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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on CsEu3 by Materials Project

CsEu3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Cs is bonded in a distorted body-centered cubic geometry to fourteen Eu atoms. There are eight shorter (4.13 Å) and six longer (4.77 Å) Cs–Eu bond lengths. There are two inequivalent Eu sites. In the first Eu site, Eu is bonded in a distorted body-centered cubic geometry to four equivalent Cs and four equivalent Eu atoms. All Eu–Eu bond lengths are 4.13 Å. In the second Eu site, Eu is bonded in a 8-coordinate geometry to six equivalent Cs and eight equivalent Eu atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CsEu by Materials Project

CsEu crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Cs is bonded to six equivalent Cs and six equivalent Eu atoms to form CsCs6Eu6 cuboctahedra that share corners with eighteen equivalent CsCs6Eu6 cuboctahedra, edges with six equivalent CsCs6Eu6 cuboctahedra, edges with twelve equivalent EuCs6Eu6 cuboctahedra, faces with eight equivalent CsCs6Eu6 cuboctahedra, and faces with twelve equivalent EuCs6Eu6 cuboctahedra. All Cs–Cs bond lengths are 4.46 Å. All Cs–Eu bond lengths are 4.76 Å. Eu is bonded to six equivalent Cs and six equivalent Eu atoms to form EuCs6Eu6 cuboctahedra that share corners with eighteen equivalent EuCs6Eu6 cuboctahedra, edges with six equivalent EuCs6Eu6 cuboctahedra, edges with twelve equivalent CsCs6Eu6 cuboctahedra, faces with eight equivalent EuCs6Eu6 cuboctahedra, and faces with twelve equivalent CsCs6Eu6 cuboctahedra. All Eu–Eu bond lengths are 4.46 Å.

36 MATERIALS SCIENCE↗