+ and two Si4+ atoms. In the eighth N+2.94- site, N+2.94- is bonded to one Ca2+, two Al3+, and one Si4+ atom to form distorted NCaAl2Si tetrahedra that share a cornercorner with one NCa3AlSi trigonal bipyramid and corners with six NCaAlSi2 trigonal pyramids. In the ninth N+2.94- site, N+2.94- is bonded to one Ca2+, one Al3+, and two Si4+ atoms to form NCaAlSi2 trigonal pyramids that share a cornercorner with one NCa3AlSi trigonal bipyramid and corners with five NCaAl2Si trigonal pyramids. In the tenth N+2.94- site, N+2.94- is bonded to one Ca2+, one Al3+, and two Si4+ atoms to form distorted NCaAlSi2 trigonal pyramids that share a cornercorner with one NCaAl2Si tetrahedra, a cornercorner with one NCa3AlSi trigonal bipyramid, and corners with four NCaAl2Si trigonal pyramids. In the eleventh N+2.94- site, N+2.94- is bonded in a distorted trigonal non-coplanar geometry to one Ca2+ and two Si4+ atoms. In the twelfth N+2.94- site, N+2.94- is bonded to one Ca2+, one Al3+, and two Si4+ atoms to form NCaAlSi2 trigonal pyramids that share a cornercorner with one NCaAl2Si tetrahedra, a cornercorner with one NCa3AlSi trigonal bipyramid, and corners with five NCaAlSi2 trigonal pyramids. In the thirteenth N+2.94- site, N+2.94- is bonded to one Ca2+, one Al3+, and two Si4+ atoms to form distorted NCaAlSi2 trigonal pyramids that share a cornercorner with one NCaAl2Si tetrahedra, corners with four NCaAlSi2 trigonal pyramids, and an edgeedge with one NCa3AlSi trigonal bipyramid. In the fourteenth N+2.94- site, N+2.94- is bonded to one Ca2+ and three Si4+ atoms to form distorted NCaSi3 trigonal pyramids that share a cornercorner with one NCa3AlSi trigonal bipyramid and corners with four NCaAlSi2 trigonal pyramids. In the fifteenth N+2.94- site, N+2.94- is bonded to one Ca2+ and three Si4+ atoms to form distorted NCaSi3 trigonal pyramids that share a cornercorner with one NCaAl2Si tetrahedra and corners with four NCaAlSi2 trigonal pyramids. In the sixteenth N+2.94- site, N+2.94- is bonded to one Ca2+, one Al3+, and two Si4+ atoms to form distorted NCaAlSi2 trigonal pyramids that share a cornercorner with one NCaAl2Si tetrahedra, corners with four NCaAlSi2 trigonal pyramids, and an edgeedge with one NCa3AlSi trigonal bipyramid. In the seventeenth N+2.94- site, N+2.94- is bonded to one Ca2+, two Al3+, and one Si4+ atom to form distorted NCaAl2Si trigonal pyramids that share a cornercorner with one NCaAl2Si tetrahedra, a cornercorner with one NCa3AlSi trigonal bipyramid, and corners with six NCaAlSi2 trigonal pyramids. In the eighteenth N+2.94- site, N+2.94- is bonded in a 3-coordinate geometry to two Ca2+ and two Si4+ atoms.},
doi = {10.17188/1663050},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}
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DOI: https://doi.org/10.17188/1663050
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