Collect. Czech. Chem. Commun. 1986, 51, 1942-1947

A study of the medium effect of mixed solvents; The cyclohexane-nitrobenzene system

Taťjana Nevěčná and Vojtěch Bekárek

Faculty of Sciences, Palacký University, 771 46 Olomouc


Rate constants of the reaction of triethylamine with ethyl iodide (at 293.15, 313.15, 323.15, and 333.45 K) and wavenumbers of the longest wavelength band maxima of 4-nitroso-N,N-dimethylaniline and 2,6-diphenyl-4-(2,4,6-triphenyl-1-pyridinio)phenoxide were measured in nitrobenzene and thirteen mixtures of nitrobenzene with cyclohexane. The activation characteristics of the reaction of triethylamine with ethyl iodide in these media were calculated, and the correlations of rate constants and spectral data were carried out with functions of relative permittivity and refractive index of the media used and mutually with each other.