Carboxyl-Functionalized Task-Specific Ionic Liquids for Solubilizing Metal Oxides

被引：213

作者：

Nockemann, Peter ^{[1
]}

Thijs, Ben ^{[1
]}

Parac-Vogt, Tatjana N. ^{[1
]}

Van Hecke, Kristof ^{[1
]}

Van Meervelt, Luc ^{[1
]}

Tinant, Bernard ^{[2
]}

Hartenbach, Ingo ^{[3
]}

Schleid, Thomas ^{[3
]}

Ngan, Vu Thi ^{[1
]}

Nguyen, Minh Tho ^{[1
]}

Binnemans, Koen ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Chem, B-3001 Louvain, Belgium

[2] Catholic Univ Louvain, Unite CSTR, B-1348 Louvain, Belgium

[3] Univ Stuttgart, Inst Anorgan Chem, D-70569 Stuttgart, Germany

来源：

INORGANIC CHEMISTRY | 2008年 / 47卷 / 21期

关键词：

D O I：

10.1021/ic801213z

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Imidazolium, pyridinium, pyrrolidinium, piperidinium, morpholinium, and quaternary ammonium bis(trifluoromethyl-sulfonyl)imide salts were functionalized with a carboxyl group. These ionic liquids are useful for the selective dissolution of metal oxides and hydroxides. Although these hydrophobic ionic liquids are immiscible with water at room temperature, several of them form a single phase with water at elevated temperatures. Phase separation occurs upon cooling. This thermomorphic behavior has been investigated by H-1 NMR, and it was found that it can be attributed to the temperature-dependent hydration and hydrogen-bond formation of the ionic liquid components. The crystal structures of four ionic liquids and five metal complexes have been determined.

引用

页码：9987 / 9999

页数：13

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