Laser-induced emission from glyoxal

Abstract
Approximately 50 bands have been recorded in emission from glyoxal excited with the 4765, 4880, 4965, 5017, and 5145 Å lines of an argon ion laser. Most of the stronger bands are readily assigned to the 1Au1Ag (π*–n) and 3Au1Ag (π*–n) systems. Seven bands are tentatively assigned to a new band system, probably a second singlet π*–n system. One Raman band has been observed. The new measurements give ν1″ = 2843 cm−1, ν2″ = 1745 cm−1, and ν4″ = 1065 cm−1.

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