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Quantum effects on the stability of the He5I2 van der Waals conformers

AuthorsValdés, Álvaro ; Prosmiti, Rita
KeywordsEakly bounded doped systems
Nuclear quantum treatments
Microsolvation effects
Helium nanodroplets
Issue Date30-May-2019
PublisherJohn Wiley & Sons
CitationJournal of Computational Chemistry 40, 2200–2206 (2019)
AbstractWe present 15-dimensional quantum multiconfiguration time-dependent Hartree calculations of the vibrational levels of the HeI van der Waals (vdW) complex employing an ab initio-based potential energy surface (PES). The energies and spatial features of such bound structures are analyzed, providing predictions on the structures and relative stabilities of its three lowest isomers. We found that the most stable isomer corresponds to all five He atoms encircling the I molecule, indicating that in this case the anharmonic quantum effects do not stabilize the isomers involving a He atom in a linear configuration as reported previously for the smaller HeI systems. Such finding provides information on the overall structuring of the finite-size-solvent systems, highlighting the intriguing interplay between weak intermolecular interactions and quantum effects. © 2019 Wiley Periodicals, Inc.
Description7 pags., 6 figs., 2 tabs.
Publisher version (URL)http://dx.doi.org/10.1002/jcc.25870
Identifiersdoi: 10.1002/jcc.25870
issn: 1096-987X
Appears in Collections:(CFMAC-IFF) Artículos
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