Short-range solvation patterns of pentachlorophenol, triethylamine, and their reaction products by cyclic ethers in cyclohexane

Article abstract of DOI:10.1016/S0022-2860(98)00344-5

The proton-transfer indicator reaction method is applied to the pentachlorophenol-triethylamine proton-transfer equilibrium K(PT) undergoing solvation by tetrahydropyran, 1,3-dioxane, and 1,4-dioxane in bulk cyclohexane. A predicted decrease in K(PT) occurs owing to hydrogen bonding solvation of the free phenol upon increasing ether concentration. However, the data unexpectedly suggest that hydrogen bonding solvation by the ethers to the proton of the proton-transfer adduct also occurs.