Molecular Modelling and Spectroscopic Studies of the Interactions Between Chelating and Electron-Donor Metal Extractants: The System Tri-N-Octylphosphine Oxide - 3-Phenyl-4-Benzoyl-Isoxazol-5-One ( ‘Hpbi‘ ) in Wet Toluene and Chloroform.

Goetz-Grandmont, G.J.; Roqai, M. Chaoui; Brunette, J.P.; Kaufmann, G.

doi:10.1080/07366299608918362

Cited by 21 publications

(10 citation statements)

References 22 publications

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“…In chloroform, no noticeable influence of HPBI-solvatant interaction upon the extraction was observed, due to the competitive interaction of the diluent itself with the solvatants by P=O…HCCl 3 H-bond formation [18]. These interactions follow the same order as the S-HPBI ones for the same reasons.…”

Section: Interactions Between the Extractants (Equilibrium 3)mentioning

confidence: 49%

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Synergistic extraction of some divalent metal cations with 3-phenyl-4-benzoylisoxazol-5-one and P=O donor ligands in chloroform

2000

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Abstract. The synergistic extraction of some divalent cations (Cd, Cu, Mn and Zn) in chloroform, with 3-phenyl-4-benzoylisoxazol-5-one (HPBI) in the presence of various synergistic agents: trioctylphosphine oxide (TOPO), octyl(phenyl)(N,N-diisobutylcarbamoylmethyl)phosphine oxide (CMPO) and bis(diphenylphosphinyl)methane (BDPPM) has been studied. It is compared with the extraction in toluene. Due to various factors (e.g. extractant-diluent or extractant-synergist interactions), the stoichiometry of the extracted species, the selectivity and the magnitude of the synergism depend on the diluent and on the synergist. In chloroform, the extraction with HPBI and TOPO follows the order Cu > Zn > Mn > Cd (Mn > Zn in toluene). In chloroform, the synergistic extraction of cadmium follows the order BDPPM > CMPO > TOPO (TOPO > CMPO in toluene). The formation constants of Cd(PBI) + and Cd(PBI) 2 in aqueous medium have been evaluated.

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Section: Interactions Between the Extractants (Equilibrium 3)mentioning

confidence: 49%

“…In toluene, HPBI, like HPMBP, interacts with TOPO by Hbond formation between its exchangeable H atom and the phosphoryl oxygen [18]. The HPBI-TOPO interactions are quite important (logK int = 1.85) in comparison to the HPMBP-TOPO ones (logK int = 0.85) [11,12].…”

Section: Interactions Between the Extractants (Equilibrium 3)mentioning

confidence: 99%

Synergistic extraction of some divalent metal cations with 3-phenyl-4-benzoylisoxazol-5-one and P=O donor ligands in chloroform

2000

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“…Considering the pK^ of HPBI (1.1) and the basicity of TOPO (K = 8.9) strong interaction between these two ligands is possible [17]. At the feed conditions employed in the present studies, Eqs.…”

Section: Calculationsmentioning

confidence: 99%

Facilitated Transport of Americium(III) from Nitric Acid Media using 3-Phenyl-4-Benzoyl-5-Isoxazolone and Tri-N-Octyl Phosphine Oxide in Dodecane as the Carrier

1999

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Carrier mediated transport of Am(III) was investigated employing flat-sheet supported liquid membrane technique using a mixture of tri-n-octyl phosphine oxide (TOPO) and 3-phenyl-4-benzoyl-5-isoxazolone (HPBI) in dodecane as the carrier. At a fixed concentration of TOPO (0.2 M), the permeability coefficient (P) increased linearly (from 7X10" cm/s to 2.5 X 10"' cm/s) with HPBI concentration (2.41 X 10 ' M to 2.50 X 10"^ M) and remained constant thereafter. The P values tend to vary with the feed acidity as well as with strip conditions. The solvent extraction experiments revealed more efficient Stripping with 6 M HNO, as compared to 1 M oxalic acid while an opposite trend was observed in the transport studies. It was possible to achieve >90% transport of Am(ni) in about 4 hours time when the feed acidity <1 M HNO, and the carrier concentration was 0.1 M HPBI -I-0.2 M TOPO.

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“…Using spectroscopic methods, evidence was given of such interactions in toluene, the more acidic HPBI leading to a stronger alteration of the P=O bond than HPMBP. Moreover, in chloroform which also interacts with TOPO, minor alterations are shown with stoichiometric amounts of HPBI, while the e ffect of HPMBP is negligible [15]. The interaction constants in toluene have recently been investigated by liquidliquid methods in (Na, H) NO 3 1M medium:…”

Section: Topo -Hl Interactionsmentioning

confidence: 99%

“…Moreover, the stereochemistry of the ligand in its chelated forms, i.e. in its metal complexes [12][13][14] and as a free ligand in the solid and in non-polar solvents [15], shows that it occupies a rather weak solid angle allowing the extraction of species with higher apparent coordination numbers than HPMBP, e.g. Zn(PBI) 2 ( TO P O ) 2 [2] or Sr(PBI) 2 (TOPO) 3 [3].…”

Section: Introductionmentioning

confidence: 99%

Extraction of indium(III) from chloride and nitrate media with 3-phenyl-4-benzoylisoxazol-5-one, HPBI, and tri-n-octylphosphine oxide

1998

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Abstract. The extraction processes of indium(III) from media of various complexing ability, chloride and nitrate, in toluene or chloroform, have been elucidated. Indium is extracted from 1 M nitrate medium as In(PBI) 3 with HPBI alone and as I n ( P B I ) 3 ( TO P O ) 2 with TO P O -H P B I mixtures, while it is extracted from 1 M chloride medium as In(PBI) 3 a n d InCl x (PBI) 3-x (TOPO) 2 . The complexation of In in the aqueous phases, the extraction of nitric acid and various solute-solute and solute-diluent interactions in the organic phases must be taken into account in the processes. The results are compared with those obtained previously with 1-phenyl-3-methyl-4-benzoyl-pyrazol-5-one under the same conditions.

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Molecular Modelling and Spectroscopic Studies of the Interactions Between Chelating and Electron-Donor Metal Extractants: The System Tri-N-Octylphosphine Oxide - 3-Phenyl-4-Benzoyl-Isoxazol-5-One ( ‘Hpbi‘ ) in Wet Toluene and Chloroform.

Cited by 21 publications

References 22 publications

Synergistic extraction of some divalent metal cations with 3-phenyl-4-benzoylisoxazol-5-one and P=O donor ligands in chloroform

Synergistic extraction of some divalent metal cations with 3-phenyl-4-benzoylisoxazol-5-one and P=O donor ligands in chloroform

Facilitated Transport of Americium(III) from Nitric Acid Media using 3-Phenyl-4-Benzoyl-5-Isoxazolone and Tri-N-Octyl Phosphine Oxide in Dodecane as the Carrier

Extraction of indium(III) from chloride and nitrate media with 3-phenyl-4-benzoylisoxazol-5-one, HPBI, and tri-n-octylphosphine oxide

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