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Title: Materials Data on Ca12Al11Si3Cl5O32 by Materials Project

Abstract

Ca12Al11Si3O32Cl5 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twelve inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, corners with four AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, an edgeedge with one SiO4 tetrahedra, and edges with two AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.34–2.64 Å. The Ca–Cl bond length is 2.77 Å. In the second Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, corners with two AlO4 tetrahedra, corners with two SiO4 tetrahedra, edges with four CaClO6 pentagonal bipyramids, and edges with three AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.40–2.51 Å. The Ca–Cl bond length is 2.81 Å. In the third Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with threemore » AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, an edgeedge with one SiO4 tetrahedra, and edges with two AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.38–2.62 Å. The Ca–Cl bond length is 2.76 Å. In the fourth Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, edges with four CaClO6 pentagonal bipyramids, and edges with three AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.37–2.54 Å. The Ca–Cl bond length is 2.82 Å. In the fifth Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, and edges with three AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.37–2.53 Å. The Ca–Cl bond length is 2.81 Å. In the sixth Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, an edgeedge with one SiO4 tetrahedra, and edges with two AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.35–2.57 Å. The Ca–Cl bond length is 2.76 Å. In the seventh Ca2+ site, Ca2+ is bonded in a distorted hexagonal planar geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.56 Å. In the eighth Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, an edgeedge with one SiO4 tetrahedra, and edges with two AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.39–2.60 Å. The Ca–Cl bond length is 2.76 Å. In the ninth Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, corners with four AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, an edgeedge with one SiO4 tetrahedra, and edges with two AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.35–2.60 Å. The Ca–Cl bond length is 2.76 Å. In the tenth Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, an edgeedge with one SiO4 tetrahedra, and edges with two AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.35–2.55 Å. The Ca–Cl bond length is 2.75 Å. In the eleventh Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, and edges with three AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.40–2.64 Å. The Ca–Cl bond length is 2.80 Å. In the twelfth Ca2+ site, Ca2+ is bonded in a distorted hexagonal planar geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.50 Å. There are eleven inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.75–1.80 Å. In the second Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with two CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with three CaClO6 pentagonal bipyramids. There is one shorter (1.75 Å) and three longer (1.79 Å) Al–O bond length. In the third Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, corners with two AlO4 tetrahedra, corners with two SiO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.74–1.80 Å. In the fourth Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, corners with two AlO4 tetrahedra, corners with two SiO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.74–1.79 Å. In the fifth Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with two CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with three CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.74–1.80 Å. In the sixth Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with two CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with three CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.75–1.80 Å. In the seventh Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with four CaClO6 pentagonal bipyramids, a cornercorner with one AlO4 tetrahedra, and corners with three SiO4 tetrahedra. There is one shorter (1.73 Å) and three longer (1.78 Å) Al–O bond length. In the eighth Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There is three shorter (1.75 Å) and one longer (1.80 Å) Al–O bond length. In the ninth Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.73–1.80 Å. In the tenth Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with four CaClO6 pentagonal bipyramids, corners with four AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. All Al–O bond lengths are 1.77 Å. In the eleventh Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with two CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with three CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.75–1.80 Å. There are three inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There is one shorter (1.61 Å) and three longer (1.67 Å) Si–O bond length. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There are a spread of Si–O bond distances ranging from 1.61–1.68 Å. In the third Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There are a spread of Si–O bond distances ranging from 1.61–1.68 Å. There are thirty-two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+, one Al3+, and one Si4+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to two Ca2+, one Al3+, and one Si4+ atom. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the sixth O2- site, O2- is bonded to two Ca2+ and two Al3+ atoms to form distorted corner-sharing OCa2Al2 trigonal pyramids. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+, one Al3+, and one Si4+ atom. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the tenth O2- site, O2- is bonded to three Ca2+ and one Al3+ atom to form distorted OCa3Al tetrahedra that share a cornercorner with one OCa3Al tetrahedra and corners with four OCa2Al2 trigonal pyramids. In the eleventh O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+, one Al3+, and one Si4+ atom. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to two Ca2+, one Al3+, and one Si4+ atom. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Ca2+ and two Al3+ atoms. In the fifteenth O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one Si4+ atom. In the sixteenth O2- site, O2- is bonded to three Ca2+ and one Al3+ atom to form distorted OCa3Al tetrahedra that share corners with two OCa3Al tetrahedra and a cornercorner with one OCa2Al2 trigonal pyramid. In the seventeenth O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one Si4+ atom. In the eighteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the nineteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Ca2+, one Al3+, and one Si4+ atom. In the twentieth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the twenty-first O2- site, O2- is bonded to three Ca2+ and one Al3+ atom to form distorted OCa3Al tetrahedra that share a cornercorner with one OCa3Al tetrahedra, corners with two OCa2Al2 trigonal pyramids, and an edgeedge with one OCa2Al2 trigonal pyramid« less

Authors:
Contributors:
Researcher:
Publication Date:
Other Number(s):
mp-720971
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; Ca12Al11Si3Cl5O32; Al-Ca-Cl-O-Si
OSTI Identifier:
1287265
DOI:
10.17188/1287265

