Synthesis and Characterization of Bromoaluminate Ionic Liquids

被引：5

作者：

Hog, Michael ^{[1
,2
]}

Schneider, Marius ^{[1
]}

Krossing, Ingo ^{[1
,2
]}

机构：

[1] Univ Freiburg, Inst Anorgan & Analyt Chem, Albertstr 21, D-79104 Freiburg, Germany

[2] Univ Freiburg, Freiburger Mat Forschungszentrum FMF, Stefan Meier Str 21, D-79104 Freiburg, Germany

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2017年 / 23卷 / 41期

关键词：

bromoaluminates; electrolytes; ionic liquids; physicochemical properties; ALKYL-CHAIN-LENGTH; TEMPERATURE MOLTEN-SALTS; TRIHALIDE-TETRAHYDROFURAN COMPLEXES; QUATERNARY AMMONIUM-SALTS; SOLID-STATE STRUCTURES; IN-SILICO PREDICTION; FUSED ORGANIC SALTS; ALUMINUM-CHLORIDE; MELTING-POINT; PHYSICOCHEMICAL PROPERTIES;

D O I：

10.1002/chem.201700105

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Twelve bromoaluminate based ionic liquids (ILs) were synthesized and characterized by IR, Raman, and NMR spectroscopy, as well as single crystal X-ray diffraction in part. Their principal physicochemical properties including melting points, conductivities, viscosities, and densities were determined and compared with related ILs. The influence of the cation and anion on the physicochemical properties are discussed. The [AlBr4](-) based salts are-with one exception-solid at room temperature, while the compounds based on the anion [Al2Br7](-) are liquid at room temperature. The liquid salts show low viscosities (49-139 mPas), medium to high conductivities (0.76-3.53 mSm(-1)) and high densities (1.82-2.04 gcm(3)) at 28 degrees C. Furthermore, we showed aluminum electrodeposition from Lewis acidic ILs based on AlBr3 and 1-hexyl-3-methylimidazolium bromide and investigated the stability range of various formulations.

引用

页码：9821 / 9830

页数：10

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