Dramatic Changes in the Solubilities of Ions Induced by Ligand Addition in Biphasic System D 2 O/DNO 3 //[C 1 C 4 im][Tf 2 N]: A Phenomenological Study
Résumé
The solubilities of C 1 C 4 im + and Tf 2 N − in nitric aqueous phases have been measured for several ligand types and concentrations (0.04 M tributylphosphine oxide, 0.05 M N,N′-dimethyl-N,N′-dibutylmalonamide, 0.10 M 1-methyl-3-[4-(dibutylphosphinoyl)butyl]-3H-imidazol-1-ium bis(trifluoromethylsulphonyl)imidate, and 1.1 M N,N-dihexyloctanamide). The data evidence a significant difference between the solubilities of the cations and anions of the ionic liquid as a consequence of several ion-exchange and/or ion-pairing mechanisms involving all ions present in the system as well as the protonation/nitric-extraction ability of the ligand.
Domaines
Chimie inorganique
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Dramatic Changes in the Solubilities of Ions Induced by LigandAddition in Biphasic System D2O-DNO3-[C1C4im][Tf2N] APhenomenological Study.pdf (791.19 Ko)
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