title: [Study on the comet-tail system of 12C16O+ in the near-infrared region].
abstract: The molecular cation CO+ is a very important transient molecular radical, and the spectra of the ion has been investigated by numerous researchers. Optical-heterodyne-magnetic-rotation-enhanced velocity modulation spectroscopy(OH-MR-VMS) was employed to measure the comet-tail system (A2 pi(i)-X2 sigma+) of 12C16O+ molecular ion. The vibrational rotation absorption spectra wereobserved in the near-infrared region, including three bands of (0, 3), (1, 4) and (3, 6). A set of precise molecular constants for the A2 pi(i) (v' = 0, 1, 3) were determined using the least-squares fit. This experiment has further proved that OH-MR-VMS is very valuable in measuring absorption spectra of molecular ions.
authors.affiliation: Key Laboratory of Optical and Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, China
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Xiao-hua
authors.initials: XH
authors.lastname: Yang
authors.forename: Yu-jie
authors.initials: YJ
authors.lastname: Gan
authors.forename: Ling
authors.initials: L
authors.lastname: Wu
authors.forename: Ying-chun
authors.initials: YC
authors.lastname: Guo
authors.forename: Yu-yan
authors.initials: YY
authors.lastname: Liu
authors.forename: Yang-qin
authors.initials: YQ
authors.lastname: Chen
mesh_terms: D002412:Cations / Q000737:chemistry*; D005609:Free Radicals / Q000737:chemistry*; D016018:Least-Squares Analysis; D019265:Spectroscopy, Near-Infrared; D013816:Thermodynamics
chemical_list: D002412:Cations; D005609:Free Radicals