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The atomic structure of crystals of the complex [Tb(NO ) (Acac)(Phen) ]·H O, (AA - acetylacetonate anion, Phen - 1,10-phenanthroline) characterized by an intensive luminescence and triboluminescence has been determined by means of an X-ray structural analysis method. Centrosymmetric crystals have a monoclinic syngony: a = 11.2298(1), b = 9.6492(1), c = 13.2745(1) Å, β = 101.290(1), space group P2/n, Z = 2, ρ = 1.790 g/cm . The crystal structure is represented by individual С Н N O Tb complexes linked through van der Waals interactions with clearly expressed cleavage planes. The Tb(III) atom coordination polyhedron reflects the state of a distorted square antiprism. The structural aspects of the suggested model of formation of the triboluminescent properties were considered and the role of the cleavage planes discussed. Copyright © 2016 John Wiley & Sons, Ltd.

Triboluminescence properties of chemical compound based on Terbium (III) - Tb (АА)3Phen - are studied by means of new experimental technique developed in this work. It is found that the synthesized complex manifests 20% higher integral intensity of triboluminescence in comparison with that for compound based on Europium (III) –ТЕА[Eu (DBM)4] which is one of best triboluminophores in the visible spectral range.