Bulletin of the Chemical Society of Japan · 1978 · 76 citations · 28 references
Natural SciencesChemistryPhysical ChemistrySpectroscopyVibrationInfrared SpectroscopyMolecular RotationMolecular VibrationRaman SpectroscopyVibrational SpectroscopyVibrational StructureEnthalpyMolecular Force ConstantsMolecular Rotational ConstantsMolecular Vibrational ModesNormal Coordinate AnalysisRaman SpectraRotation-vibration SpectraRotational-vibrational Spectroscopy
Abstract The Raman and infrared spectra of 1-chloro-, 1-bromo-, and 1-iodopropanes, CH3CH2CH2X (X=Cl, Br, and I), and 1-chloro-, 1-bromo-, and 1-iodobutanes, CH3CH2CH2CH2X (X=Cl, Br, and I), were measured for the gaseous, liquid, glassy, and crystalline states. The normal vibration frequencies were calculated, a consistent set of force constants explaining the frequencies of basic halogenoalkanes being assumed. The rotational isomerism was studied on the basis of the spectral observations and the normal coordinate calculations. The enthalpy differences among the rotational isomers were examined.
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