Materials Data on Pr11O20 by Materials Project

Abstract

Pr11O20 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are six inequivalent Pr+3.64+ sites. In the first Pr+3.64+ site, Pr+3.64+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Pr–O bond distances ranging from 2.43–2.72 Å. In the second Pr+3.64+ site, Pr+3.64+ is bonded to seven O2- atoms to form a mixture of distorted edge and corner-sharing PrO7 hexagonal pyramids. There are a spread of Pr–O bond distances ranging from 2.42–2.47 Å. In the third Pr+3.64+ site, Pr+3.64+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Pr–O bond distances ranging from 2.41–2.56 Å. In the fourth Pr+3.64+ site, Pr+3.64+ is bonded to seven O2- atoms to form a mixture of distorted edge and corner-sharing PrO7 hexagonal pyramids. There are a spread of Pr–O bond distances ranging from 2.39–2.49 Å. In the fifth Pr+3.64+ site, Pr+3.64+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Pr–O bond distances ranging from 2.43–2.66 Å. In the sixth Pr+3.64+ site, Pr+3.64+ is bonded to seven O2- atoms to form a mixture of distorted edge and corner-sharing PrO7 hexagonal pyramids. There are a spread of Pr–O bond distances ranging from 2.41–2.47 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded to four Pr+3.64+ atoms to form a mixture of edge and corner-sharing OPr4 tetrahedra. In the second O2- site, O2- is bonded to four Pr+3.64+ atoms to form a mixture of distorted edge and corner-sharing OPr4 tetrahedra. In the third O2- site, O2- is bonded to four Pr+3.64+ atoms to form a mixture of edge and corner-sharing OPr4 tetrahedra. In the fourth O2- site, O2- is bonded to four Pr+3.64+ atoms to form a mixture of edge and corner-sharing OPr4 tetrahedra. In the fifth O2- site, O2- is bonded to four Pr+3.64+ atoms to form a mixture of distorted edge and corner-sharing OPr4 tetrahedra. In the sixth O2- site, O2- is bonded to four Pr+3.64+ atoms to form a mixture of edge and corner-sharing OPr4 tetrahedra. In the seventh O2- site, O2- is bonded to four Pr+3.64+ atoms to form a mixture of distorted edge and corner-sharing OPr4 tetrahedra. In the eighth O2- site, O2- is bonded to four Pr+3.64+ atoms to form a mixture of edge and corner-sharing OPr4 tetrahedra. In the ninth O2- site, O2- is bonded to four Pr+3.64+ atoms to form a mixture of edge and corner-sharing OPr4 tetrahedra. In the tenth O2- site, O2- is bonded to four Pr+3.64+ atoms to form a mixture of edge and corner-sharing OPr4 tetrahedra.