High resolution FTIR study of (SO2)-S-34-O-16: Re-analysis of the bands nu(1) + nu(2), nu(2) + nu(3), and first analysis of the hot band 2 nu(2) + nu(3) - nu(2)

摘要

The high resolution infrared spectrum of the (SO2)-S-34-O-16 molecule was re-investigated in the region of 16001900 cm(-1). The earlier studied by Lafferty et al., the nu(2) + nu(3) band was re-analyzed under consideration of transitions with higher values of quantum numbers J and K-a. The weak nu(1) + nu(2) cold band and the 2 nu(2) + nu(3)- nu(2) hot band were analyzed for the first time. The obtained experimental data were used in the weighted fit procedure based on the effective Hamiltonian which takes into account resonance interactions between a variety of vibrational states. The obtained set of spectroscopic parameters reproduces the initial experimental data with accuracies close to experimental uncertainties. (C) 2015 Elsevier Inc. All rights reserved.