Abstract

The main stages in the development of research in the field of molecular-oxygen photonics and the most important methodical approaches to investigation of the lowest singlet states of oxygen molecules in organic and aqueous solutions are briefly outlined. The contemporary views on the kinetic and radiative parameters of singlet oxygen in water and deuterium oxide as well as the results of most recent studies of the red and IR absorption bands of oxygen molecules dissolved in water under normal conditions are presented. The data are compared with the absorption and luminescence parameters of oxygen in the gas phase and in organic media. The importance of the results of these studies for specialists in various fields of knowledge from molecular photophysics and spectroscopy to photodynamic and laser medicine is emphasized.

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