Far-infrared dielectric properties of polar liquids probed by femtosecond terahertz pulse spectroscopy

被引:602
作者
Kindt, JT [1 ]
Schmuttenmaer, CA [1 ]
机构
[1] YALE UNIV,DEPT CHEM,NEW HAVEN,CT 06520
关键词
D O I
10.1021/jp960141g
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 report the frequency-dependent optical constants, n(nu) and alpha(nu), or, equivalently, the complex permittivity <(epsilon)over cap>(omega) = epsilon'(omega) - i epsilon ''(omega), over the frequency range from 2 to 50 cm(-1) for water, methanol ethanol, 1-propanol, and liquid ammonia. These spectra have been measured with femtosecond terahertz pulse transmission spectroscopy. These liquids exhibit multiple-Debye behavior, making their frequency-dependent dielectric constants valuable benchmarks for molecular dynamics simulations and other theoretical treatments of liquids.
引用
收藏
页码:10373 / 10379
页数:7
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