Abstract
The investigation of the microwave spectrum of isoxazole ( ONCHCHC H) has been continued. The assignment of transitions up to J = 42 gave accurate rotational and distortion constants. The hyperfine splitting of the J = 0 → 1 transitions could be partially resolved and values for the quadrupole coupling constants were obtained. The use of microwave-microwave double resonance modulation in place of Stark effect modulation allowed the assignment of six vibrationally excited states and of the monosubstituted isotopic species containing 13C, 15N and 18O in their natural abundances. Kraitchman's equations for planar molecules were used to derive the r s-structure of the isoxazole ring. Application of a least squares technique for singular systems of normal equations gave structure parameters which optimally reproduce the observed changes of all three moments of inertia under isotopic substitution.
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.
