Turanov, Alexander N. published the artcileTripodal organophosphorus ligands as synergistic agents in the solvent extraction of lanthanides(III). Structure of mixed complexes and effect of diluents, Computed Properties of 4551-69-3, the publication is Polyhedron (2019), 276-288, database is CAplus.
The solvent extraction of lanthanides (III) (except for Pm) from chloride medium (at μ = 0.1) into an organic phase containing 4-benzoyl-3-methyl-1-phenyl-5-pyrazolone (HPy) and neutral tripodal ligands on the triphenylphosphine oxide platform with anchored carbamoyl side arms (2-R2NC(O)CH2OC6H4)3PO, where R = Bu (L1) and cyclo-Hex (L2) has been studied. A considerable synergistic effect (up to 107) has been observed in the presence of neutral ligands L1 or L2 in the organic phase containing HPy. The stoichiometry of the Ln(III) extracted species has been determined by slope anal. and the equilibrium constants have been calculated It has been found that the lanthanides(III) ions are extracted with mixtures of HPy and neutral ligands L1 or L2 in toluene as LnPy3L species. The [LaPy3(H2O)2], and new [LaPy3(L1)] and [LaPy3(L2)] complexes have been synthesized and characterized via elemental anal. and IR spectroscopy. Solution structure of the above complexes has been examined by IR and multinuclear (1H, 13C, and 31P) NMR spectroscopy in toluene-d8 and CDCl3. The effect of diluents on synergistic extraction and the solution structure of mixed complexes are discussed.
Polyhedron published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C11H14O2, Computed Properties of 4551-69-3.
Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics