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Overtone bands in aniline and its chloro-derivatives—a low concentration study

Authors
Journal
Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy
1386-1425
Publisher
Elsevier
Publication Date
Volume
59
Issue
6
Identifiers
DOI: 10.1016/s1386-1425(02)00312-8
Keywords
  • Overtone Spectroscopy
  • Inter And Intramolecular Hydrogen Bonding
  • Thermal Lensing
  • Symmetric And Asymmetric Stretching
  • Anharmonicity

Abstract

Abstract Overtone spectra of aniline and its o-and m- chloro-derivatives mixed with carbon tetrachloride have been studied at different dilutions. Vibrational frequency and anharmonicity constants for the CH stretch vibration and for the symmetric and asymmetric NH stretch vibrations have been determined. The presence of intermolecular hydrogen bonding has been noted in all the three molecules. Intramolecular hydrogen bonding involving NH⋯Cl has also been detected in o-chloroaniline.

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