Hydrogen bonding in chloroform-thioether systems: An N.M.R. spectroscopic study

The association constants of molecular complexes of chloroform with dimethyl sulphide, diethyl sulphide, tetrahydrothiophen and thiophen have been obtained by the use of N.M.R. spectroscopy over a temperature range from -50 to +50oC. The enthalpies of formation have been found from these results and used in the ideal associated model to predict the excess enthalpies of mixing.