Abstract
An atomic structure of complex Et4N[Eu(ТТA)4] (TTA is the thenoyltrifluoroacetonate anion, Et4N+ is the tetraethylammonium cation) possessing strong luminescence and triboluminescence was determined by X-ray crystallography. The crystal system of centrosymmetric crystals is monoclinic: a = 10.2495(1) Å, b = 20.2162(3) Å, c = 23.5788(3) Å, β = 102.551(1)°, space group P21/c, Z = 4, d calc = 1.625 g cm–3. The crystals of the compound have an isle structure, which comprises individual complex anions [Eu(TTA)4]– and tetraethylammonium cations Et4N+. The structural aspects of a possible model for the formation of triboluminescent properties were considered, the role of cleavage planes and disordering was discussed.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 2427–2432, October, 2015.
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Bukvetskii, B.V., Petrochenkova, N.V. & Mirochnik, A.G. Crystal structure and triboluminescence of tetraethylammonium tetrakis(thenoyltrifluoroacetonato)europium. Russ Chem Bull 64, 2427–2432 (2015). https://doi.org/10.1007/s11172-015-1173-2
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DOI: https://doi.org/10.1007/s11172-015-1173-2