A SEARCH FOR THE C-H (BRIDGE) STRETCH VIBRATION-ROTATION BAND OF $C_{2}H_{3}$
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Date
1988
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Ohio State University
Abstract
Oka and coworkers1 have detected $C_{2}H_{3}{^{+}}$ by high-resolution infrared spectroscopy around 3 umm; their preliminary analysis suggested that the species detected is the non-classical(bridged) form. We are endeavouring to observe the perpendicular C-H (bridge) stretch band $(\nu_{2})$ of nonclassical $C_{2}H_{3}^{+}$ around $5 \mu n$. An initial search was made in $2020-2080 cm^{-1}$ region with diode lasers and a cooled hollow cathode discharge in a mixture of $C_{2}H_{2}$ and $H_{2}$. Several series of lines were detected. Although the assignment is not definitive, the species detected in this search is tentatively identified as $C_{2}H_{3}$ on the basis of the observed chemistry and the line spacings. Oka, Phil. Trans. Roy. Soc. London, to be published.
Description
Author Institution: Herzberg Institute of Astrophysics, National Research Council