# ABSORPTION SPECTRUM OF THE CCN RADICAL.

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/14781

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 Title: ABSORPTION SPECTRUM OF THE CCN RADICAL. Creators: Merer, A. J.; Travis, D. N. Issue Date: 1965 Publisher: Ohio State University Abstract: A new absorption spectrum, attributed to the CCN radical, has been discovered in the flash photolysis of diazoacetonitrile $HC(CN)N_{2}$; three electronic transitions between 3500 {\AA} and 4700 {\AA} have been observed. Rotational analyses of bands of these transitions have shown that the ground state of the radical is a $^{2}H_{2}$ electronic state, and that the three observed excited states are $A^{2}\Delta, B^{2}\Sigma^{-}$ and $C^{2}\Sigma^{+}$. Analysis of sequence bands of the bending vibration indicates that the Renner-Teller interaction between the vibrational and electronic and electronic angular momenta in both the $^{2}H$ and $^{2}\Delta$ electronic states is considerable; this interaction has not previously been observed for $^{2}\Delta$ states. Description: Author Institution: Division of Pure Physics, National Research Council URI: http://hdl.handle.net/1811/14781 Other Identifiers: 1965-D-7