C. Cabezas, M. Agúndez, N. Marcelino, B. Tercero, R. Fuentetaja, P. de Vicente, and J. Cernicharo,
reported on the
Discovery of a new molecular ion, HC<sub>7</sub>NH<sup>+</sup>, in TMC-1
Astron Astrophys. 659, Art. No. L8 (2022).
Nine transitions, from J“ = 28 to 36 between about 32.1 and 41.0 GHz, of a new, unknown molecule were detected in the course of a molecular line survey of the prototypical cold dark molecular cloud TMC-1 carried out with the Yebes 40 m radio telescope. Quantum-chemical calculations yielded HC7NH+ as the most likely carrier of these lines. The abundance ratio of HC7N to HC7NH+ is ~350, somewhat higher than those of HC5N to HC5NH+ and HC3N to HC3NH+, of ~240 and ~230, respectively, which can be seen as additional support for the identification.

Contributor(s): H. S. P. Müller 03, 2022

  • molecules/ism/hc7nh-plus.txt
  • Last modified: 2022/03/25 11:15
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