The atomic structure of crystals of the complex [Tb(NO3 )2 (Acac)(Phen)2 ]·H2 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, ρcalc = 1.790 g/cm3 . The crystal structure is represented by individual С29 Н25 N6 O9 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.
Keywords: crystal structure; terbium(III) complexes; triboluminescence.
Copyright © 2016 John Wiley & Sons, Ltd.