The Radiation Chemistry of Ionic Liquids: A Review

Solvent Extraction and Ion Exchange

Volumn 32, Issue 6, 2014, Pages 563-583

  Mincher, Bruce J ^a   Wishart, James F ^b  

^a IDAHO NATIONAL LABORATORY   (United States)

^b BROOKHAVEN NATIONAL LABORATORY   (United States)

Author keywords

free radicals; ionic liquids; radiation chemistry; solvent extraction

Indexed keywords

ACTINIDES; EXPERIMENTS; FISSION PRODUCTS; FREE RADICALS; NUCLEAR FUEL REPROCESSING; RADIATION CHEMISTRY; RADIOLYSIS; SOLVENT EXTRACTION;

KINETIC INFORMATION; LIQUID SOLUTION; POSTIRRADIATION; PRODUCT IDENTIFICATION; PULSE-RADIOLYSIS; RADIOCHEMICAL SEPARATION; REPLACEMENT SOLVENT; STEADY-STATE RADIOLYSIS;

IONIC LIQUIDS;

EID: 84961290545     PISSN: 07366299     EISSN: 15322262     Source Type: Journal    
DOI: 10.1080/07366299.2014.925687     Document Type: Article

References (117)

1. Welton, T. Ionic liquids in Green Chemistry. Green Chem. 2011, 13, 225-225.
2. Visser A. E.; Swatloski, R. P.; Reichert, W. M.; Mayton, R.; Sheff, S.; Wierzbicki, A.; Davis, Jr., J. H.; Rogers, R. Task-specific ionic liquids for the extraction of metal ions from aqueous solutions. Chem. Comm. 2001, 135-136.
3. Nockemann, P.; Thijs, B.; Pittois, S.; Thoen, J.; Glorieux, C.; Van Hecke, K.; Van Meervelt, L.; Kirchner, B.; Binnemans, K. Task-specific ionic liquid for solubilizing metal oxides. J. Phys. Chem. B 2006, 110, 20978-20992.
4. 2 coordination. RSC Advances 2012, 2, 8526-8530.
5. Harmon, C. D.; Smith, W. H.; Costa, D. A. Criticality calculations for plutonium metal at room temperature in ionic liquid solutions. Radiat. Phys. Chem. 2001, 60, 157-159.
6. Binnemans, K. Lanthanides and actinides in ionic liquids. Chem. Rev. 2007, 107, 2592-2614.
7. Mekki, S.; Wai, C. M.; Billard, I.; Moutiers, G.; Burt, J.; Yoon, B.; Wang, J. S.; Gaillard, C.; Ouadi, A.; Hesemann, P. Extraction of lanthanides from aqueous solution by using room-temperature ionic liquid and supercritical carbon dioxide in conjunction. Chem. Eur. J. 2006, 12, 1760-1766.
8. Jensen, M. P.; Neuefeind, J.; Beitz, J. V.; Skanthakumar, S.; Soderholm, L. Mechanisms of metal ion transfer into room-temperature ionic liquids: The role of anion exchange. J. Am. Chem. Soc. 2003, 125, 15466-15473.
9. Dai, S.; Ju, Y. H.; Barnes, C. E. Solvent extraction of strontium nitrate by a crown ether using room-temperature ionic liquids. Dalton Trans. 1999, 1201-1202.
10. Visser, A. E.; Swatlowski, R. P.; Reichert, W. M.; Griffin, S. T.; Rogers, R. D. Traditional extractants in nontraditional solvents: Groups 1 and 2 extraction by crown ethers in room-temperature ionic liquids. Ind. Eng. Chem. Res. 2000, 39, 3596-3604.
11. Chun, S.; Dzyuba, S. V.; Bartsch, R. A. Influence of structural variation in room-temperature ionic liquids on the selectivity and efficiency of competitive alkali metal salt extraction by a crown ether. Anal. Chem. 2001, 73, 3737-3741.
12. Dietz, M. L.; Dzielawa, J. A. Ion-exchange as a mode of cation transfer into room-temperature ionic liquids containing crown ethers: implications for 'greenness' of ionic liquids as diluents in liquid-liquid extraction. Chem. Comm. 2001, 2124-2125.
