Journal
POLYHEDRON
Volume 57, Issue -, Pages 30-38Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2013.04.012
Keywords
Speciation in solution; Solid-state structure; Coordination compound; Eu(III) emission spectroscopy
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Funding
- University of Bologna
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In this paper a pyridine-based racemic ligand [N,N'-bis(2-pyridylmethylidene)-1,2-(R,R + S,S)-cyclohexanediamine], 1, and its new trifluoromethansulfonate (CF3SO3-, triflate) and nitrate Eu(III) complexes were studied, both in the solid state and in acetonitrile (AN) solution. In the case of the triflate complexes, a combination of structural and spectroscopic evidences, revealed the different nature of the species in solution and in the solid state. On the contrary, the nitrate adduct in the solid state presented similar features as the complex present in AN solution. All triflate and nitrate complexes detected in solution are highly stable. (C) 2013 Elsevier Ltd. All rights reserved.
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