THE NU(1)-NU(3) AND NU(2)+3-NU(3) BANDS OF O-16(3)(NU(2)+2)

The infrared spectra of O-16(3) have been recorded in the 3700 cm(-1) region, with a Fourier transform spectrometer at 0.008 cm(-1) resoluti on. A White-type cell, e = 32.16 m, filled with 42.8 Torr O-3 was used . This spectral region corresponds to the upsilon(2) + 3 upsilon(3) an d upsilon(1) + upsilon(2) + 2 upsilon(3) bands. The upsilon(2) + 3 ups ilon(3) band was observed and analyzed previously, but the interacting band upsilon(1) + upsilon(2) + 2 upsilon(3) is observed for the first time. The assignments of this band cover the range J = 58, K-a = 12; observations up to K-a = = 17 are available for upsilon(2) + 3 upsilon (3). The two states (013) and (112) are satisfactorily treated as a dy ed, with a standard deviation of 1.5 x 10(-3) cm(-1) for the 861 obser ved energy levels. (C) 1995 Academic Press, Inc.