CONTRIBUTIONS TO THE CHEMISTRY OF THIOCOMPLEXES - COMPLEX-COMPOUNDS OF IONS WITH D(10) ELECTRONIC CONFIGURATION WITH 6-THIOACETYLAMINO-2,3-DICHLORO-QUINOXALINE

The paper reports new complex compounds of Cu(I), Zn(II), Cd(II) and H g(II) with 6-thioacetylamino-2,3-dichloro-quinoxaline (TAAQ). A correl ation of elemental analysis, UV, visible and IR spectral analysis data , conductivity measurements and molecular mass determination, suggests that these compounds are of the type: [M(TAAQ)Cl-2] in which M = Zn(I I), Cd(II), Hg(II) and [(CuCl)(2)(TAAQ)(2)]. The thioamide acts as bid entate ligand using both sulphur and nitrogen atoms of the ''thione'' groups as donors in the formation of complexes and dimerization occurs through chloride bridges.