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Unraveling the identity of B11244 (l-C3H+/C3H-): An observational approach

McGuire, Brett A. and Carroll, P. B. and Blake, Geoffrey A. and Remijan, Anthony J. (2014) Unraveling the identity of B11244 (l-C3H+/C3H-): An observational approach. In: 247th ACS National Meeting & Exposition, March 16-20, 2014, Dallas, TX.

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Pety et al. (2012) have reported the detection of eight transitions of a closed-shell, linear mol. (B11244) in observations toward the Horsehead PDR which they attribute to l-C_3H+, a mol. not previously studied in the lab. Such identifications of mols. without lab. spectra are rare. The attribution of these signals to the l-C_3H+ cation has since been disputed by Huang et al. (2013) and Fortenberry et al. (2013), with the latter suggesting the anion, C_3H-, as a more probable carrier based on high-level theor. work. Here, we examine observations of the Horsehead PDR, Sgr B2(N), TMC-1, and IRC+10216 in the context of answering the question: "What if B11244 is actually C_3H-" We present an anal. of the spectroscopy of C_3H-, the probable formation and destruction pathways of the anion in these environments, and the relative abundance of C_3H compared to other known mol. anions.

Item Type:Conference or Workshop Item (Paper)
Related URLs:
URLURL TypeDescription Website
McGuire, Brett A.0000-0003-1254-4817
Carroll, P. B.0000-0002-3191-5401
Blake, Geoffrey A.0000-0003-0787-1610
Remijan, Anthony J.0000-0001-9479-9287
Additional Information:© 2014 American Chemical Society.
Record Number:CaltechAUTHORS:20140423-093959341
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45138
Deposited By: Tony Diaz
Deposited On:23 Apr 2014 19:36
Last Modified:09 Mar 2020 13:19

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