The features of cyclotetrapyrroles interaction with high-power laser radiation in solutions and in porous xerogels doped with cyclotetrapyrroles are discussed on the base of investigation of spectral-luminescent, protonacceptor properties, photochemical and nonlinear characteristics. The capacity of exhibition of specific physical-chemical properties depending on the structure of interacting pairs and intensity of the incident-irradiation is shown.
cyclotetrspyrrole compounds, optical limitation, power laser radiation, phototransformations, porous silica xerogels