Nature of intermolecular interactions and conductance in a system consisting of alkali metal ions,crown ether,anion radicals,and a polar solvent

The methods of²³Na and⁷Li NMR, EPR and conductimetry have been used to investigate the intermolecular interactions in systems consisting of the anion-radical salt of an alkali metal and a crown ether, dissolved in acetonitrile. Relations have been established between the structure of the complexes formed in solution, their magnetic resonance characteristics, and their limiting conductance. For solutions of anionradical salts in the presence of an excess of crown ether additional routes for conductance have been identified, connected with electron exchange reactions between the molecules of organic -acids in different charge states.Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 25, No. 2, pp. 173–182, March–April, 1989.