13. Jensen, M. P.; Dzielawa, J. A.; Rickert, P.; Dietz, M. L. EXAFS investigations of the mechanism of facilitated ion transfer into a room-temperature ionic liquid. J. Am. Chem. Soc. 2002, 124, 10664-10665.
14. Shen, Y.; Tan, X.; Wang, L.; Wu, W. Extraction of the uranyl ion from the aqueous phase into an ionic liquid by diglycolamide. Sep. Pur. Technol. 2011, 78, 298-302.
15. Dietz, M. L.; Dzielawa, J. A.; Laszak, I.; Young, B. A.; Jensen, M. P. Influence of solvent structural variations on the mechanism of facilitated ion transfer into room-temperature ionic liquids. Green Chem. 2003, 5, 682-685.
16. Murali, M. S.; Bonville, N.; Choppin, G. R. Uranyl ion extraction into room temperature ionic liquids: Species determination by ESI and MALDI-MS. Solvent Extr. Ion Exch. 2010, 28, 495-509.
17. Cocalia, V. A.; Jensen, M. P.; Holbrey, J. D.; Spear, S. K.; Stepinski, D. C.; Rogers, R. D. Identical extraction behavior and coordination of trivalent or hexavalent f-element cations using ionic liquid and molecular solvents. Dalton Trans. 2005, 1966-1971.
18. 2N as a case study. Solvent Extr. Ion Exch. 2011, 29, 577-601.
19. Mincher, M. E.; Quach, D. L.; Liao, Y. J.; Mincher, B. J.; Wai, C. M. The partitioning of americium and the lanthanides using tetrabutyldiglycolamide (TBDGA) in octanol and in ionic liquid solution. Solvent Extr. Ion Exch. 2012, 30, 735-747.
20. Sun, X.; Luo, H.; Dai, S. Mechanistic investigation of solvent extraction based on anion-functionalized ionic liquids for selective separation of rare earths. J. Chem. Soc. Dalton Trans. 2013, 42, 8270-8275.
21. Visser, A. E.; Jensen, M. P.; Laszak, I.; Nash, K. L.; Choppin, G. R.; Rogers, R. D. Uranyl coordination environment in hydrophobic ionic liquids: An in situ investigation. Inorg. Chem. 2003, 42, 2197-2199.
22. Visser, A. E.; Rogers, R. D. Room-temperature ionic liquids: new solvents for f-element separations and associated solution chemistry. J. Solid State Chem. 2003, 171, 109-113.
23. Nakashima, K.; Kubota, F.; Maruyama, T.; Goto, M. Ionic liquids as a novel solvent for lanthanide extraction. Anal. Sci. 2003, 19, 1097-1098.
24. 2N] as a case study. RSC Advances 2013, 2, 10736-10744.
25. Giridhar, P.; Venkatesan, K. A.; Srinivasan, T. G.; Vasudeva Rao, P. R. Extraction of uranium(VI) from nitric acid medium by 1.1 M tri-n-butylphosphate in ionic liquid diluent. J. Radioanal. Nucl. Chem. 2005, 265, 31-38.
26. Wang, J. S.; Sheaff, C. N.; Yoon, B.; Addleman, R. S.; Wai, C. M. Extraction of uranium from aqueous solutions by using ionic liquid and supercritical carbon dioxide in conjunction. Chem. Eur. J. 2009, 15, 4458-4463.
27. Pribylova, G. A.; Smirnov, I. V.; Novikov, A. P. Effect of ionic liquids on the extraction of americium by diphenyl(dibutyl) carbamoylmethyl phosphine oxide in dichloroethane from nitric acid solutions. J. Radioanal. Nucl. Chem. 2013, 295, 83-87.
28. Yoon, S. J.; Lee, J. G.; Tajima, H.; Yamasaki, A.; Kiyono, F.; Nakazato, T.; Tao, H. Extraction of lanthanide ions from aqueous solution by bis(2-ethylhexyl)phosphoric acid with room-temperature ionic liquids. J. Ind. Eng. Chem. 2010, 16, 350-354.
29. Rout, A.; Karmakar, S.; Venkatesan, K. A.; Srinivasan, T. G.; Rao, P. R. V. Room temperature ionic liquid diluents for the mutual separation of europium(III) from americium(III). Sep. Purif. Technol. 2011, 81, 109-115.
30. Billard, I.; Ouadi, A.; Gaillard, C. Liquid-liquid extraction of actinides, lanthanides, and fission products by use of ionic liquids: From discovery to understanding. Anal. Bioanal. Chem. 2011, 400, 1555-1566.
31. Sun, X. Q.; Luo, H. M.; Dai, S. Ionic liquids-based extraction: A promising strategy for the advanced nuclear fuel cycle. Chem. Rev. 2012, 112, 2100-2128.
32. Rao, P. R. V.; Venkatesan, K. A.; Rout, A.; Srinivasan, T. G.; Nagarajan, K. Potential applications of room temperature ionic liquids for fission products and actinide separation. Sep. Sci. Technol. 2012, 47, 204-222.
33. Kolarik, Z. Ionic liquids: How far do they extend the potential of solvent extraction of f-elements? Solvent Extr. Ion Exch. 2013, 31, 24-60.
34. Takao, K.; Bell, T. J.; Ikeda, Y. Actinide chemistry in ionic liquids. Inorg. Chem. 2013, 52, 3459-3472.
35. 2N): A combined experimental and theoretical study. Inorg. Chem. 2005, 44, 852-861.
36. Swatloski, R. P.; Holbrey, J. D.; Rogers, R. D. Ionic liquids are not always green: hydrolysis of 1-butyl-3-methylimidazolium hexafluorophosphate. Green Chem. 2003, 5, 361-363.
37. Villagran, C.; Deetlefs, M.; Pitner, W. R.; Hardacre, C. Quantification of halide in ionic liquids using ion chromatography. Anal. Chem. 2004, 76, 2118-2123.
38. Shkrob, I. A.; Chemerisov, S. D.; Wishart, J. F. The initial stages of radiation damage in ionic liquids and ionic liquid-based extraction systems. J. Phys. Chem. B 2007, 111, 11786-11793.
39. Shkrob, I. A.; Marin, T. W.; Chemerisov, S. D.; Wishart, J. F. Radiation induced redox reactions and fragmentation of constituent ions in ionic liquids. 1. Anions. J. Phys. Chem. B 2011, 115, 3872-3888.
40. 2N. Dalton Trans. 2006, 2526-2534.
41. Wishart, J. F.; Shkrob, I. A. The radiation chemistry of ionic liquids and its implications for their use in nuclear fuel processing. In: Ionic Liquids: From Knowledge to Application; Plechkova, N. V.; Rogers, R. D.; Seddon, K. R., eds.; American Chemical Society, Washington, DC, 2009.
42. Mincher, B. J.; Modolo, G.; Mezyk, S. P. Review article: The effects of radiation chemistry on solvent extraction: 1. Conditions in acidic solution and a review of TBP radiolysis. Solvent Extr. Ion Exch. 2009, 27, 1-25.
43. Mincher, B. J.; Modolo, G.; Mezyk, S. P. Review article: The effects of radiation chemistry on solvent extraction: 2. A review of fission product extraction. Solvent Extr. Ion Exch. 2009, 27, 331-353.
44. Mincher, B. J.; Modolo, G.; Mezyk, S. P. Review article: The effects of radiation chemistry on solvent extraction: 3. A review of actinide and lanthanide extraction. Solvent Extr. Ion Exch. 2009, 27, 579-606.
45. Mincher, B. J.; Modolo, G.; Mezyk, S. P. Review article: The effects of radiation chemistry on solvent extraction: 4. Separation of trivalent actinides and considerations for radiation-resistant solvent systems. Solvent Extr. Ion Exch. 2010, 28, 415-436.
46. Pikaev, A. K.; Kabakchi, S. A.; Egorov, G. F. Some radiation chemical aspects of nuclear engineering. Radiat. Phys. Chem. 1998, 31, 789-803.
47. 4+. Radiokhimiya 1981, 23, 825-831.
48. 3 by gas-liquid chromatography. II. Formation and characterization of high molecular weight organophosphates. Sep. Sci. Technol. 2001, 36, 2863-2883.
