Materials Data on La16Cu8O31 by Materials Project
La16Cu8O31 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are sixteen inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.31–2.87 Å. In the second La3+ site, La3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.31–2.74 Å. In the third La3+ site, La3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.29–2.89 Å. In the fourth La3+ site, La3+ is bonded in a 2-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.29–2.82 Å. In the fifth La3+ site, La3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.30–2.74 Å. In the sixth La3+ site, La3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of La–O bond distances ranging from 2.28–2.69 Å. In the seventh La3+ site, La3+ is bonded in a 2-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.31–2.86 Å. In the eighth La3+ site, La3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of La–O bond distances ranging from 2.33–2.69 Å. In the ninth La3+ site, La3+ is bonded in a 2-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.32–3.02 Å. In the tenth La3+ site, La3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of La–O bond distances ranging from 2.35–2.67 Å. In the eleventh La3+ site, La3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.31–2.87 Å. In the twelfth La3+ site, La3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.31–2.86 Å. In the thirteenth La3+ site, La3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.30–2.96 Å. In the fourteenth La3+ site, La3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of La–O bond distances ranging from 2.36–2.65 Å. In the fifteenth La3+ site, La3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.27–2.81 Å. In the sixteenth La3+ site, La3+ is bonded in a 2-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.26–2.79 Å. There are eight inequivalent Cu+1.75+ sites. In the first Cu+1.75+ site, Cu+1.75+ is bonded to six O2- atoms to form distorted CuO6 octahedra that share corners with three CuO6 octahedra and a cornercorner with one CuO5 square pyramid. The corner-sharing octahedral tilt angles are 7°. There are a spread of Cu–O bond distances ranging from 1.95–2.58 Å. In the second Cu+1.75+ site, Cu+1.75+ is bonded to six O2- atoms to form distorted CuO6 octahedra that share corners with three CuO6 octahedra and a cornercorner with one CuO5 square pyramid. The corner-sharing octahedra tilt angles range from 6–11°. There are a spread of Cu–O bond distances ranging from 1.94–2.68 Å. In the third Cu+1.75+ site, Cu+1.75+ is bonded to six O2- atoms to form distorted corner-sharing CuO6 octahedra. The corner-sharing octahedra tilt angles range from 7–10°. There are a spread of Cu–O bond distances ranging from 1.94–2.56 Å. In the fourth Cu+1.75+ site, Cu+1.75+ is bonded to six O2- atoms to form distorted corner-sharing CuO6 octahedra. The corner-sharing octahedra tilt angles range from 6–8°. There are a spread of Cu–O bond distances ranging from 1.94–2.56 Å. In the fifth Cu+1.75+ site, Cu+1.75+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with three CuO6 octahedra and a cornercorner with one CuO5 square pyramid. The corner-sharing octahedra tilt angles range from 6–9°. There are a spread of Cu–O bond distances ranging from 1.94–2.51 Å. In the sixth Cu+1.75+ site, Cu+1.75+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with three CuO6 octahedra and a cornercorner with one CuO5 square pyramid. The corner-sharing octahedra tilt angles range from 7–11°. There are a spread of Cu–O bond distances ranging from 1.95–2.49 Å. In the seventh Cu+1.75+ site, Cu+1.75+ is bonded to five O2- atoms to form distorted corner-sharing CuO5 square pyramids. The corner-sharing octahedra tilt angles range from 1–12°. There are a spread of Cu–O bond distances ranging from 1.93–2.61 Å. In the eighth Cu+1.75+ site, Cu+1.75+ is bonded to six O2- atoms to form distorted corner-sharing CuO6 octahedra. The corner-sharing octahedra tilt angles range from 6–11°. There are a spread of Cu–O bond distances ranging from 1.94–2.57 Å. There are thirty-one inequivalent O2- sites. In the first O2- site, O2- is bonded to four La3+ and two Cu+1.75+ atoms to form a mixture of distorted edge, face, and corner-sharing OLa4Cu2 octahedra. The corner-sharing octahedra tilt angles range from 3–4°. In the second O2- site, O2- is bonded in a 6-coordinate geometry to four La3+ and two Cu+1.75+ atoms. In the third O2- site, O2- is bonded to four La3+ and two Cu+1.75+ atoms to form a mixture of distorted edge, face, and corner-sharing OLa4Cu2 octahedra. The corner-sharing octahedra tilt angles range from 2–3°. In the fourth O2- site, O2- is bonded to four La3+ and two Cu+1.75+ atoms to form a mixture of distorted edge, face, and corner-sharing OLa4Cu2 octahedra. The corner-sharing octahedral tilt angles are 2°. