Synthèse
Volume 24, Numéro 1, Pages 9-20
2018-04-30

Synthesis And Characterization Of New Vanadium Salcylaldoxime Based Complexes Isolated By Hydrothermal Process



Authors : Boutamine Sultana . Slaouti Hennia . Belkhettab Ilyes . Hank Zakia .

Abstract

In this paper, the results of a systematic study of the reactivity of salicylaldoxime (C7H7NO2)(H2L1), with aqueous solutions of V(IV) using hydrothermal synthesis are reported. These reactions lead to the formation of gray-blue compounds : (1) adduct of the formula Na4[V6IVV4VO22H2(OH)6(C7H6O2)2(C7H5NO)].6H2O (A1), (2) another adduct of formula H6[V3IVV7VO25(OH)3 (C7H8NO2) (C7H5NO)2(C7H6O2)].5H2O (A2) and (3) a trimetric coordination complex of the formula [V3O5(C7H5NO)3(C7H4NO2)3(C7H7NO2)3]•(H2O) (C1). The obtained compounds were characterized by means of elemental analysis, conductometry, UV-Visible, Fourier transform infrared absorption spectroscopy (FTIR), 1H and 51V nuclear magnetic resonance (NMR), EPR, magnetic measurements, mass spectroscopy and cyclic voltammetry

Keywords

hydrothermal synthesis, vanadium complexes, salicylaldoxime

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