Abstract:

The infrared absorption spectrum of the CCO radical has been studied in an extension of the original observation of the C-O stretching vibration by Yamada et al. [J. Chem. Phys. 84 (1985) 2573]. The CCO radical was generated using a flowing mixture of carbon suboxide and helium subjected to a hollow-cathode discharge. The spectral region between 1930-1990 cm(-1) was probed using a tunable diode laser spectrometer. Transitions with N-values up to 40 were measured for the nu(1) fundamental and nu(1) + nu(2) - nu(2) sequence bands. Their analysis yielded band origins, rotational, centrifugal distortion, spin-spin interaction, and spin-orbit interaction parameters for the lower and upper vibrational states, and l-doubling parameters for the degenerate bending states upsilon(2) = 1 and (upsilon(1) = 1, upsilon(2) = 1). In particular, the band origins for nu(1) and nu(1) + nu(2) - nu(2) were determined to be 1970.86332(41) cm(-1) and 1960.13093(37) cm(-1), respectively. (C) 1997 Published by Elsevier Science B.V.

Notes:

Times Cited: 10MoazzenAhmadi, N Sandilands, DWD Boere, RT

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