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Rovibrational structures in floppy triatomics: Distributed Gaussian functions treatment for the Ne2H- system

AuthorsBaccarelli, Isabella; Gianturco, Franco Antonio; González-Lezana, Tomás ; Delgado Barrio, Gerardo ; Miret-Artés, Salvador ; Villarreal, Pablo
Issue Date2006
PublisherAmerican Chemical Society
CitationThe journal of physical chemistry, A, Molecules, spectroscopy, kinetics, environment & general theory 110: 5487- 5494 (2006)
AbstractThe full sequence of the bound states for a very floppy triatomic complex, Ne2H- in its ground electronic state, are initially computed for the rotationless situation and employing a variational approach that expands the total nuclear wave function over a large set of symmetry-adapted, distributed Gaussian functions and employs accurate atom - atom potential energy data. The results are tested for numerical convergence, compared with the behavior of both its diatomic fragments, Ne2 and NeH-, and further compared with the results for the Ne3 case. The computational analysis is extended to the production of the rotational constants for the very nonclassical ground state vibrational configuration by making use of the previous findings. The method is shown to provide us with several illuminating details on the nanoscopic internal dynamics of this very weakly bound quantum aggregate. © 2006 American Chemical Society.
Identifiersdoi: 10.1021/jp0563890
issn: 1089-5639
Appears in Collections:(CFMAC-IFF) Artículos
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