Low-temperaturic template synthesis of macrocyclic cobalt(III) chelates with (N,N,S,S)-donor atomic ligands in the cobalt(II)-dithiooxamide-formaldehyde and cobalt(II)-dithiooxamide-glyoxal systems in the Co-2[Fe(CN)(6)]-gelatin-immobilized matrices

The complexing processes in the triple cobalt(II)-dithiooxamide-formaldehyd e and cobalt(II)-dithiooxamide-glyoxal systems taking place in the cobalt(I I)hexacyanoferrate(II) gelatin-immobilized matrix in contact with aqueous a lkaline solutions (pH ca. 12) containing (dithiooxamide + formaldehyde) and (dithiooxamide + glyoxal), have been studied. Template synthesis leading t o macrocyclic coordination compounds with tetradentate N,N,S,S-donor ligand s-(2,8-dithio-3,7-diaza-5-oxanonan-dithioamide-1,9) and (2,7-dithio-3,6-dia zaoctadien-3,5-dithioamide-1,8) with Co-II-Co-III redox-process occurs unde r these specific conditions where dithiooxamide, formaldehyde and glyoxal a re the ligand synthons.