- 作者: B. El-Shetary; S. L. Stefan; F. Zidan; M. S. Moez
- 作者服務機構: Chemistry Dept. Faculty of Education, Ain Shams University, Cairo, Egypt.
- 中文摘要: Acid dissociation constants of substituted-5-pyrazolone dyes have been determined potentiometrically in 75% (v/v) dioxane-water mixture at 30.degree.C and <0.1 ionic strength. The stability constants of their 1:1 and 1:2 chelates with tweleve trivalent lanthanide ions have been determined under the same conditions. The data were correlated and the results were taken to explain the stabilization of such chelates by dative .pi.-bonding between Ln (III) and the ligand.
- 英文摘要: --
- 中文關鍵字: 1-phenyl-3-methyl-4-(sulphonic phenyl hydrazo)-5-pyrazolone ligands; stability of Lanthanide (III).
- 英文關鍵字: 1-phenyl-3-methyl-4-(sulphonic phenyl hydrazo)-5-pyrazolone ligands; stability of Lanthanide (III).