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Electron transfer in N-butylpyridinium tetrafluoroborate ionic liquid by pulse radiolysis
Fu HaiYing(付海英); Xing ZhaoGuo; Cao XiYan; Wu GuoZhong(吴国忠)
2013
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
Volume58Issue:16Pages:CONCATENATE(Sheet1!I109,-Sheet1!J109)
AbstractThe radiolysis behavior of neat pyridinium ionic liquids (ILs) and their aqueous solutions was investigated using nanosecond pulse radiolysis techniques. Radiolysis of the ionic liquids, such as N-butylpyridinium tetrafluoroborate (BuPyBF4), resulted in the formation of solvated electrons and organic radicals. Solvated electrons reacted with the pyridinium moiety to produce a pyridinyl radical, which can transfer electrons to various acceptors. The electron-transfer rate constants of the solvent-derived butylpyridinyl radicals in BuPyBF4 and in several compounds (for example, duroquinone, 4,4'-pyridine, benzophenone, and 1,1'-dimethyl-4,4'-bypyridinium dichloride) (k of the order 10(8) L/(mol s) were lower than those measured in water and in i-PrOH but were significantly higher than the diffusion-controlled rate constants estimated based on viscosity. The electron-transfer rate constants in neat BuPyBF4 were one order of magnitude faster than the diffusion-controlled values. This finding suggests that BuPyBF4 acts not only as solvent but also as active solute, such as in solvent-mediated reactions. These reactions result in electrons reaching their final destinations via intervening pyridinium groups without requiring the diffusion of a specific radical.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000319850700007
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13736
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Fu HaiYing,Xing ZhaoGuo,Cao XiYan,et al. Electron transfer in N-butylpyridinium tetrafluoroborate ionic liquid by pulse radiolysis[J]. CHINESE SCIENCE BULLETIN,2013,58(16):CONCATENATE(Sheet1!I109,-Sheet1!J109).
APA Fu HaiYing,Xing ZhaoGuo,Cao XiYan,&Wu GuoZhong.(2013).Electron transfer in N-butylpyridinium tetrafluoroborate ionic liquid by pulse radiolysis.CHINESE SCIENCE BULLETIN,58(16),CONCATENATE(Sheet1!I109,-Sheet1!J109).
MLA Fu HaiYing,et al."Electron transfer in N-butylpyridinium tetrafluoroborate ionic liquid by pulse radiolysis".CHINESE SCIENCE BULLETIN 58.16(2013):CONCATENATE(Sheet1!I109,-Sheet1!J109).
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