Relaxation mechanism of molecular systems containing hydrogen bonds and free energy temperature dependence of reaction of charges recombination within Rhodobacter sphaeroides RC.

The mechanism of protonic relaxation is shown to take place in molecular systems containing hydrogen bonds. The mechanism arises from the proton redistribution between two stable states on hydrogen bond lines. This redistribution occurs due to changes of hydrogen bond double well potential, brought about by changes of the electronic state of a molecular system.