作者:Dianzhong feng、Min Wang、Bo Wang
DOI:10.1016/s0277-5387(00)84481-2
日期:1992.1
The complexes, Ln(Qdca).nH2O, of quinoxaline-2,3-dicarboxyamic acid (abb. HQdca) with 13 lanthanide(III) metals have been prepared and characterized by elemental analysis, IR, UV, molar conductance, TG and DTA. The data show that the ligand coordinates to the metal ion through a nitrogen atom in the amide group and an oxygen atom in the carboxyl group. The complexes are more stable thermally than the ligand and are non-electrolytes in methanol and DMF.