VIBRATIONAL-SPECTRA AND NORMAL COORDINATE ANALYSIS FOR CYCLOPENTENE, CYCLOPENTENE-1-D1, CYCLOPENTENE-1,2,3,3-D4 AND CYCLOPENTENE-D8 Academic Article uri icon

abstract

  • The vibrational spectra of cyclopentene, cyclopentene-1-d1, cyclopentene-1,2,3,3-d4 and cyclopentene-d8 have been measured between 4000 and 100 cm-1 in all three physical states. In conjunction with a normal coordinate analysis, vibrational assignments are proposed on the basis of isotopic shift ratios, group frequency considerations, relative band intensities and shapes as well as depolarization ratios. The vibrational assignments and coupling effects are discussed in terms of the calculated potential energy distribution. A total of thirty-seven valence force constants was used to calculate the one hundred and twenty-eight frequencies for the four isotopic derivatives of cyclopentene. The correspondence between the observed and calculated frequencies is reflected by the overall percentage error of about 1%. 1979.

published proceedings

  • SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY

author list (cited authors)

  • VILLARREAL, J. R., LAANE, J., BUSH, S. F., & HARRIS, W. C.

citation count

  • 37

complete list of authors

  • VILLARREAL, JR||LAANE, J||BUSH, SF||HARRIS, WC

publication date

  • January 1979