# INFRARED DETECTION OF $HCCCNH^{+}$ :OBSERVATION OF THE $\nu_{1}$ (N-H STRETCH) FUNDAMENTAL BAND

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/17182

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 Title: INFRARED DETECTION OF $HCCCNH^{+}$ :OBSERVATION OF THE $\nu_{1}$ (N-H STRETCH) FUNDAMENTAL BAND Creators: Lee, Sang K.; Amano, T. Issue Date: 1987 Abstract: We report the first observation of the $\nu_{1}$ (N-H stretch) band of protonated cyanoacetylene ($HCCCNH^{+}$) which is supposed to play an important role in interstellar chemistry by using a difference frequency laser system at $NRC.HCCCNH^{+}$ was generated in a modulated hollow cathode discharge through a gas mixture of $HCCCN(\sim 20 mTorr)$ and $H_{2}(\sim 400 mTorr)$. It has been found, however, that the observation should be done at high flow rate of gas mixture to prevent the parent molecule from decomposition. The band origin and the rotational constants have been obtained by a least squares analysis. URI: http://hdl.handle.net/1811/17182 Other Identifiers: 1987-ME-1