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Results for “K-O-Pt”

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6 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on K3(PtO2)2 by Materials Project

K3(PtO2)2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent K sites. In the first K site, K is bonded in a 6-coordinate geometry to six equivalent O atoms. There are a spread of K–O bond distances ranging from 2.86–2.91 Å. In the second K site, K is bonded in a 4-coordinate geometry to four equivalent O atoms. All K–O bond lengths are 2.69 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded in a distorted square co-planar geometry to four equivalent O atoms. All Pt–O bond lengths are 2.02 Å. In the second Pt site, Pt is bonded in a distorted square co-planar geometry to four equivalent O atoms. All Pt–O bond lengths are 2.04 Å. O is bonded to four K and two Pt atoms to form a mixture of distorted face, edge, and corner-sharing OK4Pt2 octahedra. The corner-sharing octahedra tilt angles range from 0–70°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on KPtO3 by Materials Project

KPtO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. K1+ is bonded to twelve equivalent O2- atoms to form KO12 cuboctahedra that share corners with twelve equivalent KO12 cuboctahedra, faces with six equivalent KO12 cuboctahedra, and faces with eight equivalent PtO6 octahedra. All K–O bond lengths are 2.86 Å. 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 KO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Pt–O bond lengths are 2.02 Å. O2- is bonded to four equivalent K1+ and two equivalent Pt5+ atoms to form a mixture of distorted edge, face, and corner-sharing OK4Pt2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K2PtO6 by Materials Project

K2PtO6 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. K is bonded in a 9-coordinate geometry to nine equivalent O atoms. There are a spread of K–O bond distances ranging from 2.90–2.95 Å. Pt is bonded in an octahedral geometry to six equivalent O atoms. All Pt–O bond lengths are 1.90 Å. O is bonded in a 1-coordinate geometry to three equivalent K and one Pt atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K2PtO6 by Materials Project

K2PtO6 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. K is bonded in a 4-coordinate geometry to seven O atoms. There are a spread of K–O bond distances ranging from 2.73–3.13 Å. Pt is bonded in a linear geometry to two equivalent O atoms. Both Pt–O bond lengths are 1.88 Å. There are three inequivalent O sites. In the first O site, O is bonded to four equivalent K and one O atom to form a mixture of edge and corner-sharing OK4O trigonal bipyramids. The O–O bond length is 1.40 Å. In the second O site, O is bonded in a 1-coordinate geometry to two equivalent K, one Pt, and one O atom. In the third O site, O is bonded in a distorted bent 150 degrees geometry to one K and one O atom. The O–O bond length is 1.28 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K2PtO6 by Materials Project

K2PtO6 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. K is bonded in a 9-coordinate geometry to nine equivalent O atoms. There are a spread of K–O bond distances ranging from 2.65–2.94 Å. Pt is bonded in an octahedral geometry to six equivalent O atoms. All Pt–O bond lengths are 2.08 Å. O is bonded in a 1-coordinate geometry to three equivalent K, one Pt, and one O atom. The O–O bond length is 1.49 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on KPt3O4 by Materials Project

KPt3O4 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. K1+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. All K–O bond lengths are 2.54 Å. Pt+2.33+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Pt–O bond lengths are 2.07 Å. O2- is bonded to two equivalent K1+ and three equivalent Pt+2.33+ atoms to form a mixture of edge and corner-sharing OK2Pt3 trigonal bipyramids.

36 MATERIALS SCIENCE↗