Synthesis, characterization and radiolytic properties of bis(oxalato)borate containing ionic liquids |
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| Authors: | Sharon I. Lall-Ramnarine Alejandra Castano Gopal Subramaniam Marie F. Thomas James F. Wishart |
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| Affiliation: | aDepartment of Chemistry, Queensborough Community College—CUNY, 222-05 56th Avenue, Bayside, NY 11364, USA;bDepartment of Chemistry and Biochemistry, Queens College—CUNY, 65-30 Kissena Boulevard, Flushing, NY 11367, USA;cChemistry Department, Brookhaven National Laboratory, Upton, NY 11973-5000, USA |
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| Abstract: | Previously unreported bis(oxalato)borate (BOB) ionic liquids (ILs) containing imidazolium, pyridinium, and pyrrolidinium cations were prepared from the corresponding halide salts by reaction with sodium bis(oxalato)borate (NaBOB), and their properties are reported. Pulse radiolysis experiments revealed that the BOB anion scavenges solvated electrons with rate constants of  3×108 M−1 s−1 in the ionic liquid C4mpyrr NTf2 and 2.8×107 M−1 s−1 in water. This reactivity indicates that BOB ILs may be too sensitive to be used as neat solvents for nuclear separations processes in high radiation fields but may still be useful for preventing criticality while processing relatively “cold” fissile actinides. |
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| Keywords: | Ionic liquid Solvated electron Pulse radiolysis Bis(oxalato)borate |
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