THE SPECTRUM OF NITRIC-OXIDE BETWEEN 1700 AND 2100 CM(-1)

Using Fourier-transform spectra, absolute line position measurements w ere performed in the 1 <-- 0 allowed subbands of N-14 O-16 for transit ions characterized by high J values (J less than or equal to 41.5). A global analysis of these new data along with previously published infr ared, far-infrared, and microwave data involving the v = 0, 1, and 2 v ibrational states was carried out and yielded improved rovibrational, h-doubling, and hyperfine coupling spectroscopic constants. Absolute i ntensities have also been obtained and the vibrational dipole moment o f the 1 <-- O subbands, as well as the Herman-Waliis coefficients, wer e determined through an analysis of these new intensities and of those reported by M. N. Spencer, C. Chakerian, Jr., L. P. Giver, and L. R. Brown (J, Mol. Spectrosc. 165, 506-524, 1994). These constants and the ones reported for the 2 <-- 1 allowed subbands and the 1 <-- 0 forbid den subbands were used to compute a complete synthetic spectrum in whi ch line positions were calculated, using the spectroscopic constants o btained in this work and accounting for the hyperfine structure. (C) 1 995 Academic Press, Inc.