SALTING-OUT THIN-LAYER CHROMATOGRAPHY OF TRANSITION-METAL COMPLEXES .3. INVESTIGATION OF THE BEHAVIOR OF MIXED AMINOCARBOXYLATO COBALT(III)COMPLEXES ON CELLULOSE

Salting-out thin-layer chromatography of fourteen mixed aminocarboxyla to cobalt(III) complexes (three homologous series) on cellulose has be en investigated with eight aqueous ammonium sulphate solutions. A pron ounced salting-out effect, with reversed-phase order, was observed wit h bis(aminocarboxylato) complexes, whereas with mono(aminocarboxylato) complexes such a behaviour was noticeable only at higher salt concent rations. In both cases a positive linear dependence between the R(M) v alues of the complexes and mol % of the salt in the solvent system, an d between the R(M) values and the number of carbon atoms in the hydroc arbon part of the complexes belonging to the same homologous series, w ere found. These phenomena were explained by the mechanism of non-spec ific hydrophobic interactions.