title: Electronic and infrared absorption spectra of linear and cyclic C6+ in a neon matrix.
abstract: Electronic and infrared absorption spectra of mass-selected C6+, generated by dissociative electron impact ionization of C6Cl6 and C6Br6, have been recorded in 6 K neon matrices. Linear and cyclic forms of C6+ have been observed. The 2Pig<--Chi2Piu electronic transition of linear C6+ has its origin band at 646 nm whereas for the (2) 2B2<--Chi2A1 system of the cyclic isomer it lies at 570 nm. An infrared active fundamental mode in the ground electronic state of C6+ is observed at 2092 and 1972 cm(-1) for the linear and cyclic isomer, respectively.
authors.affiliation: Department of Chemistry, University of Basel, Klingelbergstrasse 80, CH-4056 Basel, Switzerland.
authors.forename: Jan
authors.initials: J
authors.lastname: Fulara
authors.forename: Evgueni
authors.initials: E
authors.lastname: Riaplov
authors.forename: Anton
authors.initials: A
authors.lastname: Batalov
authors.forename: Ivan
authors.initials: I
authors.lastname: Shnitko
authors.forename: John P
authors.initials: JP
authors.lastname: Maier