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DIODE AND DIFFERENCE-FREQUENCY LASER SPECTRA OF CUBANE

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/12023

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Title: DIODE AND DIFFERENCE-FREQUENCY LASER SPECTRA OF CUBANE
Creators: Pine, A. S.; Maki, A. G.; Robiette, A. G.
Issue Date: 1983
Abstract: Two of the three infrared-active fundamentals of cubane $(C_{8}H_{8})$ have been studied at near- Doppler-limited resolution using tunable laser instruments. The complete spectrum of the C-H stretching band, $\nu_{10}$, near $2990 cm^{-1}$ was recorded with a difference-frequency system. The rotational structure of this band is extremely complex, indicating a strong second-order Coriolis resonance with a close-lying $A_{2u}$ vibration. Portions of the C-C stretching band, $\nu_{12}$, near $852 cm^{-1}$ were recorded with a diode laser. The structure in this band is much simpler, allowing for its analysis as a relatively unperturbed spherical top fundamental. The diagonal F4 approximation fits the R(45) to P(16) region to within the Doppler width, but off-diagonal corrections are indicated for higher J P-branch lines.
URI: http://hdl.handle.net/1811/12023
Other Identifiers: 1983-WE-08
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