Tetrahedron Letters
Tetrahedron Letters
5 years ago

Synthesis, thermal stability, and computed bond dissociation energies of tetraarylphosphonium-based mesothermal ionic liquids bearing a quinoline ring system

Synthesis, thermal stability, and computed bond dissociation energies of tetraarylphosphonium-based mesothermal ionic liquids bearing a quinoline ring system
Seven new ionic liquids have been prepared which contain tetraarylphosphonium cations in which one of the aromatic groups is a quinoline ring. These compounds, which differ from each other in the point of attachment of the quinoline to the phosphorous core, were evaluated by DSC and TGA, then screened for thermal stability for 96 h at temperatures up to 300 °C. The observed thermal stabilities of the salts were found to be sensitive to the position of quinoline ring substitution, and correlated well with computed homolytic bond dissociation energies of the quinoline-P bonds.

Publisher URL: www.sciencedirect.com/science

DOI: S0040403917313746

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