Equilibrium structure of CO+ from its millimeter wave spectrum. Breakdown of the Born–Oppenheimer approximation
- 15 November 1983
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 79 (10), 4704-4707
- https://doi.org/10.1063/1.445611
Abstract
Microwave transitions of CO+ have been observed for several isotopic substitutions, in different vibrational states: 12C 16O+(v=0,1,2,3,4), 12C 18O+(v=0,1), 13C 16O+(v=0,1), and 13C 18O+(v=0). All measured frequencies are fitted together in a one step procedure, leading to a precise determination of molecular constants and equilibrium structure. The vibrational dependence of the 13C hyperfine structure is pointed out, and the ΔC01 and ΔO01 mass scaling coefficients are determined.Keywords
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