Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “RePO5”

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.

Materials Data on RePO5 by Materials Project

RePO5 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Re5+ is bonded to six O2- atoms to form ReO6 octahedra that share corners with three equivalent ReO6 octahedra and corners with three equivalent PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 13–23°. There are a spread of Re–O bond distances ranging from 1.84–2.08 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent ReO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 19–43°. There are a spread of P–O bond distances ranging from 1.52–1.62 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Re5+ atoms. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Re5+ and one P5+ atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent P5+ atoms. In the fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Re5+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Re5+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a linear geometry to two equivalent Re5+ atoms.

36 MATERIALS SCIENCE↗