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@ARTICLE{Wassermann:641240,
author = {Wassermann, Tobias B. and Sachs, Malte and Etter, Martin
and Kraus, Florian},
title = {{S}ingle {C}rystal {S}tructure {P}recludes {P}redicted
{F}erroelectricity of {U}ranium {T}rifluoride, {UF}$_3$},
journal = {Inorganic chemistry},
volume = {64},
number = {14},
issn = {0020-1669},
address = {Washington, DC},
publisher = {American Chemical Society},
reportid = {PUBDB-2025-04971},
pages = {7088 - 7095},
year = {2025},
abstract = {Single crystals of uranium trifluoride, UF$_3$, were
obtained for the first time via gas-phase crystallization,
enabling the resolution of its crystal structure using
single-crystal X-ray diffraction (SCXRD). The study reveals
that UF3 crystallizes isotypic to the tysonite structure
type in the trigonal space group P$\bar{3}$c1 (No. 165,
hP24, gfda) with lattice parameters a = 7.1510(2), c =
7.3230(4) Å, and V = 324.30(3) Å$^3$, Z = 6, at T = 100 K,
resolving long-standing structure model ambiguities from
prior studies based on powder diffraction. Merohedral
twinning complicates the diffraction data by simulating the
wrong Laue class 6/mmm. Complementary quantum chemical
calculations support the findings from this experiment,
confirming its local energetic minimum. The inversion center
in the crystal structure of UF$_3$ precludes the previously
predicted ferroelectricity.},
cin = {DOOR ; HAS-User / FS-PETRA-D},
ddc = {540},
cid = {I:(DE-H253)HAS-User-20120731 /
I:(DE-H253)FS-PETRA-D-20210408},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
DFG project G:(GEPRIS)440719683 -
Hochleistungscompute-Cluster (440719683)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
G:(GEPRIS)440719683},
experiment = {EXP:(DE-H253)P-P02.1-20150101},
typ = {PUB:(DE-HGF)16},
doi = {10.1021/acs.inorgchem.5c00450},
url = {https://bib-pubdb1.desy.de/record/641240},
}