- 作者: B. P. Singh; V. K. Bhardwaj; B. R. Singh; R. Ghosh
- 作者服務機構: Department of Chemistry Sahu Jain College Najibabad-246763 INDIA
- 中文摘要:
The metal ligand stability constants of violuric acid [H2VA], N-methyl violuric acid [H2MVA], N-phenyl violuric acid [H2PVA] and N-(o-m-p) tolyl violuric acids [N-H2(o-m-p)TVA] with La(III), Ce(III), Pr(III), Nd(III), Sm(III), Eu(III), Gd(III), Dy(III), and Ho(III) have been determined potentiometrically in 50 Vol% ethanol water media at 25℃ and at an ionic strength of 0.1 M NaCLO4. The stability of the complexes follow the order of basicities of ligands and also the electron affinities of rare earths as measured by their overall ionization potential. The order of stabilities of rare earths with violuric acids is, La3+
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