Комплексообразование ионов европия (III) в расплавленных фторидах щелочных металлов

Abstract

Sperctral research of molten EuF3-MF (M=Li, Na, K, Cs) was performed. The samples were prerepared using zone molten alkali fluorides. Absorption spectra were mesured using samples with the same amount of EuF3. The behavior of hypersensitive and common f-f transition bands was described. Absorbtion bands correspond to f-f transitions in EuF6 3- groups. The composition of EuF6 3- group second coordination sphere depends on solvent alcali cation type.