Advertisement

Interstellar isomeric species: Energy, stability and abundance relationship

  • Emmanuel E. EtimEmail author
  • Elangannan Arunan
Regular Article

Abstract.

Accurate enthalpies of formation are reported for known and potential interstellar isomeric species using high-level ab initio quantum-chemical calculations. A total of 130 molecules comprising of 31 isomeric groups and 24 cyanide/isocyanide pairs with molecules ranging from 3 to 12 atoms have been considered. The results show an interesting relationship between energy, stability and abundance (ESA) existing among these molecules. Among the isomeric species, isomers with lower enthalpies of formation are more easily observed in the interstellar medium compared to their counterparts with higher enthalpies of formation. Available data in the literature confirm the high abundance of the most stable isomer over other isomers in the different groups considered. Potential for interstellar hydrogen bonding accounts for the few exceptions observed. Thus, in general, it suffices to say that the interstellar abundances of related species could be linked to their stabilities if other factors do not dominate. The immediate consequences of this relationship in addressing some of the whys and wherefores among interstellar molecules and in predicting some possible candidates for future astronomical observations are discussed.

References

  1. 1.
    P. Thaddeus, M. Guélin, R.A. Linke, Astrophys. J. 246, 41 (1971)CrossRefGoogle Scholar
  2. 2.
    E. Herbst, Chem. Soc. Rev. 30, 168 (2001)CrossRefGoogle Scholar
  3. 3.
    E.E. Etim, E. Arunan, Planex Newslett. 5, 16 (2015)Google Scholar
  4. 4.
    T.D. Crawford, J.F. Stanton, J.C. Saeh, H.F. Schaefer, J. Am. Chem. Soc. 121, 1902 (1999)CrossRefGoogle Scholar
  5. 5.
    G. Wlodarczak, J. Mol. Struct. 347, 131 (1995)ADSCrossRefGoogle Scholar
  6. 6.
    A.J. Remijan, J.M. Hollis, F.J. Lovas, D.F. Plusquellic, P.R. Jewell, Astrophys. J. 632, 333 (2005)ADSCrossRefGoogle Scholar
  7. 7.
    J.M. Hollis, in Proceedings of the IAU Symposium, Vol. 231, edited by D.C. Lis, G.A. Blake, E. Herbst (2005)Google Scholar
  8. 8.
    A.G.G.M. Tielens, Rev. Mod. Phys. 85, 1021 (2013)ADSCrossRefGoogle Scholar
  9. 9.
    R.L. Hudson, M.H. Moore, Icarus 172, 466 (2004)ADSCrossRefGoogle Scholar
  10. 10.
    M. Lattelais, F. Pauzat, Y. Ellinger, C. Ceccarelli, Astrophys. J. 696, L133 (2009)ADSCrossRefGoogle Scholar
  11. 11.
    M.J. Frisch, G.W. Trucks, H.B. Schlegel, G.E. Scuseria, M.A. Robb, J.R. Cheeseman, G. Scalmani, V. Barone, B. Mennucci, G.A. Petersson, Gaussian 09, revision D.01 (Gaussian, Inc., Wallingford, CT, 2009)Google Scholar
  12. 12.
    J.M.L. Martin, G. de Oliveira, J. Chem. Phys. 111, 1843 (1999)ADSCrossRefGoogle Scholar
  13. 13.
    L.A. Curtiss, P.C. Redfern, K. Raghavachari, J. Chem. Phys. 126, 084108 (2007)ADSCrossRefGoogle Scholar
  14. 14.
    L.A. Curtiss, P.C. Redfern, K. Raghavachari, J. Chem. Phys. 127, 124105 (2007)ADSCrossRefGoogle Scholar
  15. 15.
    L.A. Curtiss, K. Raghavachari, P.C. Redfern, J.A. Pople, J. Chem. Phys. 106, 1063 (1997)ADSCrossRefGoogle Scholar
