High-resolution Fourier-transform study of the ν10 fundamental band and the (ν10 + ν7) − ν7 hot band of trans-glyoxal

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Abstract
The spectrum of trans-glyoxal has been recorded at a resolution of about 0.005 cm−1 in the region from 1650 to 1800 cm−1. More than 1500 lines have been assigned to the bu fundamental ν10 (asymmetric C=O stretching) and about 300 to the (ν10 + ν7) − ν7 "hot" band. Improved ground-state constants have been obtained as well as constants for ν10 and (ν10 + ν7).

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