3 research outputs found
ANALYSIS OF THE HIGH-RESOLUTION INFRARED SPECTRUM OF METHYL ISOCYANIDE
A. Bauer, M. Bogey, and M. A. Kastler, C. R. Acad. Sci. Ser. B 271. 892 (1970). A. Bauer, M. Bogey, and S. Maes, J. Phys. (Paris) 32, 763(1971). J. Pliva, personal communication.Author Institution: Department of Chemistry 152 Davey Laboratory, The Pennsylvania State UniversityThe infrared spectrum of methyl isocyanide, CH3NC, has been measured in the region at a resolution of using a Bomem Fourier-transform spectrometer. The fundamental band and two combination band. and , have been assigned. Molecular constants for the upper states of the three bands have been derived using the ground state constants determined by microwave and fitting procedures and programs developed by
ISOTOPE EFFECTS IN THE BAND SYSTEM OF
Author Institution: Department of Chemistry, The Pennsylvania State UniversityThe absorption spectrum of the A-X band system of has been examined using a Bomem DA3.002 Fourier Transform Interferometer in the frequency range of . A high resolution ) spectrum was measured at two different temperatures (600 and ) in a heat pipe overn containing helium as a buffer gas. The spectrum was analyzed to yield Dunham coefficients and Franck-Condon factors. The molecular constants calculated for are compared with those for
ROVIBRATIONAL ANALYSIS OF THE CH STRETCHING OF METHYL ISOCYANIDE
Author Institution: Department of Chemistry, Penn State University; Department of Physics, Penn state UniversityThe symmetric stretching of the methyl group () of has been recorded using a Fourier Transform Spectrometer with an unapodized resolution of . The rotational structure has been revealed for the first time, and the molecular constants have been obtained. Over 400 spectral lines have been assigned to the P- and R-transitions of this parallel band with to and . The rotational structure of the is quite different from a typical parallel band (e.g., of because of the small (B) and large (A-B) values, giving rise to an intermingling of spectral lines belonging to different J-multiplets. In addition, all of the K-subbands have been observed to he strongly perturbed. The structure analysis, spectral assignment, and perturbation origin will be discussed in this presentation."