49. Mincher, B. J.; Mezyk, S. P.; Elias, G.; Groenewold, G. S.; Riddle, C. L.; Olson, L. G. The radiation chemistry of CMPO: Part 1. Gamma radiolysis. Solvent Extr. Ion Exch. 2013, 31, 715-730.
50. Fermvik, A.; Berthon, L.; Ekberg, C.; Englund, S.; Retergan, T.; Zorz, N. Radiolysis of solvents containing C5-BTBP: Identification of degradation products and their dependence on absorbed dose and dose rate. Dalton Trans. 2009, 6421-6430.
51. 3 by gas-liquid chromatography. I. Formation of diluent degradation products and their role in Pu retention behavior. Sep. Sci. Technol. 2001, 36, 1463-1478.
52. Venkatesan, K. A.; Robertselvan, B.; Anthony, M. P. Srinivasan, T. G. Vasudeva Rao, P. R. Physicochemical and plutonium retention properties of hydrolytic and radiolytically degraded tri-n-amylphosphate. Solvent Extr. Ion Exch. 2006, 24, 747-763.
53. Tahraoui, A.; Morris, J. H. Decomposition of solvent extraction media during nuclear reprocessing: literature review. Sep. Sci. Technol. 1995, 30, 2603-2630.
54. Wishart, J. F.; Rao, B. S. M. Recent Trends in Radiation Chemistry; World Scientific Publishing Co.: Singapore, 2010.
55. Belloni, J.; Douki, T.; Mostafavi, M.; Spotheim-Maurizot, M. Radiation Chemistry: From Basics to Applications in Material and Life Sciences; EDP Sciences: Paris, 2008.
56. Wishart, J. F.; Nocera, D. G. Photochemistry and Radiation Chemistry: Complementary Methods for the Study of Electron Transfer; Advances in Chemistry Series Vol. 254, American Chemical Society: Washington, DC, 1998.
57. Behar, D.; Neta, P.; Schultheisz, C. Reaction kinetics in ionic liquids as studied by pulse radiolysis: Redox reactions in the solvents methyltributylammonium bis(trifluoromethylsulfonyl)imide and N-butylpyridinium tetrafluoroborate. J. Phys. Chem. A 2002, 106, 3139-3147.
58. Neta, P.; Behar, D.; Grodkowski, J. Pulse radiolysis studies of reaction kinetics in ionic liquids. In: Ionic Liquids as Green Solvents: Progress and Prospects, Ch. 31; Rogers, R. D.; Seddon, R. S., eds.; ACS Symposium Series 856, American Chemical Society, Washington, DC, 2003.
59. Marcinek, A.; Zielonka, J.; Ge{ogonek}bicki, J.; Gordon, C. M.; Dunkin, I. R. Ionic liquids: Novel media for characterization of radical ions. J. Phys. Chem. A. 2001, 105, 9305-9309.
60. Allen, D.; Baston, G.; Bradley, A. E.; Gorman, T.; Haile, A.; Hamblett, I.; Hatter, J. E.; Healey, M. J. F.; Hodgson, B.; Lewin, R.; Lovell, K. V.; Newton, B.; Pitner, W. R.; Rooney, D. W.; Sanders, D.; Seddon, K. R.; Sims, H. E.; Thied, R. C. An investigation of the radiochemical stability of ionic liquids. Green Chem. 2002, 4, 152-158.
61. Skrzypczak, A.; Neta, P. Diffusion-controlled electron-transfer reactions in ionic liquids. J. Phys. Chem. A 2003, 107, 7800-7803.
62. •- radicals in the ionic liquid methyltributylammonium bis(trifluoromethylsulfonyl)imide and in other solvents. J. Phys. Chem. A 2002, 106, 11130-11134.
63. •- intermediates in the ionic liquid methyltributylammonium bis[(trifluoromethyl)sulfonyl]imide. Pulse radiolysis study. Nukleonika 2005, 50, S35-S38.
64. Takahashi, K.; Sakai, S.; Tezuka, H.; Hiejima, Y.; Katsumura, Y.; Watanabe, M. Reaction between diiodide anion radicals in ionic liquids. J. Phys. Chem. B 2007, 111, 4807-4811.
