DOI: 10.17188/1283307
title: Materials Data on Ca16Zr9Ta7N7O41 by Materials Project

description: Ca16Zr9Ta7N7O41 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are sixteen inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to one N3- and seven O2- atoms. The Ca–N bond length is 2.50 Å. There are a spread of Ca–O bond distances ranging from 2.35–2.98 Å. In the second Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to one N3- and seven O2- atoms. The Ca–N bond length is 2.52 Å. There are a spread of Ca–O bond distances ranging from 2.36–2.90 Å. In the third Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to one N3- and seven O2- atoms. The Ca–N bond length is 2.49 Å. There are a spread of Ca–O bond distances ranging from 2.33–3.00 Å. In the fourth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to two N3- and six O2- atoms. There are one shorter (2.56 Å) and one longer (2.84 Å) Ca–N bond lengths. There are a spread of Ca–O bond distances ranging from 2.35–3.00 Å. In the fifth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to one N3- and seven O2- atoms. The Ca–N bond length is 2.38 Å. There are a spread of Ca–O bond distances ranging from 2.35–2.94 Å. In the sixth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to one N3- and seven O2- atoms. The Ca–N bond length is 2.37 Å. There are a spread of Ca–O bond distances ranging from 2.43–2.89 Å. In the seventh Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to one N3- and seven O2- atoms. The Ca–N bond length is 2.38 Å. There are a spread of Ca–O bond distances ranging from 2.42–2.95 Å. In the eighth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to two N3- and six O2- atoms. There are one shorter (2.37 Å) and one longer (2.80 Å) Ca–N bond lengths. There are a spread of Ca–O bond distances ranging from 2.37–3.00 Å. In the ninth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to one N3- and seven O2- atoms. The Ca–N bond length is 2.61 Å. There are a spread of Ca–O bond distances ranging from 2.29–2.90 Å. In the tenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.30–2.87 Å. In the eleventh Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to one N3- and seven O2- atoms. The Ca–N bond length is 2.41 Å. There are a spread of Ca–O bond distances ranging from 2.29–2.89 Å. In the twelfth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to one N3- and seven O2- atoms. The Ca–N bond length is 2.65 Å. There are a spread of Ca–O bond distances ranging from 2.30–2.89 Å. In the thirteenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.88 Å. In the fourteenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to one N3- and seven O2- atoms. The Ca–N bond length is 2.45 Å. There are a spread of Ca–O bond distances ranging from 2.39–2.93 Å. In the fifteenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to one N3- and seven O2- atoms. The Ca–N bond length is 2.61 Å. There are a spread of Ca–O bond distances ranging from 2.38–2.89 Å. In the sixteenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to one N3- and seven O2- atoms. The Ca–N bond length is 2.39 Å. There are a spread of Ca–O bond distances ranging from 2.37–2.93 Å. There are nine inequivalent Zr4+ sites. In the first Zr4+ site, Zr4+ is bonded to six O2- atoms to form ZrO6 octahedra that share corners with two TaO6 octahedra and corners with four equivalent ZrNO5 octahedra. The corner-sharing octahedra tilt angles range from 32–39°. There are a spread of Zr–O bond distances ranging from 2.08–2.21 Å. In the second Zr4+ site, Zr4+ is bonded to one N3- and five O2- atoms to form corner-sharing ZrNO5 octahedra. The corner-sharing octahedra tilt angles range from 32–39°. The Zr–N bond length is 2.06 Å. There are a spread of Zr–O bond distances ranging from 2.13–2.22 Å. In the third Zr4+ site, Zr4+ is bonded to one N3- and five O2- atoms to form ZrNO5 octahedra that share corners with two ZrNO5 octahedra and corners with four equivalent TaO6 octahedra. The corner-sharing octahedra tilt angles range from 29–37°. The Zr–N bond length is 2.05 Å. There are a spread of Zr–O bond distances ranging from 2.14–2.20 Å. In the fourth Zr4+ site, Zr4+ is bonded to one N3- and five O2- atoms to form ZrNO5 octahedra that share corners with two ZrNO5 octahedra and corners with four equivalent TaO6 octahedra. The corner-sharing octahedra tilt angles range from 29–37°. The Zr–N bond length is 2.05 Å. There are a spread of Zr–O bond distances ranging from 2.14–2.20 Å. In the fifth Zr4+ site, Zr4+ is bonded to one N3- and five O2- atoms to form ZrNO5 octahedra that share corners with two ZrNO5 octahedra and corners with four equivalent TaNO5 octahedra. The corner-sharing octahedra tilt angles range from 26–35°. The Zr–N bond length is 2.04 Å. There are a spread of Zr–O bond distances ranging from 2.15–2.20 Å. In the sixth Zr4+ site, Zr4+ is bonded to two N3- and four O2- atoms to form ZrN2O4 octahedra that share corners with two ZrNO5 octahedra and corners with four equivalent TaNO5 octahedra. The corner-sharing octahedra tilt angles range from 28–37°. There are one shorter (2.09 Å) and one longer (2.15 Å) Zr–N bond lengths. There are a spread of Zr–O bond distances ranging from 2.15–2.20 Å. In the seventh Zr4+ site, Zr4+ is bonded to two N3- and four O2- atoms to form ZrN2O4 octahedra that share corners with two ZrNO5 octahedra and corners with four equivalent TaNO5 octahedra. The corner-sharing octahedra tilt angles range from 27–37°. There are one shorter (2.06 Å) and one longer (2.16 Å) Zr–N bond lengths. There are a spread of Zr–O