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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2015, 15 (4), 48—55. DOI: 10.18083/LCAppl.2015.4.48
Complexation of 1-Alkyl-4-Aza-1-Azoniabicyclo[2.2.2]Octane Bromides with Transition Metal Cations in Acetone
E. P. Zhil'tsova1, M. R. Ibatullina1,2, S. S. Lukashenko1, T. N. Pashirova1, M. P. Kutyreva2, L. Ya. Zakharova1
Author affiliations 1A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of RAS,
8 Arbuzov St., Kazan, 420088, Russia E-mail: Zhiltsova@iopc.ru 2Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., Kazan, 420008, Russia
Abstract The complexation of 1-hexadecyl-4-aza-1-azoniabicyclo[2.2.2]octane bromide and 1-ethyl-4-aza-1-azoniabicyclo[2.2.2]octane bromide with nitrate Co (II) and bromide Cu (II) in acetone has been investigated by spectrophotometry (Ostromyslenskii – Job method and molar ratio method). The characteristics of the complexes (stoichiometry and stability constant) and the complexation process (the Gibbs free energy change) were determined. Their dependence on the nature of the metal and the ligand structure (its hydrophobicity) was established.