STUDIES OF NEODYMIUM, EUROPIUM AND TERBIUM PICRATE COMPLEXES WITH BENZYL-T-BUTYL SULFOXIDE

Complexes of the formula Ln(pic)(3) . 4L (Ln=Nd, Eu, Tb; pic, picrate; L, benzyl-t-butylsulphoxide) were obtained either by precipitation by ligand addition to a hot aqueous solution of the lanthanide salt or by simply melting a mixture of components (''one-pot'' synthesis). The compounds were characterized by Ln titration with EDTA, C, H and N elemental analysis, IR spectra, absorption spectra of the neodymium compound, emission spectra of the europium compound and thermal analysis.