ACTIVATION PARAMETERS FOR ELECTRON TRANSFER BETWEEN CYCLOOCTATETRAENE DIANION AND ANION RADICAL

Rate constants and activation parameters have been determined for electron transfer between cyclooctatetraene (COT) dianion and the anion radical for various COT-solvent-M (where M = Li, Na, K) systems. As determined by electron spin and nuclear magnetic resonance, the rate constant for electron transfer (eq 1) is very dependent upon the solvent and the counterion. Even in ammonia, a relatively protic and ionizing solvent, the rate of electron transfer is dependent upon the counterion. Possible line-broadening mechanisms in this solvent are discussed. © 1969, American Chemical Society. All rights reserved.