Physics
Scientific paper
Jun 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010mss..confefb11v&link_type=abstract
"International Symposium On Molecular Spectroscopy, 65th Meeting, Held 21-25 June, 2010 at Ohio State University. http://molspec
Physics
Matrix/Condensed Phase
Scientific paper
The gas phase absorption spectrum of the ν_6 band (out of plane in phase CH bend) of cyclopropenylidene (c-C_3H_2) has been observed using a high-resolution Fourier transform infrared spectrometer for the first time. The molecule was produced by microwave discharge through a flow of allene (25 mTorr) and Ar (30 mTorr) mixture inside a glass cell. The observed spectrum shows c-type ro-vibrational transitions in which the Q-branch lines (J values up to 34 and K_a values up to 8) are strongly and distinctly stand out in the spectrum. A least squares fitting of a total of 357 transitions (332 ro-vibrational transitions from this work and 25 transitions from the millimeter-wave spectrum with 10^6 times larger statistical weight) results in the determination of the rotational and centrifugal distortion constants in the upper state. The rotational constants agree with those determined by millimeter-wave spectrum and thereby confirming the ν_6 band (ν0 = 776.11729(17) cm-1) of c-C_3H_2.
R. Mollaaghababa, C. Gottlieb, J. M. Vrtilek, and P. E. Thaddeus, J. Chem. Phys. 99, 890 (1993)
Fujimori Ryuji
Kawaguchi Kentarou
Varadwaj Pradeep Risikrishna
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