title: First spectroscopic studies of the B2Sigma+ --> X2Sigma+ system in the 12C17O+ molecule spectrum.
abstract: The emission spectrum of the B2Sigma+ --> X2Sigma+ system in the 12C17O+ has been recorded at high resolution with conventional spectroscopic techniques. A graphite hollow cathode lamp filled with oxygen, enriched approximately 45% with the 17O2 isotope, has given strong spectra of hitherto unreported bands system of 12C17O+. Four bands, which form the 0-v('') (v('')=1 -4) progression, have been rotationally analysed with effective Hamiltonians of Brown [J. Mol. Spectrosc. 74 (1979) 294]. Next the rovibronic structure parameters, for the B2Sigma+ and X2Sigma+ states, have been determined from merge calculations. Finally, principal equilibrium molecular constants for the ground state: omegae=2186.032(26) cm(-1), omegae xe=14.7848(43) cm(-1), Be=1.927271(73) cm(-1) , alphae=1.8432(24) x 10(-2) cm(-1), De=6.018(26) x 10(-6) cm(-1), betae=1.11(92) x 10(-8) cm(-1) and the sigma(e)(B-->X)=45876.563(34) cm(-1) value of the 12CO17+ molecule have been derived for the first time in this investigation.
authors.affiliation: Atomic and Molecular Physics Laboratory, Institute of Physics, University of Rzeszów, 35-310 Rzeszów, Poland. zajna@univ.rzeszow.pl
authors.forename: W
authors.initials: W
authors.lastname: Szajna
authors.forename: R
authors.initials: R
authors.lastname: Kepa
mesh_terms: D002247:Carbon Isotopes / Q000737:chemistry; D002248:Carbon Monoxide / Q000737:chemistry*; D008872:Microwaves; D010103:Oxygen Isotopes / Q000737:chemistry; D012399:Rotation; D013057:Spectrum Analysis / Q000379:methods*; D014732:Vibration
chemical_list: D002247:Carbon Isotopes; D010103:Oxygen Isotopes; D002248:Carbon Monoxide