REVERSIBLE PROTON TRANSFER IN THE 2,3,5,6-TETRACHLOROPHENOL-N,N-DIMETHYLANILINE HYDROGEN-BONDED COMPLEX STUDIED BY LOW-TEMPERATURE 1H NMR SPECTROSCOPY

Article abstract of DOI:10.1016/0022-2860(89)80060-2

Low temperature 1H NMR studies of the bridging OHN signal in the hydrogen-bonded complex formed between 2,3,5,6-tetrachlorophenol and N,N-dimethylaniline in C2H5Cl solution have shown that separate signals for the molecular and ion-pair forms of the complex can be observed below -135 deg C (138 K).Analyses of the observed lineshapes have yielded values for the thermodynamic quantities ΔH⁰, ΔS⁰ as well as for the activation quantities ΔH^<*>, ΔS^<*>.