SEARCH · Search NASA
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.
Ca3Pb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ca is bonded in a distorted square co-planar geometry to four equivalent Pb atoms. All Ca–Pb bond lengths are 3.59 Å. Pb is bonded to twelve equivalent Ca atoms to form a mixture of corner and face-sharing PbCa12 cuboctahedra.
Ca3PbN is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional and consists of one ammonia molecule and one Ca3Pb framework. In the Ca3Pb framework, Ca is bonded in a linear geometry to two equivalent Pb atoms. Both Ca–Pb bond lengths are 2.98 Å. Pb is bonded to six equivalent Ca atoms to form corner-sharing PbCa6 octahedra. The corner-sharing octahedral tilt angles are 0°.