Citation Formats

Persson, Kristin, and Project, Materials. Materials Data on Ca12Al11Si3Cl5O32 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1287265.
Persson, Kristin, & Project, Materials. Materials Data on Ca12Al11Si3Cl5O32 by Materials Project. United States. doi:10.17188/1287265.
Persson, Kristin, and Project, Materials. 2020. "Materials Data on Ca12Al11Si3Cl5O32 by Materials Project". United States. doi:10.17188/1287265. https://www.osti.gov/servlets/purl/1287265. Pub date:Sat May 02 00:00:00 EDT 2020
@article{osti_1287265,
title = {Materials Data on Ca12Al11Si3Cl5O32 by Materials Project},
author = {Persson, Kristin and Project, Materials},
abstractNote = {Ca12Al11Si3O32Cl5 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twelve inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, corners with four AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, an edgeedge with one SiO4 tetrahedra, and edges with two AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.34–2.64 Å. The Ca–Cl bond length is 2.77 Å. In the second Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, corners with two AlO4 tetrahedra, corners with two SiO4 tetrahedra, edges with four CaClO6 pentagonal bipyramids, and edges with three AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.40–2.51 Å. The Ca–Cl bond length is 2.81 Å. In the third Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, an edgeedge with one SiO4 tetrahedra, and edges with two AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.38–2.62 Å. The Ca–Cl bond length is 2.76 Å. In the fourth Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, edges with four CaClO6 pentagonal bipyramids, and edges with three AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.37–2.54 Å. The Ca–Cl bond length is 2.82 Å. In the fifth Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, and edges with three AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.37–2.53 Å. The Ca–Cl bond length is 2.81 Å. In the sixth Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, an edgeedge with one SiO4 tetrahedra, and edges with two AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.35–2.57 Å. The Ca–Cl bond length is 2.76 Å. In the seventh Ca2+ site, Ca2+ is bonded in a distorted hexagonal planar geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.56 Å. In the eighth Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, an edgeedge with one SiO4 tetrahedra, and edges with two AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.39–2.60 Å. The Ca–Cl bond length is 2.76 Å. In the ninth Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, corners with four AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, an edgeedge with one SiO4 tetrahedra, and edges with two AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.35–2.60 Å. The Ca–Cl bond length is 2.76 Å. In the tenth Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, an edgeedge with one SiO4 tetrahedra, and edges with two AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.35–2.55 Å. The Ca–Cl bond length is 2.75 Å. In the eleventh Ca2+ site, Ca2+ is bonded to six O2- and one Cl1- atom to form distorted CaClO6 pentagonal bipyramids that share a cornercorner with one CaClO6 pentagonal bipyramid, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, edges with three CaClO6 pentagonal bipyramids, and edges with three AlO4 tetrahedra. There are a spread of Ca–O bond distances ranging from 2.40–2.64 Å. The Ca–Cl bond length is 2.80 Å. In the twelfth Ca2+ site, Ca2+ is bonded in a distorted hexagonal planar geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.50 Å. There are eleven inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.75–1.80 Å. In the second Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with two CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with three CaClO6 pentagonal bipyramids. There is one shorter (1.75 Å) and three longer (1.79 Å) Al–O bond length. In the third Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, corners with two AlO4 tetrahedra, corners with two SiO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.74–1.80 Å. In the fourth Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, corners with two AlO4 tetrahedra, corners with two SiO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.74–1.79 Å. In the fifth Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with two CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with three CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.74–1.80 Å. In the sixth Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with two CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with three CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.75–1.80 Å. In the seventh Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with four CaClO6 pentagonal bipyramids, a cornercorner with one AlO4 tetrahedra, and corners with three SiO4 tetrahedra. There is one shorter (1.73 Å) and three longer (1.78 Å) Al–O bond length. In the eighth Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, a cornercorner with one SiO4 tetrahedra, corners with three AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There is three shorter (1.75 Å) and one longer (1.80 Å) Al–O bond length. In the ninth Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.73–1.80 Å. In the tenth Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with four CaClO6 pentagonal bipyramids, corners with four AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. All Al–O bond lengths are 1.77 Å. In the eleventh Al3+ site, Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with two CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with three CaClO6 pentagonal bipyramids. There are a spread of Al–O bond distances ranging from 1.75–1.80 Å. There are three inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There is one shorter (1.61 Å) and three longer (1.67 Å) Si–O bond length. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There are a spread of Si–O bond distances ranging from 1.61–1.68 Å. In the third Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three CaClO6 pentagonal bipyramids, corners with three AlO4 tetrahedra, and edges with two CaClO6 pentagonal bipyramids. There are a spread of Si–O bond distances ranging from 1.61–1.68 Å. There are thirty-two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+, one Al3+, and one Si4+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to two Ca2+, one Al3+, and one Si4+ atom. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the sixth O2- site, O2- is bonded to two Ca2+ and two Al3+ atoms to form distorted corner-sharing OCa2Al2 trigonal pyramids. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+, one Al3+, and one Si4+ atom. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the tenth O2- site, O2- is bonded to three Ca2+ and one Al3+ atom to form distorted OCa3Al tetrahedra that share a cornercorner with one OCa3Al tetrahedra and corners with four OCa2Al2 trigonal pyramids. In the eleventh O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+, one Al3+, and one Si4+ atom. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to two Ca2+, one Al3+, and one Si4+ atom. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Ca2+ and two Al3+ atoms. In the fifteenth O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one Si4+ atom. In the sixteenth O2- site, O2- is bonded to three Ca2+ and one Al3+ atom to form distorted OCa3Al tetrahedra that share corners with two OCa3Al tetrahedra and a cornercorner with one OCa2Al2 trigonal pyramid. In the seventeenth O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one Si4+ atom. In the eighteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the nineteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Ca2+, one Al3+, and one Si4+ atom. In the twentieth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Al3+ atoms. In the twenty-first O2- site, O2- is bonded to three Ca2+ and one Al3+ atom to form distorted OCa3Al tetrahedra that share a cornercorner with one OCa3Al tetrahedra, corners with two OCa2Al2 trigonal pyramids, and an edgeedge with one OCa2Al2 trigonal pyramid},
doi = {10.17188/1287265},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}

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