Showing papers by "Mark L. Dietz published in 2007"
TL;DR: Detailed characterization of an ambient-temperature "liquid POM" comprising the Lindqvist salt of the trihexyl(tetradecyl) phosphonium cation indicates that it exhibits conductivity and viscosity comparable to those of the one previously described inorganic-organic POM-IL hybrid but with substantially improved thermal stability.
Abstract: Pairing of a Keggin or Lindqvist polyoxometalate (POM) anion with an appropriate tetraalkylphosphonium cation is shown to yield the first members of a new family of ionic liquids (ILs). Detailed characterization of one of them, an ambient-temperature “liquid POM” comprising the Lindqvist salt of the trihexyl(tetradecyl) phosphonium cation, by voltammetry, viscometry, conductimetry, and thermal analysis indicates that it exhibits conductivity and viscosity comparable to those of the one previously described inorganic−organic POM-IL hybrid but with substantially improved thermal stability.
143 citations
TL;DR: The pairing of selected polyoxometalate anions with appropriate tetraalkylphosphonium cations is shown to yield an original family of ionic liquids, among them an ambient-temperature "liquid POM".
Abstract: The pairing of selected polyoxometalate (POM) anions with appropriate tetraalkylphosphonium cations is shown to yield an original family of ionic liquids, among them an ambient-temperature “liquid POM”.
72 citations
TL;DR: The extent of this solubilization is shown to diminish with increasing hydrophobicity of the IL cation and decreasing extractant basicity, which raises concerns as to the viability of ILs as "drop in replacements" for traditional organic solvents in the solvent extraction of metal ions.
52 citations