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Chemical, Optical, and Infrared Properties of Quenched Carbonaceous Composites (QCCs)

Published online by Cambridge University Press:  23 September 2016

Akira Sakata  and
Setsuko Wada
Akira Sakata
Affiliation:
Department of Applied Physics and Chemistry, University of Electro-Communications
Setsuko Wada
Affiliation:
Laboratory of Chemistry, University of Electro-Communications

Abstract

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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.

Type
Section II: The Overidentified Infrared Emission Features
Information
Symposium - International Astronomical Union , Volume 135: Interstellar Dust , 1989 , pp. 191 - 196
Copyright
Copyright © Kluwer 1989 

References

Sakata, A., Wada, S., Okutsu, Y., Shintani, H., and Nakada, Y. 1983, Nature, 301, 493.Google Scholar
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Sakata, A., Wada, S., Onaka, T., and Tokunaga, A. T. 1987, Ap. J. (Letters), 320, L63.Google Scholar