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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on CePO4 by Materials Project

CePO4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Ce3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Ce–O bond distances ranging from 2.44–3.01 Å. P5+ is bonded in a tetrahedral geometry to four O2- atoms. There is two shorter (1.55 Å) and two longer (1.56 Å) P–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ce3+ and one P5+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Ce3+ and one P5+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Ce3+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to three equivalent Ce3+ and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeP2O7 by Materials Project

CeP2O7 crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. Ce4+ is bonded to six equivalent O2- atoms to form CeO6 octahedra that share corners with six equivalent PO4 tetrahedra. All Ce–O bond lengths are 2.24 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent CeO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedral tilt angles are 7°. There is three shorter (1.53 Å) and one longer (1.59 Å) P–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to one Ce4+ and one P5+ atom. In the second O2- site, O2- is bonded in a linear geometry to two equivalent P5+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CePO4 by Materials Project

CePO4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Ce3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Ce–O bond distances ranging from 2.46–2.80 Å. P5+ is bonded in a tetrahedral geometry to four O2- atoms. There is three shorter (1.55 Å) and one longer (1.56 Å) P–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ce3+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ce3+ and one P5+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ce3+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Ce3+ and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CePO4 by Materials Project

CePO4 is Zircon-like structured and crystallizes in the hexagonal P6_422 space group. The structure is three-dimensional. Ce3+ is bonded to eight equivalent O2- atoms to form distorted CeO8 hexagonal bipyramids that share corners with four equivalent PO4 tetrahedra, edges with four equivalent CeO8 hexagonal bipyramids, and edges with two equivalent PO4 tetrahedra. There are four shorter (2.44 Å) and four longer (2.60 Å) Ce–O bond lengths. P5+ is bonded to four equivalent O2- atoms to form PO4 tetrahedra that share corners with four equivalent CeO8 hexagonal bipyramids and edges with two equivalent CeO8 hexagonal bipyramids. All P–O bond lengths are 1.55 Å. O2- is bonded in a 1-coordinate geometry to two equivalent Ce3+ and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CePO4 by Materials Project

CePO4 is Zircon-like structured and crystallizes in the hexagonal P6_222 space group. The structure is three-dimensional. Ce3+ is bonded to eight equivalent O2- atoms to form distorted CeO8 hexagonal bipyramids that share corners with four equivalent PO4 tetrahedra, edges with four equivalent CeO8 hexagonal bipyramids, and edges with two equivalent PO4 tetrahedra. There are four shorter (2.44 Å) and four longer (2.60 Å) Ce–O bond lengths. P5+ is bonded to four equivalent O2- atoms to form PO4 tetrahedra that share corners with four equivalent CeO8 hexagonal bipyramids and edges with two equivalent CeO8 hexagonal bipyramids. All P–O bond lengths are 1.55 Å. O2- is bonded in a 1-coordinate geometry to two equivalent Ce3+ and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CePO4 by Materials Project

CePO4 is Zircon structured and crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. Ce3+ is bonded in a 8-coordinate geometry to eight equivalent O2- atoms. There are four shorter (2.46 Å) and four longer (2.51 Å) Ce–O bond lengths. P5+ is bonded in a tetrahedral geometry to four equivalent O2- atoms. All P–O bond lengths are 1.56 Å. O2- is bonded in a 1-coordinate geometry to two equivalent Ce3+ and one P5+ atom.

36 MATERIALS SCIENCE↗