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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Uranium halide complexes in ionic liquids: an electrochemical and structural study
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Uranium halide complexes in ionic liquids: an electrochemical and structural study

机译:离子液体中的卤化铀络合物:电化学和结构研究

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摘要

The electrochemistry of the salts, [emim](2)[UBr6] and [emim](2)[UO2Br4] ([emim] = 1-ethyl-3-methylimidazolium), has been investigated in both a basic and an acidic bromoaluminate(III) ionic liquid. In the basic ionic liquid, the hexabromo salt undergoes a one-electron reversible reduction process at a stationary glassy carbon disc electrode, while the tetrabromodioxo salt was reduced to a uranium(IV) species by an irreversible two-electron process with the simultaneous transfer of oxide to the ionic liquid. On the other hand, dissolution of either of the salts in an acidic bromoaluminate( III) ionic liquid resulted in the formation of the same electroactive species. The solid state structures of the uranium chloride salts, [emim](2)[UCl6] and [emim](2)[UO2Cl4], have previously been reported, but have now been re-evaluated using a new statistical model developed in our group, to determine the presence or absence of weak hydrogen bonding interactions in the crystalline state.
机译:已在碱性和酸性溴铝酸盐中研究了[emim](2)[UBr6]和[emim](2)[UO2Br4]([emim] = 1-乙基-3-甲基咪唑鎓)的盐的电化学(三)离子液体。在碱性离子液体中,六溴盐在固定的玻璃碳圆盘电极上经历了单电子可逆还原过程,而四溴二氧杂盐则通过不可逆的两电子过程被同时还原成铀(IV)物种。氧化成离子液体。另一方面,两种盐中的任何一种在酸性溴铝酸盐(III)离子液体中的溶解都会导致形成相同的电活性物质。先前已报道了氯化铀盐[emim](2)[UCl6]和[emim](2)[UO2Cl4]的固态结构,但现在使用我们开发的新统计模型对它进行了重新评估。确定基态中是否存在弱氢键相互作用。

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