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.
NaGaTe2 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. Na1+ is bonded in a 8-coordinate geometry to eight equivalent Te2- atoms. All Na–Te bond lengths are 3.51 Å. Ga3+ is bonded to four equivalent Te2- atoms to form edge-sharing GaTe4 tetrahedra. All Ga–Te bond lengths are 2.68 Å. Te2- is bonded in a 6-coordinate geometry to four equivalent Na1+ and two equivalent Ga3+ atoms.
NaGaTe2 is Chalcopyrite structured and crystallizes in the tetragonal I-42d space group. The structure is three-dimensional. Na1+ is bonded to four equivalent Te2- atoms to form distorted NaTe4 tetrahedra that share corners with four equivalent NaTe4 tetrahedra and corners with eight equivalent GaTe4 tetrahedra. All Na–Te bond lengths are 3.12 Å. Ga3+ is bonded to four equivalent Te2- atoms to form GaTe4 tetrahedra that share corners with four equivalent GaTe4 tetrahedra and corners with eight equivalent NaTe4 tetrahedra. All Ga–Te bond lengths are 2.66 Å. Te2- is bonded to two equivalent Na1+ and two equivalent Ga3+ atoms to form distorted corner-sharing TeNa2Ga2 tetrahedra.