15 research outputs found

    Switchable Phase Behavior of [HBet][Tf<sub>2</sub>N]–H<sub>2</sub>O upon Neodymium Loading: Implications for Lanthanide Separations

    No full text
    Task-specific ionic liquids (TSILs) present an opportunity to replace traditional organic solvents for metal dissolution or separation. To date, a thorough investigation of the physical properties of biphasic TSIL–H<sub>2</sub>O systems and the effects of metal loading is lacking. In this work, the change in the liquid–liquid equilibrium of [HBet]­[Tf<sub>2</sub>N]–H<sub>2</sub>O upon the addition of Nd­(III) is investigated by cloud-point measurements. The addition of Nd(III), drops the upper critical solution temperature by over 20 °C. Further investigation of the [HBet]­[Tf<sub>2</sub>N]–Nd(III) system led to the formation of single crystals of [Nd<sub>2</sub>(H<sub>2</sub>O)<sub>8</sub>(μ<sub>2</sub>-Bet)<sub>2</sub>(μ<sub>3</sub>-Bet)<sub>2</sub>]­[(Cl)<sub>2</sub>(Tf<sub>2</sub>N)<sub>4</sub>] from the TSIL phase

    Switchable Phase Behavior of [HBet][Tf<sub>2</sub>N]–H<sub>2</sub>O upon Neodymium Loading: Implications for Lanthanide Separations

    No full text
    Task-specific ionic liquids (TSILs) present an opportunity to replace traditional organic solvents for metal dissolution or separation. To date, a thorough investigation of the physical properties of biphasic TSIL–H<sub>2</sub>O systems and the effects of metal loading is lacking. In this work, the change in the liquid–liquid equilibrium of [HBet]­[Tf<sub>2</sub>N]–H<sub>2</sub>O upon the addition of Nd­(III) is investigated by cloud-point measurements. The addition of Nd(III), drops the upper critical solution temperature by over 20 °C. Further investigation of the [HBet]­[Tf<sub>2</sub>N]–Nd(III) system led to the formation of single crystals of [Nd<sub>2</sub>(H<sub>2</sub>O)<sub>8</sub>(μ<sub>2</sub>-Bet)<sub>2</sub>(μ<sub>3</sub>-Bet)<sub>2</sub>]­[(Cl)<sub>2</sub>(Tf<sub>2</sub>N)<sub>4</sub>] from the TSIL phase
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