Electronic absorption spectra of linear and cyclic Cn+n=7–9 in a neon matrix

The Cn+n=7–9 cations were produced by electron-impact ionization of perchloronaphthalene, mass selected, and their electronic absorption spectra in 6K neon matrices recorded. The linear and cyclic isomers of C7+ and C8+ are detected. Three systems of linear C7+ are observed with origin bands near 77...

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Bibliographic Details
Published in:The Journal of chemical physics 2005-07, Vol.123 (4)
Main Authors: Fulara, Jan, Shnitko, Ivan, Batalov, Anton, Maier, John P.
Format: Article
Language:eng ; jpn
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Summary:The Cn+n=7–9 cations were produced by electron-impact ionization of perchloronaphthalene, mass selected, and their electronic absorption spectra in 6K neon matrices recorded. The linear and cyclic isomers of C7+ and C8+ are detected. Three systems of linear C7+ are observed with origin bands near 770, 332, and 309nm. The cyclic C7+ shows two transitions near 676 and 448nm. One system of linear C9+ is observed commencing at 371nm. Linear C8+ shows five dipole-allowed electronic transitions from the X̃Πg2 ground state, and the strongest ones have the origin bands at 890.8 and 308.1nm. Five electronic transitions of cyclic C8+ are also discernible.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.1942493