Strong, Localized, and Directional Hydrogen Bonds Fluidize Ionic Liquids

被引：375

作者：

Fumino, Koichi ^{[1
]}

Wulf, Alexander ^{[1
]}

Ludwig, Ralf ^{[1
,2
]}

机构：

[1] Univ Rostock, Abt Physikal Chem, Inst Chem, D-18059 Rostock, Germany

[2] Univ Rostock, Leibniz Inst Katalyse, D-2500 Rostock 1, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2008年 / 47卷 / 45期

关键词：

Coulomb networks; density functional calculations; hydrogen bonds; ionic liquids; IR spectroscopy;

D O I：

10.1002/anie.200803446

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented) Opposite effect of hydrogen bonding: Whereas molecular liquids are stabilized, ionic liquids can be fluidized by hydrogen bonds. Highly directional H bonds introduce "defects" into the Coulomb network resulting in reduced melting points and decreased viscosities. This is shown by the mid- and far-FTIR spectra of two ionic liquids. (Structure in black: all H bonds are possible, structure in white: methyl group prevents one H bond.) © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：8731 / 8734

页数：4

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