Low-Frequency Vibrational Modes of Protic Molten Salts and Ionic Liquids: Detecting and Quantifying Hydrogen Bonds
作者:Koichi Fumino、Elena Reichert、Kai Wittler、Rolf Hempelmann、Ralf Ludwig
DOI:10.1002/anie.201200508
日期:2012.6.18
The subtle balance between Coulomb forces, hydrogen bonds, and dispersion forces is important for the understanding of the unique properties of molten salts and ionic liquids. Vibrational modes with peak frequencies falling in the 140–180 cm−1 range of far‐infrared spectra were assigned unequivocally to hydrogen bonds, which are local and directional in nature, but almost insensitive to the molecular
库仑力,氢键和分散力之间的微妙平衡对于理解熔融盐和离子液体的独特性质很重要。峰值频率在140-180 cm -1的远红外光谱范围内的振动模式被明确分配给氢键,氢键本质上是局部的和定向的,但对离子的分子量几乎不敏感。