Abstract
The formation of deuterated interstellar molecules is considered. This contribution (which, in the summarizing remarks of the conference, was admonished for being itself admonitory) has a simple purpose—to apply gas-phase ion chemistry to distinguish deuterium exchange reactions that can occur from those that cannot. Thus the exoergic reaction HCO+ + D → DCO+ + H is facile whereas the exoergic reaction HCO+ + HD —×→ DCO+ + H2 is not. Forbidden pathways involve energy barriers that can result from both reactants showing filled valence electron shells. A procedure is outlined for identifying such.
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References
Dalgarno, A. and Lepp, S. 1984, Ap. J. (Letters) 287, L47.
Crutcher, R. M. and Watson, W. D. 1985, in Molecular Astrophysics, eds. G. H. F. Diercksen, W. F. Huebner and P. W. Langhoff (Dordrecht: Reidel), p. 255.
Smith, D. 1987, Phil. Trans. Roy. Soc. Lond. A 323, 269.
Henchman, M., Paulson, J. F., Lindinger, W., Smith, D. and Adams, N. G., to be submitted to Chem. Phys. Lett.
Wootten, A. 1987, in Astrochemistry, eds. M. S. Vardya and S. P. Tarafdar (Dordrecht: Reidel), p. 311.
Bell, M. B., Feldman, P. A., Matthews, H. E. and Avery, L. W. 1986, Ap. J. (Letters) 311, L89.
Boesgaard, A. M. and Steigman, G. 1985, Ann. Rev. Astron. Astrophys. 23, 319.
Herbst, E., Adams, N. G., Smith, D. and DeFrees, D. J. 1987, Ap. J. 312, 351.
Smith, D. and Adams, N. G. 1984, in Ionic Processes in the Gas Phase, ed. M. A. Almoster Ferreira (Dordrecht: Reidel), p. 41.
Henchman, M. J., Smith, D. and Adams, N. G. 1982, Int. J. Mass Spectrom. Ion Phys. 42, 25.
Adams, N. G. and Smith, D. 1985, Ap. J. (Letters) 294, L63.
Federer, W., Villinger, H., Tosi, P., Bassi, D., Ferguson, E. and Lindinger, W. 1985, in Molecular Astrophysics, eds. G. H. F. Diercksen, W. F. Huebner and P. W. Langhoff (Dordrecht: Reidel), p. 649.
Smith, D., Adams, N. G. and Alge, E. 1982, Ap. J. 263, 123.
Wagman, D. D., Evans, W. H., Parker, V. B., Schumm, R. H., Halow, I., Bailey, S. M., Churney, K. L. and Nuttall, R. L. 1982, J. Phys. Chem. Ref. Data 11, Suppl. 2, pp.390–391.
Lias, S. G., Liebman, J. F. and Levin, R. D. 1984, ibid. 13, 695.
Keesee, R. G. and Castleman, A. W., Jr. 1986, ibid. 15, 1011.
Henchman, M. J., Smith, D. and Adams, N. G. Proton-Transfer Reactions, Hydrogen-Exchange Reactions, and Proton-Transfer /Hydrogen-Exchange Reactions, presented at the 28th ASMS Conference, New York City, 1980, paper WAMOC 13
Squires, R. R., DePuy, C. H. and Bierbaum, V. M. 1981, ibid. 103, 4256.
Ausloos, P. and Lias, S. G. 1981, J. Am. Chem. Soc. 103, 3641
Meot-Ner, M., Lloyd, J. R., Hunter, E. P., Agosta, W. A. and Field, F. H. 1980, J. Am. Chem. Soc. 102, 4672.
Henchman, M. J., Adams, N. G. and Smith, D. 1981, J. Chem. Phys. 75, 1201.
Adams, N. G. and Smith, D. 1987, Ap. J. (Letters) 317, L25
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Henchman, M., Smith, D., Adams, N., Paulson, J.F., Lindinger, W. (1988). Chemical Pathways for Deuterium Fractionation in Interstellar Molecules. In: Millar, T.J., Williams, D.A. (eds) Rate Coefficients in Astrochemistry. Astrophysics and Space Science Library, vol 146. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3007-0_13
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DOI: https://doi.org/10.1007/978-94-009-3007-0_13
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