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Optagalvanic spectrum of the CO L′ 1 Π-B 1Σ+ (v-0) band and electronic structure of the L′ 1Σ state

✍ Scribed by Shigeyuki Sekine; Suehiro Iwata; Chiaki Hirose

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
552 KB
Volume
180
Category
Article
ISSN
0009-2614

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✦ Synopsis

The rotationally resolved absorption band of CO observed by optogalvanic spectroscopy between 16200 and 16300 cm-' was identified as the Q branch of the L'-B 'Z+ (u' unspecified-u" = 0) band. The molecular constants of the L' (v) level were determined as r,= 103211.81 kO.44 cm-', B,= 1.7535f 0.0048 cm-', and D,= (10.0+ 9.5) x IO-" cm-', from which the effective bond length of 0.1184 f 0.0002 nm has been derived. An ab initio SCF CI calculation was carried out to determine the character of the L' state. The observed features of the L'-B 'E+ (~0) and L'-X 'Z+ (~0) bands, as well as the calculation, suggest that the L' state is the mixed state of 'II symmetry consisting of configurations of the valence type (...)40 I 7&or2n and Rydberg typos.

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