Search NASA⌕ Search

SEARCH · Search NASA

Results for “Eu3(SF2)2”

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 Eu3(SF2)2 by Materials Project

Eu3F4S2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Eu+2.67+ sites. In the first Eu+2.67+ site, Eu+2.67+ is bonded in a body-centered cubic geometry to eight equivalent F1- atoms. All Eu–F bond lengths are 2.42 Å. In the second Eu+2.67+ site, Eu+2.67+ is bonded in a 9-coordinate geometry to five equivalent S2- and four equivalent F1- atoms. There are one shorter (2.84 Å) and four longer (2.92 Å) Eu–S bond lengths. All Eu–F bond lengths are 2.62 Å. S2- is bonded in a 5-coordinate geometry to five equivalent Eu+2.67+ atoms. F1- is bonded to four Eu+2.67+ atoms to form a mixture of distorted edge and corner-sharing FEu4 tetrahedra.

36 MATERIALS SCIENCE↗