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Title
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IR spectroscopic study of the molecular complex in liquid argon
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Author
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Abstract
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| 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. |
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Language
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English
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Source (journal)
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Spectrochimica acta: part A: molecular and biomolecular spectroscopy. - Oxford
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Publication
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Oxford
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2014
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ISSN
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1386-1425
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DOI
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10.1016/J.SAA.2013.08.119
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Volume/pages
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117
(2014)
, p. 713-717
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ISI
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000328179900094
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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