SPECTROSCOPIC STUDIES OF NEODYMIUM AND EUROPIUM PHOSPHORO-AZO BETA-DIKETONATES

New complexes of lanthanides (Nd, Eu) with phosphoro-azo derivatives o f beta-diketones were synthesized. Optical properties of these compoun ds were investigated and confronted with the structure and single crys tal spectra of different types of earlier reported lanthanide phosphor o-azo beta-diketonates. The exchange of the N-P-O-Me ligand group by t he N-P-NR(2) one plays only a minor role in binding character of lanth anide ions but strongly affects biological functions and properties of lanthanide systems. In vitro experiment on cytotoxicity of the sample s was performed using 10T(1/2), L(1), MCF, DETA and Me omega-132 cell lines.