Abstract

The chemiluminescent reaction of ozone with furan was studied in the gas phase at low pressure. Fluorescence was observed from the first excited singlet states of cis- and trans-glyoxal in addition to phosphorescence from trans-glyoxal. The internal rotation energy barrier for trans-cis isomerization in the first excited singlet state was estimated to be about 5000 cm −1. The mechanism for the formation of excited species is discussed.

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