Key words: supercritical carbon dioxide, metal complex compounds, β-diketonates
Absorption spectra of silver and europium β-diketonates dissolved in supercritical carbon dioxide and ethanol were studied. The structure of ligand UV absorption bands was measured by different solvent types and temperature as well by intense UV irradiation of solvent. The observed complex structure of ligand bands is treated by the formation of molecular dimer and, also by the formation of hydrated form of β-diketonates. The effect of silver nanoclasters synthesis under the action of UV radiation on ethanol solution of silver β-diketonate was revealed, accompanied by the degradation of ligand absorption band and formation of plasmon band at 420 nm.