STUDY OF THE V(3) AND 2V(4) INTERACTING STATES OF (CF4)-C-12

The interacting nu(3) and 2 mu(4) states of (CF4)-C-12 have been analy sed by the tensorial formalism developed by the spectroscopic group at the Universite de Bourgogne. Experimental data included are the nu(3) and 2 nu(4) infrared absorption bands measured by diode lasers, and p ure rotational radiofrequency and microwave transitions in the nu(3) s tate. The nu(4) band spectrum taken by Fourier transform spectrometer is also included to constrain the 2 nu(4) band constants. The observed badly perturbed nu(3) R-branch spectrum and pure rotational transitio ns measured with an accuracy of 100 kHz are reproduced successfully wi th accuracies of 150 kHz and 450 kHz, respectively. Relations with the Hecht (Robiette) notation are discussed.