SEARCH · Engineering Papers

Results for “F-Ir”

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.

SourceResearch connectionFrom yearThrough year

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

3 records

All sources NASA NTRS DOE OSTI

DOE OSTI2020

Materials Data on IrF4 by Materials Project

IrF4 crystallizes in the orthorhombic Fdd2 space group. The structure is three-dimensional. Ir4+ is bonded to six F1- atoms to form corner-sharing IrF6 octahedra. The corner-sharing octahedral tilt angles are 48°. There are a spread of Ir–F bond distances ranging from 1.89–2.05 Å. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Ir4+ atom. In the second F1- site, F1- is bonded in a distorted bent 120 degrees geometry to two equivalent Ir4+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on IrF3 by Materials Project

IrF3 is Upper Bainite-like structured and crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Ir3+ is bonded to six equivalent F1- atoms to form corner-sharing IrF6 octahedra. The corner-sharing octahedral tilt angles are 47°. All Ir–F bond lengths are 2.04 Å. F1- is bonded in a distorted bent 120 degrees geometry to two equivalent Ir3+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on IrF6 by Materials Project

IrF6 is beta Np structured and crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of four IrF6 clusters. Ir is bonded in an octahedral geometry to six F atoms. All Ir–F bond lengths are 1.88 Å. There are three inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one Ir atom. In the second F site, F is bonded in a single-bond geometry to one Ir atom. In the third F site, F is bonded in a single-bond geometry to one Ir atom.

36 MATERIALS SCIENCE↗