通讯：质子离子液体硝酸乙基铵在太赫兹频段的极性波动。

Communications: Polarity fluctuations of the protic ionic liquid ethylammonium nitrate in the terahertz regime.

机构信息

Department of Physical Chemistry 2, Faculty of Chemistry and Biochemistry, Ruhr-University of Bochum, D-44780 Bochum, Germany.

出版信息

J Chem Phys. 2010 Mar 14;132(10):101101. doi: 10.1063/1.3352585.

DOI:10.1063/1.3352585

PMID:20232940

Abstract

We have measured the complex dielectric function of the protic ionic liquid ethylammonium nitrate in the frequency range between 0.15 and 1.8 THz with a terahertz time domain spectrometer. The experiments reveal a terahertz mode which can be described as a damped harmonic oscillator with a central frequency of 1.3 THz. The terahertz mode is assigned to an intermolecular vibration, presumably associated with hydrogen-bond dynamics. The data are combined with microwave data to represent the dielectric spectrum from quasistatic conditions up to 1.8 THz.

摘要

我们使用太赫兹时域光谱仪测量了质子离子液体硝酸乙酯在 0.15 到 1.8 太赫兹频率范围内的复介电函数。实验揭示了一个太赫兹模式，可以用一个中心频率为 1.3 太赫兹的阻尼谐振子来描述。这个太赫兹模式被分配到一个分子间振动，可能与氢键动力学有关。这些数据与微波数据相结合，从准静态条件到 1.8 太赫兹来表示介电谱。