S. R. González, R. Villamañán, J. Alonso
Nov 1, 1988
Citations
0
Influential Citations
4
Citations
Journal
Journal of Molecular Structure
Abstract
Abstract The rotational spectrum of 4-fluorobenzaldehyde has been investigated in the 26.5–40.0 GHz frequency region. R -branch and Q -branch transitions allowed by μ a and μ b dipole moment components are assigned. Rotational parameters for the ground and several excited torsional states are derived which prove the molecule to be planar. Relative intensity measurements show that the first torsional state is about 107 ± 20 cm −1 above the ground state. This value is in good agreement with the far-IR data. Other vibrational satellites are also identified and a tentative assignemnt is proposed on the basis of the variation of the inertia defect.