THE FUNDAMENTAL AND OVERTONE SPECTROSCOPY OF PYRROLE IN THE BULK GAS AND IN A MOLECULAR BEAM
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Date
1988
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Ohio State University
Abstract
The N-H stretching fundamental in the heterocyclic molecule pyrrole $(C_{4}H_{4}NH)$ is examined at high resolution (1 Mhz) on a molecular beam. The molecular beam passes across a laser beam from a single frequency color center laser and the vibrational energy that is imparted is detected with a low temperature bolometer. Fully resolved molecular beam spectra are compared with Doppler limited room temperature results and with theoretical simulations. Applications of this method to large molecule infrared spectroscopy are discussed. In the bulk gas the 4 - 0 overtone is observed but it has not been detected on the molecular beam. Some reasons for this surprising result are proposed.
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