Materials Data on Sr9NdFe5(MoO6)5 by Materials Project
Sr9NdFe5(MoO6)5 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are nine inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with seven SrO12 cuboctahedra, faces with two equivalent SrO12 cuboctahedra, faces with three FeO6 octahedra, and faces with five MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.63–3.16 Å. In the second Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with eight SrO12 cuboctahedra, a faceface with one SrO12 cuboctahedra, faces with four MoO6 octahedra, and faces with four FeO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.61–3.10 Å. In the third Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with seven SrO12 cuboctahedra, faces with four MoO6 octahedra, and faces with four FeO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.56–3.10 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Sr–O bond distances ranging from 2.59–3.14 Å. In the fifth Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Sr–O bond distances ranging from 2.55–3.21 Å. In the sixth Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with two equivalent SrO12 cuboctahedra, faces with three SrO12 cuboctahedra, faces with three MoO6 octahedra, and faces with five FeO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.65–3.12 Å. In the seventh Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Sr–O bond distances ranging from 2.59–3.20 Å. In the eighth Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Sr–O bond distances ranging from 2.60–3.17 Å. In the ninth Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Sr–O bond distances ranging from 2.57–3.25 Å. Nd3+ is bonded in a 10-coordinate geometry to eight O2- atoms. There are a spread of Nd–O bond distances ranging from 2.40–2.87 Å. There are five inequivalent Mo+5.20+ sites. In the first Mo+5.20+ site, Mo+5.20+ is bonded to six O2- atoms to form MoO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with four MoO6 octahedra, and faces with three SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–19°. There are a spread of Mo–O bond distances ranging from 1.99–2.10 Å. In the second Mo+5.20+ site, Mo+5.20+ is bonded to six O2- atoms to form MoO6 octahedra that share corners with two equivalent MoO6 octahedra, corners with four FeO6 octahedra, and faces with three SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–19°. There are a spread of Mo–O bond distances ranging from 1.95–2.04 Å. In the third Mo+5.20+ site, Mo+5.20+ is bonded to six O2- atoms to form MoO6 octahedra that share a cornercorner with one MoO6 octahedra, corners with five FeO6 octahedra, and faces with five SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–17°. There are a spread of Mo–O bond distances ranging from 1.94–2.05 Å. In the fourth Mo+5.20+ site, Mo+5.20+ is bonded to six O2- atoms to form MoO6 octahedra that share corners with six FeO6 octahedra and faces with three SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–25°. There are a spread of Mo–O bond distances ranging from 1.93–2.06 Å. In the fifth Mo+5.20+ site, Mo+5.20+ is bonded to six O2- atoms to form MoO6 octahedra that share a cornercorner with one MoO6 octahedra, corners with five FeO6 octahedra, and faces with two equivalent SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 3–23°. There are a spread of Mo–O bond distances ranging from 1.93–2.04 Å. There are five inequivalent Fe+2.60+ sites. In the first Fe+2.60+ site, Fe+2.60+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one FeO6 octahedra, corners with five MoO6 octahedra, and faces with five SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 2–19°. There are a spread of Fe–O bond distances ranging from 1.98–2.12 Å. In the second Fe+2.60+ site, Fe+2.60+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six MoO6 octahedra and faces with four SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–25°. There are a spread of Fe–O bond distances ranging from 1.98–2.08 Å. In the third Fe+2.60+ site, Fe+2.60+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one FeO6 octahedra, corners with five MoO6 octahedra, and faces with two SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 3–24°. There are a spread of Fe–O bond distances ranging from 1.98–2.13 Å. In the fourth Fe+2.60+ site, Fe+2.60+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with four MoO6 octahedra, and faces with two SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–23°. There are a spread of Fe–O bond distances ranging from 1.99–2.09 Å. In the fifth Fe+2.60+ site, Fe+2.60+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent MoO6 octahedra, corners with four FeO6 octahedra, and faces with three SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 2–20°. There are a spread of Fe–O bond distances ranging from 2.01–2.06 Å. There are thirty inequivalent O2- sites. In the first O2- site, O2- is bonded to four Sr2+ and two Fe+2.60+ atoms to form distorted OSr4Fe2 octahedra that share corners with three OSr4FeMo octahedra and edges with two equivalent OSr4Mo2 octahedra. The corner-sharing octahedral tilt angles are 2°. In the second O2- site, O2- is bonded in a distorted linear geometry to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the third O2- site, O2- is bonded in a distorted linear geometry to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the fourth O2- site, O2- is bonded in a distorted linear geometry to two Sr2+, two equivalent Nd3+, one Mo+5.20+, and one Fe+2.60+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+ and two Mo+5.20+ atoms. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+, one Nd3+, one Mo+5.20+, and one Fe+2.60+ atom. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the tenth O2- site, O2- is bonded in a 6-coordinate geometry to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the eleventh O2- site, O2- is bonded in a 4-coordinate geometry to four Sr2+ and two Mo+5.20+ atoms. In the twelfth O2- site, O2- is bonded in a 6-coordinate geometry to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the fourteenth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+, one Nd3+, and two Fe+2.60+ atoms. In the fifteenth O2- site, O2- is bonded in a 4-coordinate geometry to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the sixteenth O2- site, O2- is bonded to four Sr2+ and two Mo+5.20+ atoms to form distorted OSr4Mo2 octahedra that share corners with three OSr4Mo2 octahedra and edges with two equivalent OSr4Fe2 octahedra. The corner-sharing octahedra tilt angles range from 2–5°. In the seventeenth O2- site, O2- is bonded to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom to form distorted corner-sharing OSr4FeMo octahedra. The corner-sharing octahedral tilt angles are 2°. In the eighteenth O2- site, O2- is bonded in a distorted linear geometry to three Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the nineteenth O2- site, O2- is bonded in a 6-coordinate geometry to three Sr2+, one Nd3+, and two Fe+2.60+ atoms. In the twentieth O2- site, O2- is bonded in a distorted linear geometry to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the twenty-first O2- site, O2- is bonded in a 4-coordinate geometry to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the twenty-second O2- site, O2- is bonded in a 4-coordinate geometry to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the twenty-third O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the twenty-fourth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+, one Nd3+, one Mo+5.20+, and one Fe+2.60+ atom. In the twenty-fifth O2- site, O2- is bonded in a 4-coordinate geometry to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the twenty-sixth O2- site, O2- is bonded in a 4-coordinate geometry to four Sr2+ and two Mo+5.20+ atoms. In the twenty-seventh O2- site, O2- is bonded in a 4-coordinate geometry to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the twenty-eighth O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+, one Nd3+, one Mo+5.20+, and one Fe+2.60+ atom. In the twenty-ninth O2- site, O2- is bonded in a 4-coordinate geometry to four Sr2+, one Mo+5.20+, and one Fe+2.60+ atom. In the thirtieth O2- site, O2- is bonded in a 6-coordinate geometry to three Sr2+, one Nd3+, and two Fe+2.60+ atoms.