- 作者: Min-Shiun Chao and Shih-Liang Huang
- 中文摘要: In order to study the difference on the equilibrium, spectral properties of copper(II) complexes of diamino diamide and diamino diamine, new tetradentate ligands, 4,7-dimethyl-4,7-diazadecanediamide (4,7-N,N-Me2-L-2,2,2) and 1,10-diamino-4,7-dimethyl-4,7-diazadecane (4,7-N,N-Me2-3,2,3-tet), have been synthesized. Synthetic procedures for these new ligands are described. Their protonation constants have been determined potentiometrically in 0.10 M KCl at 25.0 °C. The formation of their copper(II) complexes have been investigated quantitatively by the potentiometric technique and by the measurement of their electronic spectra.
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