Photocyclic processes of an oxygen-bridged [15]annulenyl ion, whose state-to-state changes are very similar to those of bacteriorhodopsin

Abstract

The photochemical behaviour of the hydroxy[15]annulenyl ion TH⁺ and ethoxy[15]annulenyl ions (TEt⁺) is described; TH⁺ participates in a bacteriorhodopsin-like photocyclic process, giving very similar state-to-state changes in the transitions it undergoes.