Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “F-H-P”

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.

3 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on PHF2 by Materials Project

PHF2 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is zero-dimensional and consists of four difluorophosphine molecules. P3+ is bonded in a 2-coordinate geometry to one H1- and two F1- atoms. The P–H bond length is 1.43 Å. Both P–F bond lengths are 1.62 Å. H1- is bonded in a single-bond geometry to one P3+ atom. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one P3+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one P3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PHF4 by Materials Project

HPF4 is Magnesium structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four tetrafluorophosphanium molecules. P5+ is bonded in a distorted trigonal bipyramidal geometry to one H1- and four F1- atoms. The P–H bond length is 1.40 Å. There are a spread of P–F bond distances ranging from 1.56–1.64 Å. H1- is bonded in a single-bond geometry to one P5+ atom. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one P5+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one P5+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one P5+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PH2F3 by Materials Project

PH2F3 crystallizes in the orthorhombic Cmc2_1 space group. The structure is zero-dimensional and consists of four phosphorus trifluoride molecules. P5+ is bonded in a distorted trigonal bipyramidal geometry to two equivalent H1- and three F1- atoms. Both P–H bond lengths are 1.40 Å. There are a spread of P–F bond distances ranging from 1.58–1.67 Å. H1- is bonded in a single-bond geometry to one P5+ atom. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one P5+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one P5+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one P5+ atom.

36 MATERIALS SCIENCE↗