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

被引：61

作者：

Krueger, Matthias ^{[1
]}

Bruendermann, Erik ^{[1
]}

Funkner, Stefan ^{[1
]}

Weingaertner, Hermann ^{[1
]}

Havenith, Martina ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Fac Chem & Biochem, Dept Phys Chem 2, D-44780 Bochum, Germany

来源：

JOURNAL OF CHEMICAL PHYSICS | 2010年 / 132卷 / 10期

关键词：

dielectric function; dielectric liquids; harmonic oscillators; hydrogen bonds; organic compounds; rotational-vibrational energy transfer; vibrational modes; TIME-DOMAIN SPECTROSCOPY; SOLVATION DYNAMICS; SALT; ABSORPTION; WATER;

D O I：

10.1063/1.3352585

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页数：4

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