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Formation of CN(B2Σ) by the electron impact dissociation of cyanides. Rotational energy distribution of CN(B2Σ) from HCN

✍ Scribed by Ikuo Tokue; Kozo Kuchitsu

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
414 KB
Volume
34
Category
Article
ISSN
0009-2614

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✦ Synopsis

The rotational structures of the (0,O) sequence of the violet (B "_-X'.Z) band system of CN produced by the electronimpact dissociative excitation of HCN were measured under such conditions that secondary reactions czn be disregrded. The distribution of the spectral intensity was essentially independent of the electron ener_w (80-300 ev). The rotational energy distributions of the Y' = 0,11, I2 and 13 levels of the I3 ' C state can be approximated by two Boltzmann functions; the intensities for higher K fit the distribution for effective temperatures of 1080-1500 K, uld those for lower K for 300-350 K. The formation mechanisms of the CN(B * Z) are discussed.

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