Mild template synthesis of a macrocyclic Cu(II) chelate complex with 1,10-diamino-1,10-dimercapto-5,6-dimethyl-4,7-diazadeca-1,4,6,9-tetraene-3,8-dithione in Cu2[Fe(CN)6]-gelatin-immobilized matrix implantates

• Published in: Russian journal of coordination chemistry Vol. 34; no. 2; pp. 102 - 105
• Main Authors: Kazymova, M. A., Shumilova, T. A., Mikhailov, O. V., Solov’eva, S. E.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 2008
• Subjects: Chemistry; Chemistry and Materials Science; Inorganic Chemistry; Physical Chemistry; Dicarbonyl; Coordination Chemistry; Dithione; Dione; Template Synthesis
• ISSN: 1070-3284; 1608-3318
• DOI: 10.1134/S107032840802005X

Complexation in Cu 2 [Fe(CN) 6 ]-gelatin-immobilized matrix implantates in contact with alkaline (pH > 10) aqueous solutions containing propane-1,3-dithioamide and butane-2,3-dione, as well as with an ethanolic solution containing the same organic compounds, was studied. It was found that room-temperature complexation in the gelatin matrix gives a macrocyclic complex CuL 1 with a tetradentate N,S,S,N-donor ligand via a template synthesis, while complexation in solution at room and higher temperatures yields only a bischelate Cu(II) complex with monodeprotonated propane-1,3-dithioamide. Schemes of the complexation processes were proposed. It was demonstrated that when propane-1,3-dithioamide and butane-2,3-dione are in direct contact in solution, the above N,S,S,N-donor ligand was formed in neither the presence nor the absence of Cu 2+ .