Abstract Steric aspects of the short-range solvation of proton transfer complexes between 2, 4-dinitrophenol and various secondary amines was studied in benzene—DMSO and benzene—dioxane mixed solvent systems. Diisopropylamine was hindered when compared with diethylamine, and 2, 2, 6, 6-tetramethylpiperidine was hindered when compared with 2, 6-dimethylpiperidine in forming the proton transfer complex. The smaller electron- ...
