Materials Data on Ca9La5Br33 by Materials Project
Ca9La5Br33 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are nine inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 10-coordinate geometry to ten Br1- atoms. There are a spread of Ca–Br bond distances ranging from 3.02–3.54 Å. In the second Ca2+ site, Ca2+ is bonded in a 9-coordinate geometry to nine Br1- atoms. There are a spread of Ca–Br bond distances ranging from 3.02–3.65 Å. In the third Ca2+ site, Ca2+ is bonded in a 9-coordinate geometry to nine Br1- atoms. There are a spread of Ca–Br bond distances ranging from 2.91–3.44 Å. In the fourth Ca2+ site, Ca2+ is bonded in a 10-coordinate geometry to ten Br1- atoms. There are a spread of Ca–Br bond distances ranging from 3.01–3.53 Å. In the fifth Ca2+ site, Ca2+ is bonded in a 7-coordinate geometry to seven Br1- atoms. There are a spread of Ca–Br bond distances ranging from 2.92–3.18 Å. In the sixth Ca2+ site, Ca2+ is bonded in a 10-coordinate geometry to ten Br1- atoms. There are a spread of Ca–Br bond distances ranging from 3.14–3.60 Å. In the seventh Ca2+ site, Ca2+ is bonded in a 9-coordinate geometry to nine Br1- atoms. There are a spread of Ca–Br bond distances ranging from 3.02–3.62 Å. In the eighth Ca2+ site, Ca2+ is bonded in a distorted pentagonal bipyramidal geometry to seven Br1- atoms. There are a spread of Ca–Br bond distances ranging from 2.92–3.22 Å. In the ninth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight Br1- atoms. There are a spread of Ca–Br bond distances ranging from 3.00–3.52 Å. There are five inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a 9-coordinate geometry to nine Br1- atoms. There are a spread of La–Br bond distances ranging from 3.00–3.38 Å. In the second La3+ site, La3+ is bonded in a 9-coordinate geometry to nine Br1- atoms. There are a spread of La–Br bond distances ranging from 2.98–3.36 Å. In the third La3+ site, La3+ is bonded in a 8-coordinate geometry to eight Br1- atoms. There are a spread of La–Br bond distances ranging from 3.00–3.23 Å. In the fourth La3+ site, La3+ is bonded in a 8-coordinate geometry to eight Br1- atoms. There are a spread of La–Br bond distances ranging from 3.02–3.23 Å. In the fifth La3+ site, La3+ is bonded in a 8-coordinate geometry to eight Br1- atoms. There are a spread of La–Br bond distances ranging from 3.03–3.17 Å. There are thirty-three inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a distorted trigonal non-coplanar geometry to two Ca2+ and one La3+ atom. In the second Br1- site, Br1- is bonded to two Ca2+ and two La3+ atoms to form a mixture of distorted edge and corner-sharing BrCa2La2 tetrahedra. In the third Br1- site, Br1- is bonded in a distorted trigonal non-coplanar geometry to two Ca2+ and one La3+ atom. In the fourth Br1- site, Br1- is bonded in a 2-coordinate geometry to three Ca2+ and one La3+ atom. In the fifth Br1- site, Br1- is bonded in a distorted trigonal non-coplanar geometry to one Ca2+ and two La3+ atoms. In the sixth Br1- site, Br1- is bonded to three Ca2+ and one La3+ atom to form a mixture of distorted edge and corner-sharing BrCa3La tetrahedra. In the seventh Br1- site, Br1- is bonded in a distorted T-shaped geometry to one Ca2+ and two La3+ atoms. In the eighth Br1- site, Br1- is bonded in a distorted trigonal non-coplanar geometry to one Ca2+ and two La3+ atoms. In the ninth Br1- site, Br1- is bonded in a 4-coordinate geometry to three Ca2+ and one La3+ atom. In the