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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on K2PtCl4 by Materials Project

K2PtCl4 crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. K1+ is bonded in a body-centered cubic geometry to eight equivalent Cl1- atoms. All K–Cl bond lengths are 3.30 Å. Pt2+ is bonded in a square co-planar geometry to four equivalent Cl1- atoms. All Pt–Cl bond lengths are 2.33 Å. Cl1- is bonded to four equivalent K1+ and one Pt2+ atom to form a mixture of distorted edge, face, and corner-sharing ClK4Pt square pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K2PtCl6 by Materials Project

K2PtCl6 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. K1+ is bonded to twelve equivalent Cl1- atoms to form KCl12 cuboctahedra that share corners with twelve equivalent KCl12 cuboctahedra, faces with six equivalent KCl12 cuboctahedra, and faces with four equivalent PtCl6 octahedra. All K–Cl bond lengths are 3.54 Å. Pt4+ is bonded to six equivalent Cl1- atoms to form PtCl6 octahedra that share faces with eight equivalent KCl12 cuboctahedra. All Pt–Cl bond lengths are 2.35 Å. Cl1- is bonded in a distorted single-bond geometry to four equivalent K1+ and one Pt4+ atom.

36 MATERIALS SCIENCE↗