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Results for “Bi-O-Pt”

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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Bi2Pt2O7 by Materials Project

Bi2Pt2O7 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Pt4+ is bonded to six equivalent O2- atoms to form corner-sharing PtO6 octahedra. The corner-sharing octahedral tilt angles are 50°. All Pt–O bond lengths are 2.06 Å. Bi3+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are two shorter (2.28 Å) and six longer (2.56 Å) Bi–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Bi3+ atoms to form corner-sharing OBi4 tetrahedra. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Pt4+ and two equivalent Bi3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Bi3Pt3O11 by Materials Project

Pt3Bi3O11 crystallizes in the cubic Pn-3 space group. The structure is three-dimensional. Pt+4.33+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing PtO6 octahedra. The corner-sharing octahedral tilt angles are 55°. There are a spread of Pt–O bond distances ranging from 2.02–2.04 Å. There are two inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Bi–O bond distances ranging from 2.28–2.77 Å. In the second Bi3+ site, Bi3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are two shorter (2.43 Å) and six longer (2.48 Å) Bi–O bond lengths. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of edge and corner-sharing OBi4 tetrahedra. In the second O2- site, O2- is bonded in a distorted L-shaped geometry to two equivalent Pt+4.33+ and two equivalent Bi3+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Pt+4.33+ and two Bi3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BiPtO3 by Materials Project

PtBiO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Pt5+ is bonded to six equivalent O2- atoms to form PtO6 octahedra that share corners with six equivalent PtO6 octahedra and faces with eight equivalent BiO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Pt–O bond lengths are 2.04 Å. Bi1+ is bonded to twelve equivalent O2- atoms to form BiO12 cuboctahedra that share corners with twelve equivalent BiO12 cuboctahedra, faces with six equivalent BiO12 cuboctahedra, and faces with eight equivalent PtO6 octahedra. All Bi–O bond lengths are 2.88 Å. O2- is bonded in a distorted linear geometry to two equivalent Pt5+ and four equivalent Bi1+ atoms.

36 MATERIALS SCIENCE↗