tenth Br1- site, Br1- is bonded in a distorted trigonal non-coplanar geometry to two Ca2+ and one La3+ atom. In the eleventh Br1- site, Br1- is bonded to two Ca2+ and two equivalent La3+ atoms to form distorted BrCa2La2 tetrahedra that share corners with eight BrCa3La tetrahedra and edges with two BrCa2La2 tetrahedra. In the twelfth Br1- site, Br1- is bonded in a 4-coordinate geometry to three Ca2+ and one La3+ atom. In the thirteenth Br1- site, Br1- is bonded in a distorted trigonal non-coplanar geometry to one Ca2+ and two La3+ atoms. In the fourteenth Br1- site, Br1- is bonded to four Ca2+ atoms to form a mixture of edge and corner-sharing BrCa4 tetrahedra. In the fifteenth Br1- site, Br1- is bonded in a 2-coordinate geometry to one Ca2+ and two La3+ atoms. In the sixteenth Br1- site, Br1- is bonded to four Ca2+ atoms to form distorted BrCa4 tetrahedra that share corners with eight BrCa3La tetrahedra and edges with three BrCa4 tetrahedra. In the seventeenth Br1- site, Br1- is bonded to three Ca2+ and one La3+ atom to form distorted BrCa3La tetrahedra that share corners with six BrCa2La2 tetrahedra and edges with four BrCa3La tetrahedra. In the eighteenth Br1- site, Br1- is bonded to four Ca2+ atoms to form a mixture of distorted edge and corner-sharing BrCa4 tetrahedra. In the nineteenth Br1- site, Br1- is bonded in a 2-coordinate geometry to two Ca2+ and two La3+ atoms. In the twentieth Br1- site, Br1- is bonded to three Ca2+ and one La3+ atom to form distorted BrCa3La tetrahedra that share corners with eight BrCa3La tetrahedra and edges with three BrCa4 tetrahedra. In the twenty-first Br1- site, Br1- is bonded to three Ca2+ and one La3+ atom to form distorted BrCa3La tetrahedra that share corners with nine BrCa3La tetrahedra and edges with three BrCa4 tetrahedra. In the twenty-second Br1- site, Br1- is bonded in a 4-coordinate geometry to three Ca2+ and one La3+ atom. In the twenty-third Br1- site, Br1- is bonded to three Ca2+ and one La3+ atom to form distorted BrCa3La tetrahedra that share corners with seven BrCa2La2 tetrahedra and edges with five BrCa3La tetrahedra. In the twenty-fourth Br1- site, Br1- is bonded in a distorted trigonal non-coplanar geometry to one Ca2+ and two La3+ atoms. In the twenty-fifth Br1- site, Br1- is bonded in a distorted T-shaped geometry to one Ca2+ and two La3+ atoms. In the twenty-sixth Br1- site, Br1- is bonded in a 4-coordinate geometry to two Ca2+ and two La3+ atoms. In the twenty-seventh Br1- site, Br1- is bonded to three Ca2+ and one La3+ atom to form distorted BrCa3La tetrahedra that share corners with eight BrCa2La2 tetrahedra and edges with three BrCa3La tetrahedra. In the twenty-eighth Br1- site, Br1- is bonded in a 3-coordinate geometry to one Ca2+ and two La3+ atoms. In the twenty-ninth Br1- site, Br1- is bonded to three Ca2+ and one La3+ atom to form a mixture of distorted edge and corner-sharing BrCa3La tetrahedra. In the thirtieth Br1- site, Br1- is bonded to three Ca2+ and one La3+ atom to form a mixture of distorted edge and corner-sharing BrCa3La tetrahedra. In the thirty-first Br1- site, Br1- is bonded in a 3-coordinate geometry to two Ca2+ and two equivalent La3+ atoms. In the thirty-second Br1- site, Br1- is bonded to four Ca2+ atoms to form BrCa4 tetrahedra that share corners with nine BrCa2La2 tetrahedra and edges with four BrCa3La tetrahedra. In the thirty-third Br1- site, Br1- is bonded in a 4-coordinate geometry to three Ca2+ and one La3+ atom.