Abstract
THERE is little published information about the spectra of the diatomic carbon halides, and only for CCl has the vibrational analysis of a band-system been completed1,2,6. We have, therefore, recently examined some sources which seemed likely to yield a band-spectrum of CF. The most useful of these has proved to be an electrodeless discharge through a stream of fluorocarbon vapour, using a valve-oscillator dissipating about 300 watts at a wave-length of about 30 metres. At relatively high pressures, excitation of impurities such as CO and SiF does not occur, and an extraordinarily rich banded spectrum is obtained, which so far has been found to extend from about 1970 to 4800 A.
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References
Asundi and Karim, Proc. Ind. Acad. Sci., 6A, 328 (1937).
Horie, Proc. Phys. Math. Soc., Japan, 21, 143 (1939).
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Recent work by Venkateswarlu on CCl, Phys. Rev., 77, 79 (1950), leads to somewhat different values of the constants than those of Horie2 which are used here, but the qualitative arguments are unaffected.
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ANDREWS, E., BARROW, R. Ultra-Violet Band-Systems of CF. Nature 165, 890 (1950). https://doi.org/10.1038/165890a0
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DOI: https://doi.org/10.1038/165890a0
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