Ultraviolet Absorption of Pyrazine Vapor Due to n — π Transition
- 1 June 1957
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 26 (6) , 1508-1515
- https://doi.org/10.1063/1.1743570
Abstract
The near ultraviolet absorption spectrum of pyrazine vapor was photographed and measured. A tentative vibrational analysis was made for some of the bands in the longest wavelength discrete band system (3200 A system), due to the n — π transition. The spectral band feature shows that the 3200 A system is a superposition of two absorption systems which belong to different electronic transitions. It appears that this conclusion is also supported by simple theoretical considerations.Keywords
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