The Absorption Spectrum of Cyanogen Gas in the Ultraviolet

Abstract

The absorption spectrum of cyanogen gas has been investigated in the ultraviolet down to λ1800. In the region λλ2300-1820 more than one hundred bands were found which apparently belong to one system with origin probably at 44900 cm^-1. The bands have a pronounced tendency to appear as doublets. The more intense ones are usually broad with edges toward the violet, but many line-like structures appear which are probably Q branches. Some regularities in the spectrum are pointed out and the relation of the ultraviolet spectrum to the infrared absorption and Raman spectrum is briefly discussed.

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