Crystallographic features of ammonium fluoro­elpasolites: dynamic orientational disorder in crystals of (NH4)3HfF7 and (NH4)3Ti(O2)F5

Udovenko, A.A.; Karabtsov, A.A.; Laptash, N.M.

doi:10.1107/S2052520616017534

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 1
Disordered structure of (NH₄)₃HfF₇ (a) and the isolated polyhedron HfF₇³⁻ (b). Green, blue and white balls are the F, N and H atoms, respectively (the central Hf atoms are not seen). Displacement ellipsoid plots are shown at 50% probability.

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 73| Part 1| February 2017| Pages 1-9

https://doi.org/10.1107/S2052520616017534

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