65. Takahashi, K.; Tezuka, H.; Satoh, T.; Katsumura, Y.; Watanabe, M.; Crowell, R. A.; Wishart, J. F. Kinetic salt effects on an ionic reaction in ionic liquid/methanol mixtures: Viscosity and coulombic screening effects. Chem. Lett. 2009, 38, 236-237.
66. Wishart, J. F.; Neta, P. Spectrum and reactivity of the solvated electron in the ionic liquid methyltributylammonium bis(trifluoromethylsulfonyl)imide. J. Phys. Chem. B 2003, 107, 7261-7267.
67. -) in aqueous solution. J. Phys. Chem. Ref. Data 1988, 17, 513-886.
68. Wishart, J. F. Radiation chemistry of ionic liquids: Reactivity of primary species. In: Ionic Liquids as Green Solvents; Progress and Prospects, Ch. 31; Rogers, R. D.; Seddon, R. S., eds.; ACS Symposium Series 856, American Chemical Society, Washington, DC, 2003.
69. Takahashi, K.; Sato, T.; Katsumura, Y.; Yang, J.; Kondoh, T.; Yoshida, Y.; Katoh, R. Reactions of solvated electrons with imidazolium cations in ionic liquids. Radiat. Phys. Chem. 2008, 77, 1239-1243.
70. Wishart, J. F.; Funston, A. M.; Szreder, T.; Cook, A. R.; Gohdo, M. Electron solvation dynamics and reactivity in ionic liquids observed by picosecond radiolysis techniques. Faraday Discuss. 2012, 154, 353-363.
71. Behar, D.; Gonzales, C.; Neta, P. Reaction kinetics of ionic liquids: pulse radiolysis studies of 1-butyl-3-methylimidazolium salts. J. Phys. Chem. A 2001, 105, 7607-7614.
72. Musat, R. M.; Crowell, R. A.; Takahashi, K.; Polyansky, D. E.; Thomas, M. F.; Wishart, J. F.; Katsumura, Y. Ultrafast transient absorption spectrum of the ionic liquid 1-hexyl-3-methylimidazolium bromide. (Manuscript in preparation.)
73. 4]. Radiat. Phys. Chem. 2008, 77, 877-883.
74. 2] and its decoloration. Radiat. Phys. Chem. 2009, 78, 1133-1136.
75. Guleria, A.; Singh, A. K.; Adhikari, S.; Sarkar, S. K. Radiation induced physicochemical changes in FAP (fluoro alkyl phosphate) based imidazolium ionic liquids and their mechanistic pathways: Influence of hydroxyl group functionalization of the cation. Dalton Trans. 2014, 43, 609-625.
76. McGuinness, D. S.; Cavell, K. J. Zerovalent palladium and nickel complexes of heterocyclic carbenes: Oxidative addition of organic halides, carbon-carbon coupling processes and the Heck reaction. Organometallics 1999, 18, 1596-1605.
77. 2 reaction. Ind. Eng. Chem. Res. 2006, 45, 4433-4435.
78. 6]in the presence of nitric acid. Radiat. Phys. Chem. 2009, 78, 737-739.
79. Anthony, J. L.; Anderson, J. L.; Maginn, E. J.; Brennecke, J. F. Anion effects on gas solubility in ionic liquids. J. Phys. Chem. B 2005, 109, 6366-6374.
80. 3, and dialkylphosphoric acids in room-temperature ionic liquids. J. Phys. Chem. B 2011, 115, 10927-10942.
81. Sherren, C. N.; Mu, C. H.; Webb, M. I.; McKenzie, I.; McCollum, B. M.; Brodovitch, J. C.; Percival, P. W.; Storr, T.; Seddon, K. R.; Clyburne, J. A. C.; Walsby, C. J. Merging the chemistry of electron-rich olefins with imidazolium ionic liquids: Radicals and hydrogen-atom adducts. Chem. Sci. 2011, 2, 2173-2177.
82. Shkrob, I. A. Deprotonation and oligomerization in photo-, radiolytically, and electrochemically induced redox reactions in hydrophobic alkylalkylimidazolium ionic liquids. J. Phys. Chem. B 2010, 114, 368-375.
