TITLE

Infrared emission spectra of C3: the Renner effect in the a3Πu and b3Πg electronic states

AUTHOR(S)
Tokaryk, D. W.; Civisˇ, Svatopluk
PUB. DATE
September 1995
SOURCE
Journal of Chemical Physics;9/8/1995, Vol. 103 Issue 10, p3928
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Five new triplet bands of 12C3, and three corresponding bands of 13C3, have been observed in emission between 6000 and 6600 cm-1 with a Fourier transform spectrometer. Rotational analysis shows that these bands arise from excited bending vibrations of the b3Πg→a3Πu electronic transition, and that all components of the (010) vibrational level of the b3Πg state exhibit unusual perturbations. Renner parameters for both electronic states have been extracted from an analysis of the spin-orbit parameters of the (000) 3Π, (010) 3Δ, (020) 3[uppercase_phi_synonym], and (030) 3Γ levels. The Renner effect is shown to be large in both electronic states (ε′ = +0.447, ε″ = +0.566). Approximate bending vibrational frequencies are also obtained (ω2′∼345 cm-1, ω2″∼505 cm-1). © 1995 American Institute of Physics.
ACCESSION #
7625245

 

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