Orange chemiluminescence from NO2

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Abstract
A spectroscopic and kinetic investigation of the visible and near infrared luminescnece produced in a system containing nitric oxide, oxygen atoms, and nickel is presented. The emission spectrum is shown to be a continuum extending from 500 nm to beyond 900 nm with a maximum near 800 nm. The rate law governing this emission is shown to be I=k[O2(A, A′)][NO][O2]/[M], where k=7×10−14 cm3 molecule s−1, and [O2(A, A′] represents the combined concentrations of the 3Σ u + and 3Δ u states of oxygen.