SINGLET AND TRIPLET STATES OF NCN IN THE FLASH PHOTOLYSIS OF CYANOGEN AZIDE
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Date
1966
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Ohio State University
Abstract
A new absorption spectrum, at $3327 {\AA}$, has been discovered in the flash photolysis of cyanogen azide, $NCN_{3}$. Rotational analysis of the bands identified them as belonging to a $^{1}\Pi_{u}\leftarrow^{1}\Delta_{g}$ transition of NCN. The known $^{3}\Pi_{u}\leftarrow^{3}\Sigma_{g}^{-}$ transition is also observed and its proximity, at $3290{\AA}$, facilitates the study of the relative rates of production and disappearance of the $^{1}\Delta_{g}^{-}$ states. This comparison offers good evidence that the $^{3}\Sigma_{g}^{-}$ state is the ground state of NCN and that the main primary process under the conditions used in this study is: $NCN_{3} \stackrel{h\nu}{\rightarrow} NCN (^{1}\Delta)+N_{2}$
Description
Author Institution: Division of Pure Physics, National Research Council