Macrocyclic disulfides for studies of sensitized photolysis of the S-S bond.

Sensitized photolysis: We describe a series of macrocyclic disulfides containing stiff stilbene (see scheme) as the intramolecular photosensitizer designed for fundamental mechanistic studies of sensitized photolysis of the S-S bond. Preliminary studies revealed weak temperature dependence of the quantum yields, which decreased exponentially with Boltzmann-weighted average separation between the S-S bond and stiff stilbene.