Abstract
In the present work, all adiabatic potential energy curves, spectroscopic constants and dipole moments of CaH+ molecular ion dissociating below the ionic limit Ca2+H− are presented. These curves are determined by an ab initio approach involving a non-empirical pseudo-potential for the Ca core, core-valence correlation accounted in operator form with two types of core polarization potentials (CPP) and full valence Configuration Interaction. The molecule is thus treated as a two-electron system. The potential energy curves and the spectroscopic constants are presented. In addition, the permanent and transition dipole moments are calculated for most of the states and reveal the underlying ionic states. A rather good agreement with the available theoretical works in the literature is obtained for the spectroscopic constants of the lowest states of the CaH+ molecule.
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References
T.P. Snow, in Interstellar Molecules, Proceeding of the IAU Symposium, edited by B.H. Andrew (Reidel, Dordrecht, 1992), p. 247
L.E. Snyder, in Astrochemistry of Cosmic Phenomena, Proceedings of the IAU Symposium, edited by P.D. Singh (Kluwer Academic, Dordecht, 1992), p. 427
C. Arpigny, F. Dossin, J. Manfroid, P. Magain, A.C. Danks, D.L. Lambert, C. Sterken, The Messenger 45, 8 (1986)
K. Sinha, Proc. Astron. Soc. Australia 9, 32 (1991)
J. Dufay, in Introduction to Astrophysics: The Stars (Dover, New York, 1964), p. 142
E. Anders, N. Gresvesse, Geochim. Cosmochim. Acta 53, 197 (1989)
C.W. Allen, in Astrophysical Quantities (Athlone, University of London, London, 1973), p. 37
K. Sinha, B.M. Tripathi, R.M. Atalla, P.D. Singh, Sol. Phys. 115, 221 (1988)
N. Honlou, M. Tkagi, M. Makita, K. Ohno, J. Phys. Soc. Jpn 50, 2095 (1981)
G. Jeung, J.D. Daudey, J.P. Malrieu, Chem. Phys. Lett. 98, 433 (1983)
P. Fuentealba, O. Reyes, H. Stoll, H. Preuss, J. Chem. Phys. 87, 5338 (1987)
L.G.H. Pettersson, P.E.M. Siegbahn, S. Ismail, Chem. Phys. 82, 355 (1983)
G. Chambaud, B. Levy, J. Phys. B 22, 3155 (1989)
B. Peart, J.G. Stevenson, K.T. Dolder, J. Phys. B 6, 146 (1973)
I.C. Lyon, B. Peart, J.B. West, K. Dolder, J. Phys. B 19, 4137 (1986)
F.J. Wuilleumier, D.J. Ederer, J.L. Picque, J. Mol. Phys. 23, 198 (1987)
F.J. Wuilleumier, J.M. Bizau, D. Cubaynes, M. Richter, Synchrotron Radiat. News 3, 10 (1990)
G. Miecznikt, K.A. Berrington, P.G. Burke, A. Hibbert, J. Phys. B At. Mol. Opt. Phys. 23, 3305 (1990)
A. Boutalib, J.P. Daudey, M. El Mouhtadi, Chem. Phys. 167, 111 (1992)
S. Canuto, A.C. Marcos, K. Sinha, Phys. Rev. A 48, 2461 (1993)
T.S. Monteiro, G. Danby, I.L. Cooper, A.S. Dickinson, E.L. Lewis, J. Phys. B At. Mol. Opt. Phys. 21, 4165 (1988)
M. Aymar, R. Guérout, M. Sahlaoui, O. Dulieu, J. Phys. B At. Mol. Opt. Phys. 42, 154025 (2009)
J.B. Schilling, W.A. Goddard III, J.L. Beauchamp, J. Am. Chem. Soc. 108, 4 (1986)
Ph. Durand, J.C. Barthelat, J.P. Daudey, Theor. Chim. Acta 38, 283 (1975)
J.C. Barthelat, Ph. Durand, Gazz. Chim. Ital. 108, 225 (1978)
B. Huron, J.P. Malrieu, P. Rancurel, J. Chem. Phys. 58, 5745 (1973)
M. Pélissier, N. Komiha, J.P. Daudey, J. Comput. Chim. 9, 298 (1988)
M. Foucrault, Ph. Millie, J.P. Daudey, J. Chem. Phys. 96, 1257 (1992)
P. Duplaa, F. Spiegelmann, J. Chem. Phys. 105, 1492 (1996)
M. Groß, F. Spiegelmann, Eur. Phys. J. D 4, 219 (1998)
R. Poteau, F. Spiegelmann, J. Mol. Spectrosc. 171, 299 (1995)
S. Evangelisti, J.P. Daudey, J.P. Malrieu, Chem. Phys. 75, 91 (1983)
F.X. Gadea, M. Pelissier, J. Chem. Phys. 93, 545 (1990)
A. Boutalib, F.X. Gadea, J. Chem. Phys. 97, 1144 (1992)
H. Berriche, F.X. Gadea, Chem. Phys. Lett. 247, 85 (1995)
W. Müller, J. Flesch, W. Meyer, J. Chem. Phys. 80, 3297 (1984)
J. Mitroy, J.Y. Zhang, Eur. Phys. J. D 46, 415 (2008)
S. Magnier, Ph. Millié, O. Dulieu, F. Masnou-Seeuws, J. Chem. Phys. 98, 7113 (1993)
W. Zrafi, B. Oujia, H. Berriche, F.X. Gadea, J. Mol. Struct. 777, 87 (2006)
NIST ASD Team, NIST Atomic Spectra National Institute of Standards and Technology, Gaithersburg, MD, USA (2008). [Online] Available: http://physics.nist.gov/PhysRefData/Handbook/Tables
C.L. Pekeris, Phys. Rev. 126, 1470 (1962)
F. Spiegelmann, private communication
P. Fuentealba, O. Reyes, Mol. Phys. 62, 1291 (1987)
R.H. McFarland, A.S. Schlachter, J.W. Stearns, B. Liu, R.E. Olson, Phys. Rev. A 26, 775 (1982)
R.J. Bartlett, Ann. Rev. Phys. Chem. 32, 359 (1981)
S. Wilson, in Electron Correlation in Molecules (Clarendon, Oxford, 1984)
H. Croft, A.S. Dickinson, F.X. Gadea, J. Phys. B 32, 81 (1999)
A.S. Dickinson, R. Poteau, F.X. Gadea, J. Phys. B 32, 5451 (1999)
A.K. Belyaev, P.S. Barklem, A.S. Dickinson, F.X. Gadea, Phys. Rev. A 81, 032706 (2010)
P.S. Barklem, A.K. Belyaev, A.S. Dickinson, F.X. Gadea, Astron. Astrophys. 519, A20 (2010)
R. Hoffmann, J. Chem. Phys. 39, 1397 (1963)
F.X. Gadea, Phys. Rev. A 43, 1160 (1991)
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Habli, H., Ghalla, H., Oujia, B. et al. Ab initio study of spectroscopic properties of the calcium hydride molecular ion. Eur. Phys. J. D 64, 5–19 (2011). https://doi.org/10.1140/epjd/e2011-10689-y
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DOI: https://doi.org/10.1140/epjd/e2011-10689-y