Novel Ion Chemistry of Interstellar Polycyclic Aromatic Hydrocarbons

  • D. K. Bohme
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 165)


Results of laboratory measurements are presented for gas-phase reactions of ground-state atomic silicon ions in the absence and presence of naphthalene, the simplest polycyclic aromatic hydrocarbon molecule. Naphthalene is observed to attach to Si+ and to alter its chemistry. The observed gas-phase reactions of the Si+.naphthalene adduct are viewed as “surface reactions”. They provide a novel route for the synthesis of Si-bearing molecules. The results have implications for the role of polycyclic aromatic hydrocarbons in promoting surface reactions of Si+ and other atomic ions in interstellar environments, both in the gas phase and on graphitic grains.


Polycyclic Aromatic Hydrocarbon Neutral Product Naphthalene Molecule Neutral Reagent Interstellar Molecule 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1a.
    Leger, A., Puget, J.L.: 1984, Astron. Astrophys. 137, L5.ADSGoogle Scholar
  2. 1b.
    Allamandola, L.J., Tielens, A.G.G.M., Barker, J.R.: 1985, Astrophys. J. 290, L25.ADSCrossRefGoogle Scholar
  3. 2a.
    Van der Zwet, G.P., Allamandola, L.J.: 1985, Astron. Astrophys. 146, 76.Google Scholar
  4. 2b.
    Leger, A., d’Hendecourt, L.B.: 1985, Astron. Astrophys. 146, 81.ADSGoogle Scholar
  5. 2c.
    Crawford, M.K., Tielens, A.G.G.M., Allamandola, L.J.: 1985, Astrophys. J. 293, L45.ADSCrossRefGoogle Scholar
  6. 3.
    Omont, A.: 1986, Astron. Astrophys. 164, 159.ADSGoogle Scholar
  7. 4.
    Duley, W.W., Williams, D.A.: 1986, Mon. Not. R. astr. Soc. 219, 859.ADSGoogle Scholar
  8. 5.
    Lepp, S., Dalgarno, A.: 1988, Astrophys. J. 324, 553.ADSCrossRefGoogle Scholar
  9. 6.
    Lepp, S., Dalgarno, A., van Dishoeck, E.F., Black, J.H.: 1988, Astrophys. J. 329, 418.ADSCrossRefGoogle Scholar
  10. 7.
    Wlodek, S., Fox, A., Bohme, D.K.: 1987, J. Am. Chem. Soc. 109, 6663.CrossRefGoogle Scholar
  11. 8.
    Wlodek, S., Rodriquez, CF., Lien, M.H., Hopkinson, A.C., Bohme, D.K.: 1988, Chem. Phys. Lett. 143, 385.ADSCrossRefGoogle Scholar
  12. 9.
    Bohme, D.K., Wlodek, S., Fox, A.: 1988, in Rate Coefficients in Astrochemistry, eds. T.J. Millar, D.A. Williams, Dordrecht, Kluwer, p. 193.Google Scholar
  13. 10.
    Wlodek, S., Bohme, D.K.: 1989, J. Chem. Soc, Faraday Trans. 2, 85, 1643.Google Scholar
  14. 11.
    Bohme, D.K., Wlodek, S., Wincel, H.: 1989, Astrophys. J. 342, L91.ADSCrossRefGoogle Scholar
  15. 12.
    Mackay, G.I., Vlachos, G.D., Bohme, D.K., Schiff, H.I.: 1980, Int. J. Mass Spectrom. Ion Phys. 36, 259.CrossRefGoogle Scholar
  16. 13.
    Raksit, A.B., Bohme, D.K.: 1983, Int. J. Mass Spectrom. Ion Phys. 55, 69.CrossRefGoogle Scholar
  17. 14.
    Herbst, E., Millar, T.J., Wlodek, S., Bohme, D.K.: 1989, Astron. Astrophys. 222, 205.ADSGoogle Scholar
  18. 15.
    Husain, D., Norris, P.E.: 1978, J. Chem. Soc. Faraday Trans. II 74, 106.CrossRefGoogle Scholar
  19. 16.
    Swearengen, P.M., Davis, S.J., Niemczyk, T.M.: 1978, Chem. Phys. Lett. 55, 274.ADSCrossRefGoogle Scholar
  20. 17.
    Ismail, Z.K., Hauge, R.H., Fredin, L., Kauffman, J.W., Margrave, J.L.: 1982, J. Chem. Phys. 77, 1617.ADSCrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • D. K. Bohme
    • 1
  1. 1.Department of Chemistry and Centre for Research in Earth and Space ScienceYork UniversityNorth YorkCanada

Personalised recommendations