Abstract
Quenched carbonaceous composite (QCC) was synthesized by quenching the plasma of methane gas. Chemical properties as well as optical and infrared spectra of the QCC and “oxidized” QCC were measured. Good agreement of the IR spectra of the QCCs to the unidentified infrared (UIR) emission bands was obtained. Correspondence of their features to molecular structures in the QCC was estimated. It is concluded that a “cross-conjugated ketone” structure (CCK) caused the 6.2, 7.7, and 8.6 μm features and “solo” H atoms on carbon are responsible for the 3.3 and 11.3 μm features.
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References
Sakata, A., Wada, S., Okutsu, Y., Shintani, H., and Nakada, Y. 1983, Nature, 301, 493.
Sakata, A., Wada, S., Tanabe, T., and Onaka, T. 1984, Ap. J. (Letters), 287, L51.
Sakata, A., Wada, S., Onaka, T., and Tokunaga, A. T. 1987, Ap. J. (Letters), 320, L63.
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© 1989 International Astronomical Union
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Sakata, A., Wada, S. (1989). Chemical, Optical, and Infrared Properties of Quenched Carbonaceous Composites (QCCS). In: Allamandola, L.J., Tielens, A.G.G.M. (eds) Interstellar Dust. International Astronomical Union / Union Astronomique Internationale, vol 135. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2462-8_17
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DOI: https://doi.org/10.1007/978-94-009-2462-8_17
Publisher Name: Springer, Dordrecht
Print ISBN: 978-0-7923-0449-4
Online ISBN: 978-94-009-2462-8
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