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Figure 1
The crystal structure of EuAl4 with the space group I4/mmm in the periodic phase at 250 K. Depicted is the I-centred unit cell with basis vectors aI, bI and cI. Brown spheres correspond to the Eu atoms, dark-blue spheres represent Al1 atoms and green spheres stand for Al2 atoms. The shortest interatomic distances are: d(Eu—Eu) = 4.3949 (2) Å, d(Al1—Al1) = 3.1077 (1) Å, d(Al2—Al1) = 2.664 (1) Å and d(Al2—Al2) = 2.568 (4) Å.

IUCrJ
Volume 9| Part 3| May 2022| Pages 378-385
ISSN: 2052-2525
https://doi.org/10.1107/S2052252522003888