Complex formation between copper(II) and thiobarbiturates.
Complex formation between copper(II) and selected thiobarbiturates was investigated via spectrophotometric procedures with absolute methanol as the solvent. The composition of the complexes proved to be 1:2 metal-ligand. The formation constants were computed using different procedures, and the results were reproducible. The electronic absorption spectra of the selected thiobarbiturates were studied. Spectrophotometric determination of the drugs was investigated.