Abstract
A high resolution (0.0015cm−1) IR spectrum of propane, C3H8, has been recorded with synchrotron radiation at the French light source facility at SOLEIL coupled to a Bruker IFS-125 Fourier transform spectrometer. A preliminary analysis of the ν21 fundamental band (B1, CH3 rock) at 921.382cm−1 reveals that the rotational energy levels of 211 are split by interactions with the internal rotations of the methyl groups. The AA, EE and AE+EA components of this A-type band have their band centers at 921.3724(38), 921.3821(33) and 921.3913(44)cm−1, respectively. These torsional splittings most probably are due to anharmonic and/or Coriolis resonance couplings with nearby highly excited states of both internal rotations of the methyl groups. In addition, several vibrational–rotational resonances were observed that affect the torsional components in different ways.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
