NMR Spectroscopic Evidence of Lewis Acid-Lewis Base Complex Formation of Perfluoroborane with Uranyl β-Diketonato Complexes

被引：2
|
作者：
Miyamoto, Naomi [1 ]
Tsukahara, Takehiko [1 ]
Ikeda, Yasuhisa [1 ]
机构：
[1] Tokyo Inst Technol, Nucl Reactors Res Lab, Meguro Ku, Tokyo 1528550, Japan
来源：
CHEMISTRY LETTERS | 2012年 / 41卷 / 05期
关键词：
PENTAVALENT-URANYL; COORDINATION; ION; WATER; FUNCTIONALIZATION; SPECIATION; EXCHANGE; DYNAMICS; LIGANDS; ANALOGS;
D O I：
10.1246/cl.2012.513
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Interactions between B(C6F5)(2)OH and [UO2(dfh)(2)(dmso)] or [UO2(acac)(2)(dmso)] in toluene have been investigated by B-11- and F-19 NMR measurements. The results showed that one or two B(C6F5)(2)OH molecules coordinate to the oxo ligands of [UO2(acac)(2)(dmso)] through B, i.e., O=U=O center dot center dot center dot B (1:1) and B center dot center dot center dot O=U=O center dot center dot center dot B (2:1) complexes based on Lewis acid-Lewis base (LA-LB) interactions are formed, while such LA-LB interactions are not observed in [UO2(dfh)(2)(dmso)]. Furthermore, it was clarified that the 2:1 complex becomes predominant with decreasing temperatures.
引用
收藏
页码：513 / 515
页数：3
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