Zhao Xiao
2001
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Journal
Chinese Journal of Inorganic Chemistry
Abstract
C-functionalized dioxotetraamine ligand L, 6- (5 '- (8'-hydroxyquinolinic) -methylene) - 1, 4, 8, 11-tetraazaundecane- 5, 7-dione, containing two independent chelating groups, was synthesized and characterized by elemental analysis, 1H MNR, IR and MS spectra. At 25. 0 1 0. 1℃, I = 0. lmol. din-3 NaNO3, pH titration has been performed to study the stability properties of L-5-substituted-1, 10-phenthamroline-Cu (Ⅱ) with proton, copper (Ⅱ) and cobalt (Ⅱ), respectively. The ternary complexes have been show to possess interesting property due to the coordination interaction of the three chelating groups, 5-substituted-1, 10-phenanthroline, 8-hydroxyquinoline and dioxotetraamine. In addition, the possible coordination structures for the titration species have been suggested on the basis of titration results and literature report.