Electronic Spectra of the Triacetylene Cation (HC6H ) and Protonated Triacetylene (HC6H2 ) Tagged with Ar
Ugo Jacovella, Giel Muller, Katherine J Catani, Nastasia I Bartlett, Evan J Bieske
AUSTRALIAN JOURNAL OF CHEMISTRY | CSIRO PUBLISHING | Published : 2019
Polyacetylene cations (HC 2n H + ) play important roles in combustion processes and in the chemistry of planetary atmospheres and interstellar clouds. Here we report the electronic spectrum for the triacetylene cation (HC 6 H + ) recorded over the 300-610 nm range by photodissociating mass-selected ions tagged with argon atoms in a tandem mass spectrometer. The spectrum shows three band systems that are assigned to CH18508-IE1.gif (origin transition 16 665 cm -1 ), CH18508-IE2.gif (origin transition 23 916 cm -1 ), and CH18508-IE3.gif (origin transition 29 920 cm -1 ). Although the CH18508-IE4.gif band system is well known, the CH18508-IE5.gif and CH18508-IE6.gif band systems are observed fo..View full abstract
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Awarded by Australian Research Council's Discovery Project
Awarded by Swiss National Science Foundation
This research was supported under the Australian Research Council's Discovery Project funding scheme (Project Numbers DP150101427 and DP160100474) as well as by Australian Government Research Training Program Scholarships. U. Jacovella acknowledges support from the Swiss National Science Foundation (P2EZP2_178429).