R. Hakalla, M.L. Niu, R.W. Field, A.N. Heays, E.J. Salumbides, G. Stark, J.R. Lyons, M. Eidelsberg, J.L. Lemaire, S.R. Federman, N. de Oliveira, W. Ubachs
The high-resolution B1Σ+→A1Π (0, 0) and (0, 3) emission bands of the less-abundant 13C17O isotopologue have been investigated by Fourier-transform spectroscopy in the visible region using a Bruker IFS 125HR spectrometer at an accuracy 0.003 cm-1. These spectra are combined with high-resolution photoabsorption measurements of the 13C17O B1Σ+←X1Σ+ (0, 0), B1Σ+←X1Σ+ (1, 0) and C1Σ+←X1Σ+ (0, 0) bands recorded with an accuracy of 0.01 cm-1 using the vacuum ultraviolet Fourier-transform spectrometer, installed on the DESIRS beamline at the SOLEIL synchrotron. In the studied 17,950–22,500 cm-1 and 86,800–92,100 cm-1 regions, 480 transitions have been measured. These new experimental data were combined with data from the C→A and B→A systems, previously analyzed in 13C17O. The frequencies of 1003 transitions derived from 12 bands were used to analyze the perturbations between the A1Π (υ=0–3) levels and rovibrational levels of the d3Δi, e3Σ-, a'3Σ+, I1Σ- and D1Δ states as well as to a preliminary investigation of weak irregularities that appear in the B1Σ+ (υ=0) level. Deperturbed molecular constants and term values of the A1Π state were obtained. The spin-orbit and L-uncoupling interaction parameters as well as isotopologue-independent spin-orbit and rotation-electronic perturbation parameters were derived. © 2016 Elsevier Ltd
Materials Spectroscopy Laboratory, Department of Experimental Physics, Faculty of Mathematics and Natural Science, University of Rzeszów, ul. Prof. S. Pigonia 1, Rzeszów, 35-959, Poland; Department of Physics and Astronomy and LaserLaB, Vrije Universiteit, De Boelelaan 1081, Amsterdam, 1081 HV, Netherlands; Department of Chemistry, Massachusetts Institute of Technology, Cambridge, 02139, MA, United States; Department of Physics, University of San Carlos, Cebu City, 6000, Philippines; Department of Physics, Wellesley College, Wellesley, 02481, MA, United States; School of Earth and Space Exploration, Arizona State University, PO Box 871404, Tempe, 85287, AZ, United States; Observatoire de Paris, LERMA, UMR 8112 du CNRS, Meudon, 92195, France; Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS - Université Paris-Sud, UMR 8214 (previously at Paris Observatory, LERMA), Orsay, 1405, France; Department of Physics and Astronomy, University of Toledo, Toledo, 43606, OH, United States; Synchrotron SOLEIL, Orme de Merisiers, St. Aubin, BP 48, Gif sur Yvette Cedex, F-91192, France
