Spectroscopic studies on the proton transfer and hydrogen bonding interactions between p-nitrophenol and aliphatic tertiary amines |
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| Affiliation: | 1. Department of Chemistry, Federal University of Santa Maria (UFSM), CEP 97105-900, Santa Maria, RS, Brazil;2. Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, United States;3. Lepol, Department of Physics, Federal University of Santa Maria (Universidade Federal de Santa Maria — UFSM), Santa Maria, Brazil |
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| Abstract: | The interaction of p-nitrophenol with aliphatic tertiary amines, namely triethylamine, tributyl-amine and trioctylamine, has been examined in a variety of solvents by means of electronic absorption spectroscopy. The acid—base interaction in these systems leads to various types of complexes depending upon the dielectric constant of the medium. The equilibrium data for different kinds of equilibria have been evaluated and discussed. The pK-equilibrium constant plots are found to be linear. |
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