On the nature of first positive band of molecular nitrogen in LIF of polymer and comparison with Emission spectra in Discharge

Ranjan Changmai and G. D. Baru

Abstract

The present work reports the first positive band system due to molecular nitrogen in the region 5692.9Š-6545.0 Šwhich is severely quenched where polymer of poly (p-phenylvinylene) is excited with the help of Argon ion laser (5145 Ǻ). We report here similar band system in the region of 5692.9Š-6545.0 Šwhere a sample of m-nitrobenzaldehyde is excited is uncondensed transformer discharge. A comparison with the spectra is expected to throw sufficient light on the phenomenon of quenching.