Proton transfer and coordination properties of aromatic α-hydroxy hydrazones |
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Authors: | GA IbañezGM Escandar AC Olivieri |
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Institution: | Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wroclaw, Poland |
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Abstract: | The prototropic properties of two nitro derivatives of aromatic α-hydroxy hydrazones 2,4-dinitro-N-phenyl-N′(2-hydroxy-1-phenylmethylene hydrazine) and 2,4-dinitro-N-phenyl-N′(2-hydroxy-1-naphthylmethylene hydrazine] have been analysed through electronic absorption, 1H and 13C NMR and semiempirical molecular orbital methods. The metal binding properties of both compounds and of the unsubstituted hydrazones were evaluated from potentiometric and spectrophotometric data in dioxane-water mixtures. On the basis of the spectral analysis and PM3 semiempirical calculations, the structures of the formed complexes were proposed. |
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Keywords: | Spectroscopy and potentiometry Proton transfer Coordination chemistry Aromatic α-hydroxy hydrazones |
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