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Title

A theoretical characterization of multiple isomers of the He 2I 2 complex

AuthorsValdés, Álvaro ; Barragán, Patricia ; Pérez de Tudela, Ricardo ; Delgado Tellez, Laura; Medina, J. S.
Issue Date2012
PublisherElsevier
CitationChemical Physics 399: 39- 45 (2012)
AbstractThe present work has been directed at studying the structures and stabilization energetics of different conformers of the ground state He 2I 2 cluster. The full interaction between I 2 molecule and the He atoms is obtained from a sum-of-potentials scheme, using an analytical He-I 2 potential parametrized to ab initio calculations plus the He-He interaction. Quantum mechanical variational calculations are carried out, and binding energies as well as radial/angular probability density distributions are computed for the lower-lying vibrational van der Waals states. We found that they correspond to three different structural models, namely tetrahedral, linear and 'police-nightstick'. Comparison of these results with recent experimental data available from high-resolution spectroscopy for similar tetraatomic He 2-dihalogen complexes, contributes to evaluate their relative stability, and provides information about the importance of the multiple minima (global and local) of the potential surface used. © 2011 Elsevier B.V. All rights reserved.
URIhttp://hdl.handle.net/10261/65218
DOI10.1016/j.chemphys.2011.06.007
Identifiersdoi: 10.1016/j.chemphys.2011.06.007
issn: 0301-0104
Appears in Collections:(CFMAC-IFF) Artículos
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