83. Shkrob, I. A.; Marin, T. W.; Chemerisov, S. D.; Hatcher, J. S.; Wishart, J. F. Radiation induced redox reactions and fragmentation of constituent ions in ionic liquids. 2. Imidazolium cations. J. Phys. Chem. B 2011, 115, 3889-3902.
84. Shkrob, I. A.; Marin, T. W.; Luo, H.; Dai, S. Radiation stability of cations in ionic liquids. 1. Alkyl and benzyl derivatives of 5-membered ring heterocycles. J. Phys. Chem. B 2013, 117, 14372-14384.
85. Qi, M.; Wu, G.; Chen, S.; Liu, Y. Gamma radiolysis of ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate. Radiat. Res. 2007, 167, 508-514.
86. 2+. Radiat. Phys. Chem. 2013, 83, 74-78.
87. Huang, W.; Chen, S.; Liu, Y.; Fu, H.; Wu, G. Fluoride ion yield and absorption spectral analysis of irradiated imidazolium-based room-temperature ionic liquids. Radiat. Phys. Chem. 2011, 80, 573-577.
88. 2+ from aqueous solution. Dalton Trans. 2009, 7873-7875.
89. 3+ extraction. Dalton Trans. 2014, 43, 5580-5585.
90. 2+ extraction. Dalton Trans. 2013, 42, 4299-4305.
91. Le Rouzo, G.; Lamouroux, C.; Dauvois, V.; Dannoux, A.; Legand, S.; Durand, D.; Moisy, P.; Moutiers, G. Anion effect on radiochemical stability of room-temperature ionic liquids under gamma irradiation. Dalton Trans. 2009, 6175-6184.
92. 2N] under gamma irradiation. Dalton Trans. 2008, 924-931.
93. Shkrob, I. A.; Marin, T. W.; Chemerisov, S. D.; Hatcher, J.; Wishart, J. F. Toward radiation-resistant ionic liquids. Radiation stability of sulfonyl imide anions. J. Phys. Chem. B 2012, 116, 9043-9055.
94. Shkrob, I. A.; Marin, T. W.; Wishart, J. F. Ionic liquids based on polynitrile anions: Hydrophobicity, low proton affinity, and high radiolytic resistance combined. J. Phys. Chem. A 2013, 117, 7084-7094.
95. Shkrob, I. A.; Marin, T. W.; Bell, J. R.; Luo, H.; Dai, S. Radiation stability of cations in ionic liquids. 3. Guanidinium cations. J. Phys. Chem. B 2013, 117, 14400-14407.
96. Tarábek, P.; Liu, S.; Haygarth, K.; Bartels, D. M. Hydrogen gas yields in irradiated room-temperature ionic liquids. Radiat. Phys. Chem. 2009, 78, 168-172.
97. Baston, G. M. N.; Bradley, A. E.; Gorman, T.; Hamblett, I.; Hardacre, C.; Hatter, J. E.; Healy, M. J. F.; Hodgson, B.; Lewin, R.; Lovell, K. V.; Newton, G. W. A.; Nieuwenhuyzen, M.; Pitner, W. R.; Rooney, D. W.; Sanders, D. Seddon, K. R.; Sims, H. E.; Thied, R. C. Ionic liquids for the nuclear industry: A radiochemical, structural, and electrochemical investigation. In: Ionic Liquids: Industrial Applications for Green Chemistry, Ch. 13; Rogers, R. D.; Seddon, K. R., eds.; ACS Symposium Series 818, American Chemical Society, Washington, DC, 2002.
98. Spinks, J. W. T.; Woods, R. J. Introduction to Radiation Chemistry, 3rd ed.; Wiley Interscience: New York, 1990.
99. Dhiman, S. B.; Goff, G. S.; Runde, W.; LaVerne, J. A. Hydrogen production in aromatic and aliphatic ionic liquids. J. Phys. Chem. B 2013, 117, 6782-6788.
100. Mincher, B. J.; Herbst, R. S.; Tillotson, R. D.; Mezyk, S. P. γ-radiation effects on the performance of HCCD-PEG for Cs and Sr extraction. Solvent Extr. Ion Exch. 2007, 25, 747-755.
101. (aq) in aqueous solution. Radiat. Phys. Chem. 1989, 34, 753-758.
102. -2 radical ion. Sov. Electrochem. 1987, 23, 1343-1348.
