THE ROVIBRATIONAL SPECTRUM OF THE RING PUCKERING AND NH BENDING MODES OF AZETIDINE
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Date
2008
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Ohio State University
Abstract
High quality infared spectra of the two lowest frequency modes of azetidine (c-C$_3$H$_6$NH) have been recorded between 100 and 700 cm$^{-1}$ using the far infrared beamline at the Candian Light Source in Saskatoon. The far infrared endstation couples highly spatially confined synchrotron light into a Bruker IFS125HR Fourier transform spectrometer and can achieve spectral resolution up to 0.000959 cm$^{-1}$. The observed modes correspond to the ring puckering mode ($\nu_{16}$) at 207.2 cm$^{-1}$ and the N-H bending mode ($\nu_{15}$) at 648.2 cm$^{-1}$. Rotational analysis of the ring puckering mode confirmed our $ab$ $initio$ prediction that the band structure is governed by $a-$type selection rules rather than $c-$type transitions as reported for oxetane.} The results of the rovibrational analysis of both bands will be presented and comparisons will be made between the synchrotron spectra and those collected using a conventional globar source.
Description
M. Winnewisser, M. Kunzmann, M. Lock, and B. P. Winnewisser, J. Mol. Struct. 561, 1 (2001).
Author Institution: Department of Chemistry, University of Manitoba, Winnipeg, MB, Canada R3T 2N2
Author Institution: Department of Chemistry, University of Manitoba, Winnipeg, MB, Canada R3T 2N2