What polycyclic aromatic molecules are revealed as exothermic pathways products from the reactions of benzonitrile ionic fragments with acetylene?

Label:chem

Topic
A study combines kinetics and infrared action spectroscopy to understand the formation processes.
Answer
Exothermic pathways reveal the formation of various (polycyclic) aromatic molecules, including pentalene and phenylacetylene radical cations. A study also shows the unexpected formation of phenylcyclobutadiene radical cation (C10H8 ⋅ +).
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