103. Elias, G.; Mincher, B. J.; Mezyk, S. P.; Cullen, T. D.; Martin, L. R. Anisole nitration during gamma-irradiation of aqueous nitrite and nitrate solutions: Free radical versus ionic mechanisms. Environ. Chem. 2010, 7, 183-189.
104. Shkrob, I. A.; Marin, T. W.; Hatcher, J. L.; Cook, A. R.; Szreder, T.; Wishart, J. F. Radiation stability of cations in ionic liquids. 2. Improved radiation resistance through charge delocalization in 1-benzylpyridinium. J. Phys. Chem. B 2013, 117, 14385-14399.
105. Shkrob, I. A.; Marin, T. W. Radiation stability of cations in ionic liquids. 4. Task-specific anti-oxidant cations for nuclear separations and photolithography. J. Phys. Chem. B 2013, 117, 14797-14807.
106. Sugo, Y.; Izumi, Y.; Yoshida, Y.; Nishijima, S.; Saski, Y.; Kimura, T.; Sekine, T.; Kudo, H. Influence of diluents on radiolysis of amines in organic solution. Radiat. Phys. Chem. 2007, 76, 794-800.
107. Mincher, B. J.; Mezyk, S. P.; Elias, G.; Groenewold, G. S.; Riddle, C. L.; Olson, L. G. The radiation chemistry of CMPO. Part 1. Solvent Extr. Ion Exch. 2013, 31, 715-730.
108. Shkrob, I. A.; Marin, T. W.; Dietz, M. L. On the radiation stability of crown ethers in ionic liquids. J. Phys. Chem. B 2011, 115, 3903-3911.
109. Shkrob, I. A.; Marin, T. W.; Bell, J. R.; Luo, H.; Dai, S.; Hatcher, J. S.; Rimmer, R. D.; Wishart, J. F. Radiation-induced fragmentation of diamide extraction agents in ionic liquid diluents. J. Phys. Chem. B 2012, 116, 2234-2243.
110. 6] during extraction of strontium ions. Dalton Trans. 2008, 45, 6358-6360.
111. Xu, C.; Yuan, L.; Shen, X.; Zhai, M. Efficient removal of caesium ions from aqueous solution using a Calix crown ether in ionic liquids: Mechanism and radiation effect. Dalton Trans. 2010, 39, 3897-3902.
112. Sengupta, A.; Mohapatra, P. K.; Iqbal, M.; Verboom, W.; Huskens, J.; Godbole, S. V. Extraction of Am(III) using novel solvent systems containing a tripodal diglycolamide ligand in room temperature ionic liquids: A 'green' approach for radioactive waste processing. RSC Adv. 2012, 2, 7492-7500.
113. Mohapatra, P. K.; Sengupta, A.; Iqbal, M.; Huskens, J.; Verboom, W. Highly efficient diglycolamide-based task-specific ionic liquids: Synthesis, unusual extraction behaviour, irradiation, and fluorescence studies. Chem.-Eur. J. 2013, 19, 3230-3238.
114. Patil, A. B.; Pathak, P.; Shinde, V. S.; Godbole, S. V.; Mohapatra, P. K. Efficient solvent system containing malonamides in room temperature ionic liquids: Actinide extraction, fluorescence and radiolytic degradation studies. Dalton Trans. 2013, 42, 1519-1529.
115. Bridges, N. J.; Visser, A. E.; Williamson, M. J.; Mickalonis, J. I.; Adams, T. M. Effects of gamma radiation on electrochemical properties of ionic liquids. Radiochim. Acta 2010, 98, 243-247.
116. Schreiner, C.; Zugmann, S.; Hartl, R.; Gores, H. J. Fractional Walden Rule for ionic liquids: Examples from recent measurements and a critique of the so-called Ideal KCl Line for the Walden Plot. J. Chem. Eng. Data 2010, 55, 1784-1788.
117. Rao, Ch., J.; Venkatesan, K. A.; Tata, B. V. R.; Nagarajan, K.; Srinivasan, T. G.; Vasudeva Rao, P. R. Radiation stability of some room temperature ionic liquids. Radiat. Phys. Chem. 2011, 80, 643-649.