Abstract
IN the course of a study of the high-frequency discharge in benzene vapour, a set of bands in the spectral region 3000–2475 A. is obtained using oscillations in the frequency range 1765–1200 kc./sec. to excite the flowing vapour of benzene (pressure ˜ 0·1 mm. mercury). These oscillations were produced in a modified Hartley circuit using a Mullard PM4DX valve. A Hilger medium quartz spectrograph was used as the resolving instrument to photograph the spectrum. The bands, which are degraded towards longer wave-lengths, occur in several distinct groups, six such being obtained in the present experiments. Measurements of the wave-lengths of the band heads show that they are identical with the bands obtained in the Tesla discharge in benzene vapour1,2.
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ASUNDI, R., PADHYE, M. Near Ultra-Violet Emission Bands of Benzene. Nature 156, 368 (1945). https://doi.org/10.1038/156368a0
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DOI: https://doi.org/10.1038/156368a0
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