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.
Similar content being viewed by others
References
P. Thaddeus, M. Guélin, R.A. Linke, Astrophys. J. 246, 41 (1971)
E. Herbst, Chem. Soc. Rev. 30, 168 (2001)
E.E. Etim, E. Arunan, Planex Newslett. 5, 16 (2015)
T.D. Crawford, J.F. Stanton, J.C. Saeh, H.F. Schaefer, J. Am. Chem. Soc. 121, 1902 (1999)
G. Wlodarczak, J. Mol. Struct. 347, 131 (1995)
A.J. Remijan, J.M. Hollis, F.J. Lovas, D.F. Plusquellic, P.R. Jewell, Astrophys. J. 632, 333 (2005)
J.M. Hollis, in Proceedings of the IAU Symposium, Vol. 231, edited by D.C. Lis, G.A. Blake, E. Herbst (2005)
A.G.G.M. Tielens, Rev. Mod. Phys. 85, 1021 (2013)
R.L. Hudson, M.H. Moore, Icarus 172, 466 (2004)
M. Lattelais, F. Pauzat, Y. Ellinger, C. Ceccarelli, Astrophys. J. 696, L133 (2009)
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)
J.M.L. Martin, G. de Oliveira, J. Chem. Phys. 111, 1843 (1999)
L.A. Curtiss, P.C. Redfern, K. Raghavachari, J. Chem. Phys. 126, 084108 (2007)
L.A. Curtiss, P.C. Redfern, K. Raghavachari, J. Chem. Phys. 127, 124105 (2007)
L.A. Curtiss, K. Raghavachari, P.C. Redfern, J.A. Pople, J. Chem. Phys. 106, 1063 (1997)
http://webbook.nist.gov/chemistry/, accessed in May 2016
B. Zuckerman, M. Morris, P. Palmer, B.E. Turner, Astrophys. J. 173, 125 (1972)
G.L. Blackman, R.D. Brown, P.D. Godfrey, H.I. Gunn, Nature 261, 395 (1976)
B.E. Turner, T.C. Steimle, L. Meerts, Astrophys. J. 426, 97 (1994)
L.M. Ziurys, A.J. Apponi, M. Guélin, J. Cernicharo, Astrophys. J. 445, 47 (1995)
K. Kawaguchi, E. Kagi, T. Hirano, S. Takano, S. Saito, Astrophys. J. 406, 39 (1993)
M. Guélin, J. Cernicharo, C. Kahane, J. Gomez-Gonzales, Astron. Astrophys. 157, L17 (1986)
M. Guelin, R. Lucas, J. Cernicharo, Astron. Astrophys. 280, 19 (1993)
M. Guélin, S. Muller, J. Cernicharo, A.J. Apponi, M.C. McCarthy, C.A. Gottlieb, P. Thaddeus, Astron. Astrophys. 369, L9 (2000)
M. Guélin, S. Muller, J. Cernicharo, M.C. McCarthy, P. Thaddeus, Astron. Astrophys. 426, L49 (2004)
L.M. Ziurys, C. Savage, J.L. Highberger, A.J. Apponi, M. Guélin, J. Cernicharo, Astrophys. J. 564, 45 (2002)
B.T. Soifer, R.C. Puetter, R.W. Russell, S.P. Willner, P.M. Harvey, F.C. Gillett, Astrophys. J. 232, 53 (1979)
P.P. Tennekes, J. Harju, M. Juvela, L.V. Tóth, Astron. Astrophys. 456, 1037 (2006)
W.M. Irvine, F.P. Schloerb, Astrophys. J. 282, 516 (1984)
J.E. Dickens, W.M. Irvine, M. Ohishi, M. Ikeda, S. Ishikawa, A. Nummelin, A. Hjalmarson, Astrophys. J. 489, 753 (1997)
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)
J.M. Hollis, A.J. Remijan, P.R. Jewell, F.J. Lovas, Astrophys. J. 642, 933 (2006)
P. Thaddeus, S.E. Cummins, R.A. Linke, Astrophys. J. 283, 45 (1984)
P. Thaddeus, J.M. Vrtilek, C.A. Gottlieb, Astrophys. J. 299, 63 (1985)
J. Cami, J. Bernard-Salas, E. Peeters, S.E. Malek, Science 329, 1180 (2010)
O. Berné, G. Mulas, C. Joblin, Astron. Astrophys. 550, L4 (2013)
P. Thaddeus, J.M. Vrtilek, C.A. Gottlieb, Astrophys. J. 299, 63 (1985)
J. Cami, J. Bernard-Salas, E. Peeters, S.E. Malek, Science 329, 1180 (2010)
O. Berné, G. Mulas, C. Joblin, Astron. Astrophys. 550, L4 (2013)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Etim, E.E., Arunan, E. Interstellar isomeric species: Energy, stability and abundance relationship. Eur. Phys. J. Plus 131, 448 (2016). https://doi.org/10.1140/epjp/i2016-16448-0
Received:
Accepted:
Published:
DOI: https://doi.org/10.1140/epjp/i2016-16448-0