Title
IR spectroscopic study of the <tex>$HCl\cdots O_{3}$</tex> molecular complex in liquid argon
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Oxford ,
Subject
Chemistry
Source (journal)
Spectrochimica acta: part A: molecular and biomolecular spectroscopy. - Oxford
Volume/pages
117(2014) , p. 713-717
ISSN
1386-1425
ISI
000328179900094
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Infrared spectra are reported of ozone and HCl dissolved in liquid argon (86-134 K) at concentrations varying from 5 x 10(-5) to 9 x 10(-6) M for HCl, and from 1 x 10(-3) to 5 x 10(-5) M for ozone. At low concentrations of O-3 and of HCl, no spectral features due to O-3-HCl complex were found. At higher concentrations (1 x 10(-3) of ozone vs 5 x 10(-5)-9 x 10(-6) of HCl), a new band near 2840 cm(-1) due to the HCl center dot center dot center dot O-3 complex was observed. FWHM of nu(HCl) of the complex is 8 cm(-1). From the temperature dependence of the absorption band intensity, the enthalpy of the complex formation was estimated, Delta H degrees = 4.7 +/- 0.4 kJ mole(-1). The optimized geometry of the cis-HCl center dot center dot center dot O-3 complex and a value of 6.3 kJ mole(-1) for its binding energy were determined by ab initio calculations. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
E-info
https://repository.uantwerpen.be/docman/iruaauth/70abc5/c0a6424.pdf
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