a series of schiff bases of ni(ii) and cu(ii) using acetylacetone (acac), salicylaldehyde (sal), ethylenediamine (en), and o-phenylendiarnine (dabe) were prepared and characterized. the electronic spectra of some copper chelates in various organic solvents depend strongly on the solvent used and the d-d band of cu(ii) shifts to red with the increase of the donor number (dn) of solvent. the colo...

Fluorescence analysis is a simple and highly sensitive method for detection of small amounts biologically active substances. In this study, complexation terbium(III) chelates with 1,10-phenanthroline ascorbic acid (AA) luminescent properties complexes were investigated. The influence pH solubilization by micellar solutions nonionic, cationic, anionic surfactants on fluorescence was studied. que...