Slvent effects on charge-transfer intensities and heats of formation of chloranil complexes with aromaric hydrocarbons

Article abstract of DOI:10.1016/0584-8539(88)80086-2

The spectrometric and thermodynamic properties of the charge-transfer complexes of chloranil with aromatic hydrocarbons such as benzene, toluene, xylenes (o-, m- and p-) and mesitylene have been studied in n-heptane solvent to make a correlation between the charge-transfer intensities and the heats of formation of the complexes.The results disagree with MULLIKEN's prediction-the charge-transfer intensities decrease with increase of heats of formation.An attempt has been made to calculate the thermodynamic as well as spectrophotometric properties of these complexes free from the influence of chloranil-solvent interaction and the results thus obtained show a good correlation between the charge-transfer intensities and the heats of formation of the complexes.