Original scientific paper

Infrared Jntensities of Liquids IV: Recent Measurements of Infrared Optical Constants and Absolute Infrared Absorption Intensities of Liquids by Multiple Attenuated Total Reflectance

John E. Bertie ; Department of Chemistry University of Alberta, Edmonton, Canada T6G262
Heather Harke ; Department of Chemistry University of Alberta, Edmonton, Canada T6G262
M. Khalique Ahmed ; Department of Chemistry University of Alberta, Edmonton, Canada T6G262
Hans H. Eysel ; Anorganisch-Chemisches Institut der Universitat, D-6900 Heidelberg, Federal Republic of Germany

Abstract

Recent refinements are described to the CIRCLE, multiple
attenuated total reflection method for measuring infrared optical
and dielectric constants, absolute integrated intensities and, hence,
molecular dipole derivatives. Attention is focussed on the accuracy
of the method, which is estimated from measurements on H20 (1)
and D20 (1).The real and imaginary optical constants agree with
literature values to < 1.5% and about 6%, respectively, which is
about the agreement of the literature values. The integrated areas
agree with literature values to < 2%, and OH and OD bond dipole
derivatives for H20 and D20 agree to < 10f0. pATR, refractive index, dielectric constant, and absorption cross section spectra are reported from 8000to 350 cm? for 2-butanol, and integrated absolute absorption intensities and bond dipole derivatives are presented for 2-butanol, 2-hexanol, and 2-octanol and compared with those for primary alcohols and water.

Keywords

Hrčak ID:

175918

URI

https://hrcak.srce.hr/175918

Publication date:

30.9.1988.

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