Abstract The absorption spectrum of BO 2 in the ground state, X 2 Π g, has been measured in the infrared with a high-resolution Fourier transform spectrometer. The 00 0 1-00 0 0 and 10 0 1-00 0 0 vibrational transitions have been measured for both the 2Π12 and the 2Π32 states. Because of the large number of vibronic levels arising from the Renner-Teller effect, there is a high likelihood of observing level crossings in this molecule and three examples ...
