Energetic and fragmentation stability of water clusters (H2O)(n), n=2-30

TitleEnergetic and fragmentation stability of water clusters (H2O)(n), n=2-30
Publication TypeJournal Article
Year of Publication2011
AuthorsLiu XJ, Lu WC, Wang CZ, Ho KM
Journal TitleChemical Physics Letters
Volume508
Pages270-275
Date Published05/27
ISBN Number0009-2614
Accession NumberISI:000290750400017
Keywordsab-initio, BINDING-ENERGIES, form, hexamer clusters, spectra, spectroscopy
Abstract

Ab initio calculations have been performed to study the structural trend, energetic stability, and fragmentation behavior of water clusters (H2O)(2-30). We show that as size increases, the cluster structures evolve from a mono-ring motif to multi-ring and ring-stacking motifs, and then to stuffed cage structures. We also show that losing water molecules one-by-one is the most favorable fragmentation channel with a dissociation energy of similar to 11.53 kcal/mol. Small water clusters such as water dimer, trimer, and tetramer, can also be observed in the fragmentation products since they often appear in the second best fragmentation channel. (C) 2011 Elsevier B. V. All rights reserved.

URL<Go to ISI>://000290750400017
DOI10.1016/j.cplett.2011.04.055
Alternate JournalChem Phys LettChem Phys Lett