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to three La3+ and one Cu+1.75+ atom. In the sixth O2- site, O2- is bonded in a 5-coordinate geometry to four La3+ and one Cu+1.75+ atom. In the seventh O2- site, O2- is bonded in a 5-coordinate geometry to four La3+ and one Cu+1.75+ atom. In the eighth O2- site, O2- is bonded in a 5-coordinate geometry to four La3+ and one Cu+1.75+ atom. In the ninth O2- site, O2- is bonded to four La3+ and two Cu+1.75+ atoms to form a mixture of distorted edge, face, and corner-sharing OLa4Cu2 octahedra. The corner-sharing octahedral tilt angles are 1°. In the tenth O2- site, O2- is bonded to four La3+ and two Cu+1.75+ atoms to form a mixture of distorted edge, face, and corner-sharing OLa4Cu2 octahedra. The corner-sharing octahedral tilt angles are 3°. In the eleventh O2- site, O2- is bonded to four La3+ and two Cu+1.75+ atoms to form a mixture of distorted edge, face, and corner-sharing OLa4Cu2 octahedra. The corner-sharing octahedral tilt angles are 3°. In the twelfth O2- site, O2- is bonded to four La3+ and two Cu+1.75+ atoms to form a mixture of distorted edge, face, and corner-sharing OLa4Cu2 octahedra. The corner-sharing octahedral tilt angles are 2°. In the thirteenth O2- site, O2- is bonded in a 5-coordinate geometry to four La3+ and one Cu+1.75+ atom. In the fourteenth O2- site, O2- is bonded in a 5-coordinate geometry to four La3+ and one Cu+1.75+ atom. In the fifteenth O2- site, O2- is bonded in a 5-coordinate geometry to four La3+ and one Cu+1.75+ atom. In the sixteenth O2- site, O2- is bonded in a 5-coordinate geometry to four La3+ and one Cu+1.75+ atom. In the seventeenth O2- site, O2- is bonded in a 5-coordinate geometry to four La3+ and one Cu+1.75+ atom. In the eighteenth O2- site, O2- is bonded in a 5-coordinate geometry to four La3+ and one Cu+1.75+ atom. In the nineteenth O2- site, O2- is bonded in a 5-coordinate geometry to four La3+ and one Cu+1.75+ atom. In the twentieth O2- site, O2- is bonded in a 5-coordinate geometry to four La3+ and one Cu+1.75+ atom. In the twenty-first O2- site, O2- is bonded in a 6-coordinate geometry to four La3+ and two Cu+1.75+ atoms. In the twenty-second O2- site, O2- is bonded in a 6-coordinate geometry to four La3+ and two Cu+1.75+ atoms. In the twenty-third O2- site, O2- is bonded to four La3+ and two Cu+1.75+ atoms to form a mixture of distorted edge, face, and corner-sharing OLa4Cu2 octahedra. The corner-sharing octahedral tilt angles are 3°. In the twenty-fourth O2- site, O2- is bonded to four La3+ and two Cu+1.75+ atoms to form a mixture of distorted edge, face, and corner-sharing OLa4Cu2 octahedra. The corner-sharing octahedra tilt angles range from 1–4°. In the twenty-fifth O2- site, O2- is bonded in a 5-coordinate geometry to four La3+ and one Cu+1.75+ atom. In the twenty-sixth O2- site, O2- is bonded in a 5-coordinate geometry to four La3+ and one Cu+1.75+ atom. In the twenty-seventh O2- site, O2- is bonded in a 6-coordinate geometry to five La3+ and one Cu+1.75+ atom. In the twenty-eighth O2- site, O2- is bonded in a 6-coordinate geometry to four La3+ and two Cu+1.75+ atoms. In the twenty-ninth O2- site, O2- is bonded in a 6-coordinate geometry to four La3+ and two Cu+1.75+ atoms. In the thirtieth O2- site, O2- is bonded to four La3+ and two Cu+1.75+ atoms to form a mixture of distorted edge, face, and corner-sharing OLa4Cu2 octahedra. The corner-sharing octahedral tilt angles are 4°. In the thirty-first O2- site, O2- is bonded to four La3+ and two Cu+1.75+ atoms to form a mixture of distorted edge, face, and corner-sharing OLa4Cu2 octahedra. The corner-sharing octahedral tilt angles are 2°.