A molecular beam and computational study on the barrierless gas phase formation of (iso)quinoline in low temperature extraterrestrial environments. Issue 34 (23rd August 2021)

• Record Type: Journal Article
• Authors: Zhao, Long; Prendergast, Matthew; Kaiser, Ralf I.; Xu, Bo; Lu, Wenchao; Ahmed, Musahid; Hasan Howlader, A.; Wnuk, Stanislaw F.; Korotchenko, Alexander S.; Evseev, Mikhail M.; Bashkirov, Eugene K.; Azyazov, Valeriy N.; Mebel, Alexander M.
• Is Part Of: Physical chemistry chemical physics. Volume 23:Issue 34(2021)
• Page Start: 18495
• Page End: 18505
• Publication Date: 2021-08-23
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/d1cp02169a
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : Quinoline and isoquinoline can be formed through molecular mass growth processes in low-temperature environments. Abstract : Despite remarkable progress toward the understanding of the formation pathways leading to polycyclic aromatic hydrocarbons (PAHs) in combustion systems and in deep space, the complex reaction pathways leading to nitrogen-substituted PAHs (NPAHs) at low temperatures of molecular clouds and hydrocarbon-rich, nitrogen-containing atmospheres of planets and their moons like Titan have remained largely obscure. Here, we demonstrate through laboratory experiments and computations that the simplest prototype of NPAHs – quinoline and isoquinoline (C9 H7 N) – can be synthesized via rapid and de-facto barrier-less reactions involving o -, m - and p -pyridinyl radicals (C5 H4 N˙) with vinylacetylene (C4 H4 ) under low-temperature conditions.