G. Crowder
Apr 1, 1983
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0
Influential Citations
2
Citations
Journal
Journal of Molecular Structure
Abstract
Abstract IR spectra for 2,4-dibromopentane and 2,5-dibromohexane in the liquid and solid states, and liquid-state Raman spectra are reported. Conformational studies have been undertaken with the aid of normal coordinate calculations. The pentane exists in approximately equal concentrations of S HH S HH (meso) and S HH S CH ( dl ) conformers, but a small amount of S CH S CH ( meso ) is also present. The hexane exists in the dl form, but the presence or absence of the meso form could not be determined. The S HH S ′ HH and S HH S CH conformers are abundant in the neat liquid, but the sample crystallizes in the S HH S ′ HH conformation (CH 3 and Br on the same end of the molecule directed out of the plane of the carbon chain). The S CH S CH conformer is present in low concentration.