FM LASER ABSORPTION OF THE $\tilde{A}(000) \leftarrow \tilde{X} (010)$ AND $\tilde{A}(000) \leftarrow \tilde{X}(011)$ BANDS OF HCCl

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Title: FM LASER ABSORPTION OF THE $\tilde{A}(000) \leftarrow \tilde{X} (010)$ AND $\tilde{A}(000) \leftarrow \tilde{X}(011)$ BANDS OF HCCl
Creators: Bird, Ryan G.; Hall, Gregory E.; Sears, Trevor J.
Issue Date: 2004
Publisher: Ohio State University
Abstract: The $000 \leftarrow 010$ and $000 \leftarrow 011$ bands of the $\tilde{A} \leftarrow \tilde{X}$ system of HCCl lying at approximately $11 100 cm^{-1}$ and $10 300 cm^{-1}$, respectively, were recorded and analyzed. HCCl was formed by the photolysis of a continuous flow of a 1% mixture of $HCCIBr_{2}$ in nitrogen buffer gas at a total pressure of 1 Torr using an ArF excimer laser at 193nm. The spectrum was recorded in absorption using a continuous wave, frequency-modulated, Ti:Sapphire laser and a Herriot-type absorption cell. In the, stronger, $000 \leftarrow 010$ transition, three subbands, $K=0 \leftarrow 1, 1 \leftarrow 0, 1\leftarrow 2$, of $HC^{35}Cl$ and one subband, $K=0\leftarrow 1$, of $HC^{37}Cl$ were identified. Since the upper state in the transition is known from previous work, the analysis determines the the rotational and vibrational energies of these ground electronic state levels of HCCl for the first time.
Description: Author Institution: Department of Chemistry, Brookhaven National Laboratory
Other Identifiers: 2004-MJ-05
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