  16. 16.
  17. 17.
    B. Zuckerman, M. Morris, P. Palmer, B.E. Turner, Astrophys. J. 173, 125 (1972)ADSCrossRefGoogle Scholar
  18. 18.
    G.L. Blackman, R.D. Brown, P.D. Godfrey, H.I. Gunn, Nature 261, 395 (1976)ADSCrossRefGoogle Scholar
  19. 19.
    B.E. Turner, T.C. Steimle, L. Meerts, Astrophys. J. 426, 97 (1994)ADSCrossRefGoogle Scholar
  20. 20.
    L.M. Ziurys, A.J. Apponi, M. Guélin, J. Cernicharo, Astrophys. J. 445, 47 (1995)ADSCrossRefGoogle Scholar
  21. 21.
    K. Kawaguchi, E. Kagi, T. Hirano, S. Takano, S. Saito, Astrophys. J. 406, 39 (1993)ADSCrossRefGoogle Scholar
  22. 22.
    M. Guélin, J. Cernicharo, C. Kahane, J. Gomez-Gonzales, Astron. Astrophys. 157, L17 (1986)ADSGoogle Scholar
  23. 23.
    M. Guelin, R. Lucas, J. Cernicharo, Astron. Astrophys. 280, 19 (1993)ADSGoogle Scholar
  24. 24.
    M. Guélin, S. Muller, J. Cernicharo, A.J. Apponi, M.C. McCarthy, C.A. Gottlieb, P. Thaddeus, Astron. Astrophys. 369, L9 (2000)ADSGoogle Scholar
  25. 25.
    M. Guélin, S. Muller, J. Cernicharo, M.C. McCarthy, P. Thaddeus, Astron. Astrophys. 426, L49 (2004)ADSCrossRefGoogle Scholar
  26. 26.
    L.M. Ziurys, C. Savage, J.L. Highberger, A.J. Apponi, M. Guélin, J. Cernicharo, Astrophys. J. 564, 45 (2002)ADSCrossRefGoogle Scholar
  27. 27.
    B.T. Soifer, R.C. Puetter, R.W. Russell, S.P. Willner, P.M. Harvey, F.C. Gillett, Astrophys. J. 232, 53 (1979)ADSCrossRefGoogle Scholar
  28. 28.
    P.P. Tennekes, J. Harju, M. Juvela, L.V. Tóth, Astron. Astrophys. 456, 1037 (2006)ADSCrossRefGoogle Scholar
  29. 29.
    W.M. Irvine, F.P. Schloerb, Astrophys. J. 282, 516 (1984)ADSCrossRefGoogle Scholar
  30. 30.
    J.E. Dickens, W.M. Irvine, M. Ohishi, M. Ikeda, S. Ishikawa, A. Nummelin, A. Hjalmarson, Astrophys. J. 489, 753 (1997)ADSCrossRefGoogle Scholar
  31. 31.
    J. Cernicharo, A.M. Heras, A.G.G.M. Tielens, P.R. Pardo, F. Herpin, M. Guélin, L.B.F.M. Waters, Astrophys. J. 546, L123 (2001)ADSCrossRefGoogle Scholar
  32. 32.
    J.M. Hollis, A.J. Remijan, P.R. Jewell, F.J. Lovas, Astrophys. J. 642, 933 (2006)ADSCrossRefGoogle Scholar
  33. 33.
    P. Thaddeus, S.E. Cummins, R.A. Linke, Astrophys. J. 283, 45 (1984)ADSCrossRefGoogle Scholar
  34. 34.
    P. Thaddeus, J.M. Vrtilek, C.A. Gottlieb, Astrophys. J. 299, 63 (1985)ADSCrossRefGoogle Scholar
  35. 35.
    J. Cami, J. Bernard-Salas, E. Peeters, S.E. Malek, Science 329, 1180 (2010)ADSCrossRefGoogle Scholar
  36. 36.
    O. Berné, G. Mulas, C. Joblin, Astron. Astrophys. 550, L4 (2013)ADSCrossRefGoogle Scholar
  37. 37.
    P. Thaddeus, J.M. Vrtilek, C.A. Gottlieb, Astrophys. J. 299, 63 (1985)ADSCrossRefGoogle Scholar
  38. 38.
    J. Cami, J. Bernard-Salas, E. Peeters, S.E. Malek, Science 329, 1180 (2010)ADSCrossRefGoogle Scholar
  39. 39.
    O. Berné, G. Mulas, C. Joblin, Astron. Astrophys. 550, L4 (2013)ADSCrossRefGoogle Scholar

Copyright information

© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Inorganic and Physical Chemistry DepartmentIndian Institute of Science BangaloreBangaloreIndia
  2. 2.Department of Chemical SciencesFederal University WukariWukariNigeria

Personalised recommendations