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.
HgSiP2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional and consists of four mercury molecules and one SiP2 framework. In the SiP2 framework, Si4- is bonded in a body-centered cubic geometry to eight equivalent P1+ atoms. All Si–P bond lengths are 2.85 Å. P1+ is bonded to four equivalent Si4- atoms to form a mixture of edge and corner-sharing PSi4 tetrahedra.
HgSiP2 is Chalcopyrite structured and crystallizes in the tetragonal I-42d space group. The structure is three-dimensional and consists of four mercury molecules and one SiP2 framework. In the SiP2 framework, Si4- is bonded to four equivalent P1+ atoms to form corner-sharing SiP4 tetrahedra. All Si–P bond lengths are 2.28 Å. P1+ is bonded in a bent 120 degrees geometry to two equivalent Si4- atoms.