The Constant Frequency Raman Lines of N-Paraffins

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Abstract
Assuming the Urey-Bradley field for the intramolecular potential, we have calculated the normal frequencies of long chain molecules in the extended form. Especially the vibration type of the frequencies remaining almost constant throughout the homologous series has been discussed. The result has been applied to the assignment of Raman lines of N-paraffins and of the infra-red absorption lines of polyethylene.