SEARCH · Engineering Papers
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
PtCd is Tetraauricupride structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Pt2- is bonded in a distorted body-centered cubic geometry to eight equivalent Cd2+ atoms. All Pt–Cd bond lengths are 2.89 Å. Cd2+ is bonded in a body-centered cubic geometry to eight equivalent Pt2- atoms.
Pt3Cd is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Pt+0.67- is bonded to eight equivalent Pt+0.67- and four equivalent Cd2+ atoms to form distorted PtCd4Pt8 cuboctahedra that share corners with twelve equivalent PtCd4Pt8 cuboctahedra, edges with eight equivalent CdPt12 cuboctahedra, edges with sixteen equivalent PtCd4Pt8 cuboctahedra, faces with four equivalent CdPt12 cuboctahedra, and faces with fourteen equivalent PtCd4Pt8 cuboctahedra. All Pt–Pt bond lengths are 2.86 Å. All Pt–Cd bond lengths are 2.86 Å. Cd2+ is bonded to twelve equivalent Pt+0.67- atoms to form CdPt12 cuboctahedra that share corners with twelve equivalent CdPt12 cuboctahedra, edges with twenty-four equivalent PtCd4Pt8 cuboctahedra, faces with six equivalent CdPt12 cuboctahedra, and faces with twelve equivalent PtCd4Pt8 cuboctahedra.
Pt3Cd crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. there are two inequivalent Pt+0.67- sites. In the first Pt+0.67- site, Pt+0.67- is bonded to ten Pt+0.67- and two equivalent Cd2+ atoms to form a mixture of distorted corner, edge, and face-sharing PtCd2Pt10 cuboctahedra. There are eight shorter (2.85 Å) and two longer (2.88 Å) Pt–Pt bond lengths. Both Pt–Cd bond lengths are 2.90 Å. In the second Pt+0.67- site, Pt+0.67- is bonded to eight Pt+0.67- and four equivalent Cd2+ atoms to form distorted PtCd4Pt8 cuboctahedra that share corners with twelve equivalent PtCd4Pt8 cuboctahedra, edges with sixteen PtCd2Pt10 cuboctahedra, and faces with fourteen PtCd2Pt10 cuboctahedra. There are two shorter (2.88 Å) and two longer (2.90 Å) Pt–Pt bond lengths. All Pt–Cd bond lengths are 2.85 Å. Cd2+ is bonded in a 10-coordinate geometry to ten Pt+0.67- atoms.