Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-20T00:24:34.311Z Has data issue: false hasContentIssue false
  • English
  • Français

Crossed Molecular Beam Experiments of Radical-Neutral Reactions Relevant to the Formation of Hydrogen Deficient Molecules in Extraterrestrial Environments

Published online by Cambridge University Press:  25 May 2016

R. I. Kaiser ,
N. Balucani ,
O. Asvany  and
Y. T. Lee
R. I. Kaiser
Affiliation:
Institute of Atomic and Molecular Sciences, 1, Section 4, Roosevelt Rd., 107 Taipei, Taiwan, ROC
N. Balucani
Affiliation:
Institute of Atomic and Molecular Sciences, 1, Section 4, Roosevelt Rd., 107 Taipei, Taiwan, ROC
O. Asvany
Affiliation:
Institute of Atomic and Molecular Sciences, 1, Section 4, Roosevelt Rd., 107 Taipei, Taiwan, ROC
Y. T. Lee
Affiliation:
Institute of Atomic and Molecular Sciences, 1, Section 4, Roosevelt Rd., 107 Taipei, Taiwan, ROC

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

During the last 5 years, laboratory experiments relevant to the formation of carbon-bearing molecules in extraterrestrial environments have been performed employing the crossed molecular beam technique and a high intensity source of ground state atomic carbon, C(3Pj). These investigations unraveled for the first time detailed information on the chemical reaction dynamics, involved collision complexes and intermediates, and – most important – reaction products of neutral-neutral reactions. Here, we extend these studies even further, and report on very recent crossed beam experiments of cyano radical, CN(2Σ+), reactions with unsaturated hydrocarbons to form nitriles in extraterrestrial environments and Saturn's moon Titan. Further, preliminary results on reactions of small carbon clusters and with acetylene, ethylene, and methylacetylene to synthesize hydrogen-deficient carbon-bearing molecules are presented.

Type
Part 4. Basic Molecular Processes
Information
Symposium - International Astronomical Union , Volume 197: Astrochemistry: From Molecular Clouds to Planetary Systems , 2000 , pp. 251 - 264
Copyright
Copyright © Astronomical Society of the Pacific 2000 

References

Alksne, Z.K., Alksnis, A.K., & Dzervitis, U.K. 1991, Properties of Galactic Carbon Stars (Orbit Book: Malabar)Google Scholar
Balucani, N., Mebel, A., Asvany, O., Chang, A.H.H., Lin, S.H., Lee, Y.T., & Kaiser, R.I. 1999, J. Chem. Phys., submitted Google Scholar
Herbst, E. & Klemperer, W. 1973, ApJ, 185, 505 CrossRefGoogle Scholar
Huang, L.C.L., Lee, Y.T., & Kaiser, R.I. 1999, J. Chem. Phys., 110, 7119 Google Scholar
Kaiser, R.I., Hahndorf, I., Huang, L.C.L., Lee, Y.T., Bettinger, H.F., Schleyer, P., & Schaefer III, H.F. 1999a, J. Chem. Phys., 110, 6091 Google Scholar
Kaiser, R.I., Lee, Y.T., & Suits, A.G. 1996a, J. Chem. Phys., 105, 8705 Google Scholar
Kaiser, R.I., Ochsenfeld, C., Head-Gordon, M., & Lee, Y.T. 1999b, J. Chem. Phys., 110, 2391 CrossRefGoogle Scholar
Kaiser, R.I., Ochsenfeld, C., Head-Gordon, M., Lee, Y.T., & Suits, A.G. 1996b, Science, 274, 1508 Google Scholar
Kaiser, R.I., Ochsenfeld, C., Stranges, D., Head-Gordon, M., & Lee, Y.T. 1998, J. Chem. Soc. Farad. Discussion, 109, 183 Google Scholar
Kaiser, R.I., Stranges, D., Bevsek, H.M., Lee, Y.T., & Suits, A.G. 1997a, J. Chem. Phys., 106, 4945 Google Scholar
Kaiser, R.I., Stranges, D., Lee, Y.T., & Suits, A.G. 1996c, J. Chem. Phys., 105, 8721 Google Scholar
Kaiser, R.I. & Suits, A.G. 1995, Rev. Sci. Instr., 66, 5405 Google Scholar
Kaiser, R.I., Sun, W., Suits, A.G., & Lee, Y.T. 1997b, J. Chem. Phys., 107, 8713 Google Scholar
Kaiser, R.I., et al. 1999c, Rev. Sci. Instr., 70, 4185 Google Scholar
Lee, Y.T. 1987, Science, 236, 793 Google Scholar
Scheffler, H. & Elsässer, H. 1988, Physics of the Galaxy and Interstellar Matter (Springer: Berlin)Google Scholar
Smith, I.W.M. 1997, in Molecules in Astrophysics: Probes and Processes, ed. van Dishoeck, E.F. (Kluwer: Dordrecht), 253 Google Scholar