Abstract
Spectra of CH4+ O2low-pressure flames have been recorded at a resolution of 0.020 cm−1with an infrared Fourier transform spectrometer in the spectral range 1790 to 5029 cm−1. Through the use of CO2and CO emission lines, the flame temperature has been determined with a precision of the order of 1%. Results (wavenumbers, band centers, and spectroscopic constants) concerning six new vibrational transitions Δv3= 1 with (2v1+v2) = 5 which have not been observed earlier and which occur between highly excited vibrational states are reported.
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