DOE OSTI2020
Cs15W7N19 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are sixteen inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 5-coordinate geometry to five N3- atoms. There are a spread of Cs–N bond distances ranging from 2.92–3.45 Å. In the second Cs1+ site, Cs1+ is bonded in a 5-coordinate geometry to five N3- atoms. There are a spread of Cs–N bond distances ranging from 2.95–3.56 Å. In the third Cs1+ site, Cs1+ is bonded in a 3-coordinate geometry to three N3- atoms. There are a spread of Cs–N bond distances ranging from 2.97–3.18 Å. In the fourth Cs1+ site, Cs1+ is bonded in a 5-coordinate geometry to five N3- atoms. There are a spread of Cs–N bond distances ranging from 2.94–3.47 Å. In the fifth Cs1+ site, Cs1+ is bonded in a 5-coordinate geometry to five N3- atoms. There are a spread of Cs–N bond distances ranging from 2.93–3.53 Å. In the sixth Cs1+ site, Cs1+ is bonded in a 3-coordinate geometry to three N3- atoms. There are a spread of Cs–N bond distances ranging from 3.04–3.35 Å. In the seventh Cs1+ site, Cs1+ is bonded in a 6-coordinate geometry to six N3- atoms. There are a spread of Cs–N bond distances ranging from 3.05–3.50 Å. In the eighth Cs1+ site, Cs1+ is bonded in a 2-coordinate geometry to three N3- atoms. There are a spread of Cs–N bond distances ranging from 2.87–3.33 Å. In the ninth Cs1+ site, Cs1+ is bonded in a 2-coordinate geometry to five N3- atoms. There are a spread of Cs–N bond distances ranging from 3.02–3.71 Å. In the tenth Cs1+ site, Cs1+ is bonded in a 6-coordinate geometry to six N3- atoms. There are a spread of Cs–N bond distances ranging from 3.08–3.60 Å. In the eleventh Cs1+ site, Cs1+ is bonded in a 2-coordinate geometry to six N3- atoms. There are a spread of Cs–N bond distances ranging from 2.86–3.73 Å. In the twelfth Cs1+ site, Cs1+ is bonded in a 7-coordinate geometry to seven N3- atoms. There are a spread of Cs–N bond distances ranging from 3.09–3.68 Å. In the thirteenth Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four N3- atoms. There are a spread of Cs–N bond distances ranging from 2.99–3.30 Å. In the fourteenth Cs1+ site, Cs1+ is bonded in a 2-coordinate geometry to five N3- atoms. There are a spread of Cs–N bond distances ranging from 2.85–3.61 Å. In the fifteenth Cs1+ site, Cs1+ is bonded in a hexagonal planar geometry to six N3- atoms. There are a spread of Cs–N bond distances ranging from 3.18–3.26 Å. In the sixteenth Cs1+ site, Cs1+ is bonded in a hexagonal planar geometry to six N3- atoms. There are a spread of Cs–N bond distances ranging from 3.15–3.29 Å. There are seven inequivalent W6+ sites. In the first W6+ site, W6+ is bonded to four N3- atoms to form corner-sharing WN4 tetrahedra. There are a spread of W–N bond distances ranging from 1.79–1.95 Å. In the second W6+ site, W6+ is bonded to four N3- atoms to form corner-sharing WN4 tetrahedra. There are a spread of W–N bond distances ranging from 1.79–1.97 Å. In the third W6+ site, W6+ is bonded to four N3- atoms to form corner-sharing WN4 tetrahedra. There are a spread of W–N bond distances ranging from 1.79–1.97 Å. In the fourth W6+ site, W6+ is bonded to four N3- atoms to form corner-sharing WN4 tetrahedra. There are a spread of W–N bond distances ranging from 1.82–1.99 Å. In the fifth W6+ site, W6+ is bonded to four N3- atoms to form corner-sharing WN4 tetrahedra. There are a spread of W–N bond distances ranging from 1.79–1.96 Å. In the sixth W6+ site, W6+ is bonded to four N3- atoms to form corner-sharing WN4 tetrahedra. There are a spread of W–N bond distances ranging from 1.82–2.00 Å. In the seventh W6+ site, W6+ is bonded to four N3- atoms to form corner-sharing WN4 tetrahedra. There is two shorter (1.83 Å) and two longer (1.99 Å) W–N bond length. There are nineteen inequivalent N3- sites. In the first N3- site, N3- is bonded in a 1-coordinate geometry to five Cs1+ and one W6+ atom. In the second N3- site, N3- is bonded in a 2-coordinate geometry to two Cs1+ and two W6+ atoms. In the third N3- site, N3- is bonded in a 1-coordinate geometry to five Cs1+ and one W6+ atom. In the fourth N3- site, N3- is bonded in a 2-coordinate geometry to three Cs1+ and two W6+ atoms. In the fifth N3- site, N3- is bonded in a 2-coordinate geometry to four Cs1+ and two W6+ atoms. In the sixth N3- site, N3- is bonded in a 5-coordinate geometry to four Cs1+ and one W6+ atom. In the seventh N3- site, N3- is bonded in a 1-coordinate geometry to four Cs1+ and one W6+ atom. In the eighth N3- site, N3- is bonded in a 2-coordinate geometry to four Cs1+ and two W6+ atoms. In the ninth N3- site, N3- is bonded in a 1-coordinate geometry to five Cs1+ and one W6+ atom. In the tenth N3- site, N3- is bonded in a 1-coordinate geometry to five Cs1+ and one W6+ atom. In the eleventh N3- site, N3- is bonded in a 2-coordinate geometry to four Cs1+ and two W6+ atoms. In the twelfth N3- site, N3- is bonded in a 4-coordinate geometry to four Cs1+ and one W6+ atom. In the thirteenth N3- site, N3- is bonded in a 2-coordinate geometry to three Cs1+ and two W6+ atoms. In the fourteenth N3- site, N3- is bonded in a distorted linear geometry to four Cs1+ and two W6+ atoms. In the fifteenth N3- site, N3- is bonded in a 1-coordinate geometry to four Cs1+ and one W6+ atom. In the sixteenth N3- site, N3- is bonded in a 2-coordinate geometry to three Cs1+ and two W6+ atoms. In the seventeenth N3- site, N3- is bonded in a 2-coordinate geometry to two Cs1+ and two W6+ atoms. In the eighteenth N3- site, N3- is bonded in a 1-coordinate geometry to five Cs1+ and one W6+ atom. In the nineteenth N3- site, N3- is bonded in a 1-coordinate geometry to four Cs1+ and one W6+ atom.