bond distances ranging from 2.16–2.19 Å. In the eighth Zr4+ site, Zr4+ is bonded to one N3- and five O2- atoms to form ZrNO5 octahedra that share corners with two ZrN2O4 octahedra and corners with four equivalent TaO6 octahedra. The corner-sharing octahedra tilt angles range from 28–37°. The Zr–N bond length is 2.01 Å. There are a spread of Zr–O bond distances ranging from 2.17–2.21 Å. In the ninth Zr4+ site, Zr4+ is bonded to one N3- and five O2- atoms to form ZrNO5 octahedra that share corners with two ZrNO5 octahedra and corners with four equivalent TaNO5 octahedra. The corner-sharing octahedra tilt angles range from 29–35°. The Zr–N bond length is 2.00 Å. There are a spread of Zr–O bond distances ranging from 2.16–2.21 Å. There are seven inequivalent Ta5+ sites. In the first Ta5+ site, Ta5+ is bonded to one N3- and five O2- atoms to form TaNO5 octahedra that share corners with two TaO6 octahedra and corners with four equivalent ZrNO5 octahedra. The corner-sharing octahedra tilt angles range from 26–35°. The Ta–N bond length is 1.93 Å. There are a spread of Ta–O bond distances ranging from 2.00–2.32 Å. In the second Ta5+ site, Ta5+ is bonded to one N3- and five O2- atoms to form TaNO5 octahedra that share corners with two TaO6 octahedra and corners with four equivalent ZrN2O4 octahedra. The corner-sharing octahedra tilt angles range from 28–34°. The Ta–N bond length is 1.92 Å. There are a spread of Ta–O bond distances ranging from 2.02–2.16 Å. In the third Ta5+ site, Ta5+ is bonded to one N3- and five O2- atoms to form TaNO5 octahedra that share corners with two TaO6 octahedra and corners with four equivalent ZrN2O4 octahedra. The corner-sharing octahedra tilt angles range from 27–35°. The Ta–N bond length is 1.91 Å. There are a spread of Ta–O bond distances ranging from 2.01–2.14 Å. In the fourth Ta5+ site, Ta5+ is bonded to six O2- atoms to form TaO6 octahedra that share a cornercorner with one TaNO5 octahedra and corners with five ZrO6 octahedra. The corner-sharing octahedra tilt angles range from 29–34°. There are a spread of Ta–O bond distances ranging from 1.99–2.05 Å. In the fifth Ta5+ site, Ta5+ is bonded to six O2- atoms to form TaO6 octahedra that share a cornercorner with one TaNO5 octahedra and corners with five ZrO6 octahedra. The corner-sharing octahedra tilt angles range from 29–34°. There are a spread of Ta–O bond distances ranging from 2.00–2.04 Å. In the sixth Ta5+ site, Ta5+ is bonded to six O2- atoms to form TaO6 octahedra that share corners with two TaNO5 octahedra and corners with four equivalent ZrNO5 octahedra. The corner-sharing octahedra tilt angles range from 28–34°. There are a spread of Ta–O bond distances ranging from 1.99–2.09 Å. In the seventh Ta5+ site, Ta5+ is bonded to one N3- and five O2- atoms to form TaNO5 octahedra that share corners with two TaNO5 octahedra and corners with four equivalent ZrNO5 octahedra. The corner-sharing octahedra tilt angles range from 28–34°. The Ta–N bond length is 2.03 Å. There are a spread of Ta–O bond distances ranging from 1.99–2.15 Å. There are seven inequivalent N3- sites. In the first N3- site, N3- is bonded in a 4-coordinate geometry to two Ca2+ and two Ta5+ atoms. In the second N3- site, N3- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the third N3- site, N3- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the fourth N3- site, N3- is bonded to two Ca2+ and two Zr4+ atoms to form distorted NCa2Zr2 tetrahedra that share corners with four OCa2Zr2 tetrahedra. In the fifth N3- site, N3- is bonded in a 4-coordinate geometry to two Ca2+ and two Zr4+ atoms. In the sixth N3- site, N3- is bonded in a 4-coordinate geometry to two Ca2+ and two Zr4+ atoms. In the seventh N3- site, N3- is bonded in a 4-coordinate geometry to two Ca2+ and two Zr4+ atoms. There are forty-one inequivalent O2- sites. In the first O2- site, O2- is bonded to two Ca2+ and two Zr4+ atoms to form distorted OCa2Zr2 tetrahedra that share a cornercorner with one NCa2Zr2 tetrahedra and corners with two equivalent OCa2ZrTa tetrahedra. In the second O2- site, O2- is bonded in a distorted tetrahedral geometry to two Ca2+ and two Zr4+ atoms. In the third O2- site, O2- is bonded to two Ca2+ and two Zr4+ atoms to form distorted corner-sharing OCa2Zr2 tetrahedra. In the fourth O2- site, O2- is bonded to two Ca2+ and two Zr4+ atoms to form distorted OCa2Zr2 tetrahedra that share a cornercorner with one NCa2Zr2 tetrahedra and corners with two equivalent OCa2Ta2 tetrahedra. In the fifth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the sixth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the seventh O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the eighth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+ and two Zr4+ atoms. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the tenth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the eleventh O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the twelfth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the thirteenth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the fourteenth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the fifteenth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the sixteenth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the seventeenth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the eighteenth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+ and two Zr4+ atoms. In the nineteenth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+, one Zr4+, and one Ta5+ atom. In the twentieth O2- site, O2-