A theoretical evaluation of normal frequencies of vibration of the isomeric pentanes
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The purpose of this paper is to evaluate to a first approximation and from theoretical considerations only, the normal frequencies of vibration for the infra-red and Raman spectra of three isomers of pentane (C5H12). The isomers are n-pentane, 2-methylbutane, and 2,2-dimethylpropane. Theoretical data come from the geometrical symmetry of the molecule, force constants due to C-C stretching and C-C-C- bending, angles between carbon bonds, masses of carbon and hydrogen atoms. The work of this paper is confined to the skeletal frequencies due to vibrations of the carbon atoms, considering the hydrogen atoms frozen to the carbon atoms. Work in the field of molecular vibration spectra has been done by several investigators such as D. M. Dennison at the University of Michigan, E. Bright Wilson, Jr. at Harvard University, G. B. B. M. Sutherland at both Cambridge, England and the University of Michigan ... [TRUNCATED]
Thesis (Ph.D.)--Boston University
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