A study of charge transfer complexes of chloranil with some donors by conductometric measurements

The charge-transfer complexes of chloranil as acceptor component, with p-phenylene diamine and p-ethoxyaniline as donors have been studied in methyl alcohol by conductometric measurements. The stoichiometry of charge transfer complexes has been determined from the position of the conductivity maximum obtained during the titration of donor solution with acceptor solution. The stoichiometry of the p-phenylene diamine—chloranil is 3:2 and that of the p-ethoxyaniline—chloranil is 1:2. The molar conductivity coefficients for all these systems at temperatures 20°, 25°, 30°, 35° and 40°C have been calculated, and are found to increase with increase in temperature in all the systems studied here.