Effect of Several Auxiliary Ligands on the Extraction of Manganese(II) With 4-Benzoyl-3-methyl-l-phenyl-5-pyrazolone
نویسندگان
چکیده
The effect of 2-methyl pyridine N-oxide, 4-methyl pyridine N-oxide, pyridine N-oxide, 8-aminoquinoline, dibenzyl sulfoxide on the extraction of manganese(II) by 4-benzoyl-3-methyl-1-phe-' nyl-5-pyrazolone (BMPP) in benzene from an aqueous buffered solution was studied. Synergistic enhancement was observed in all systems. Equilibrtum extraction constants and adduct formation constants were calculated. The results showed that synergistic extraction is due to the formation of adducts such as Mn(BMPP)2B where B represents the auxiliary ligand.
منابع مشابه
Structures of l-Phenyl-3-methyl-pyrazolone-5 and its Benzoyl Derivatives+
The structures of l-phenyl-3-methyl-pyrazolone-5 and its benzoyl derivatives have been investigated by means of IR, UV, NMR, and mass spectral spectroscopy. 1-Phenyl 3-methyl-pyrazolone-5 is found to exist as a zwitter ion in the solid state, in the 5-keto form in chloroform and dioxane, and in the 5-hydroxy form in pyridine. The 4-benzoyl derivative of l-phenyl-3-methyl-pyrazolone-5 is shown t...
متن کاملThe Metal Chelates of Heterocyclic /3-Diketones and their Derivatives, Part IV New Mixed Ligand Tetrakis Complexes of Lanthanides Derived from tris-Acetylacetonates and Some 4-Acyl Pyrazolones
The preparation of Lanthanon octa-coordinated mixed chelates with different types of ligands is uncommon. Thompson and Loraas [1] have shown the presence of octacoordinated mixed chelates in solution. Recently, Dutt and Sur [2] have actually isolated several mixed tetrakis compounds of La, Pr, Nd, and Sm with three acetylacetone (Acac) molecules, the other ligands being propionylacetone or benz...
متن کاملKomplexbildung und Metallextraktion mit heterocyclischen /?-Dicarbonylverbindungen im Vergleich. Struktur von 3-Phenyl-4-benzoyl-isoxazol-5-on
E rhard U hlem ann*, Alwin Friedrich, G erald Hinsche, W ulfhard Mickler, Uwe Schilde Institut für Anorganische Chemie und Didaktik der Chemie. Universität Potsdam, Postfach 601553, D-14415 Potsdam Z. Naturforsch. 50b, 37-42 (1995); eingegangen am 11. Juli 1994 3-Phenyl-4-benzoyl-5-isoxazolone, Crystal Structure, Thermal Stability, Complex Stability Constants, Dioxane/Water-Mixtures Acid consta...
متن کاملSolvent extraction of metals with potassium-dihydro-bispyrazolyl-borate.
The extraction of Cu(II), Ni(II), Co(II), Cd(II), Zn(II), Pb(II) and Mn(II) with potassium-dihydro-bispyrazolyl-borate (H(2)BPz(2)(-)) in dichloromethane has been studied. Extraction constants (logK(ex)) have been calculated for all metal systems and were compared with those obtained with dibenzoylmethane (DBM), thenoyltrifluoroacetone (HTTA) and 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (HPMBP)...
متن کاملSolvent extraction of divalent metal ions with azacrown ether substituted acylpyrazolones.
Novel 4-acyl-5-pyrazolones having aza-15-crown-5 (HPMP-A15C5) and aza-18-crown-6 (HPMP-A18C6) moieties as an intramolecular synergist have been synthesized by simple coupling reactions between 1-phenyl-3-methyl-4-chloroacetyl-5-pyrazolone and the corresponding azacrown ethers. The solvent extraction of the divalent metal ions (Mn(2+), Co(2+), Ni(2+), Cu(2+), Zn(2+), Cd(2+) and Pb(2+)) were exam...
متن کامل