UZH-Logo

Maintenance Infos

Car–Parrinello molecular dynamics simulation of the hydrated calcium ion


Bakó, I; Hutter, J; Pálinkás, G (2002). Car–Parrinello molecular dynamics simulation of the hydrated calcium ion. Journal of Chemical Physics, 117(21):9838-9843.

Abstract

First principles molecular dynamics has been used to investigate the structural, vibrational, and energetic properties of [Ca(H2O)(n)](2+) clusters with n=1-9, and the hydration shell of a calcium ion in a periodically repeated box with 54 water molecules. We find that, while stable highly symmetric Ca-water clusters can be formed with up to eight water molecules, the n=9 cluster dissociates into the last stable [Ca(H2O)8](2+) complex. In solution the first hydration shell around the Ca2+ ion contains six water molecules in an octahedral arrangement. The electronic structure of nearest neighbor hydration shell water molecules has been examined with a localized orbital analysis. The average dipole moments of hydration water molecules was found to be increased by about 0.4 Debye relative to that of pure water.

First principles molecular dynamics has been used to investigate the structural, vibrational, and energetic properties of [Ca(H2O)(n)](2+) clusters with n=1-9, and the hydration shell of a calcium ion in a periodically repeated box with 54 water molecules. We find that, while stable highly symmetric Ca-water clusters can be formed with up to eight water molecules, the n=9 cluster dissociates into the last stable [Ca(H2O)8](2+) complex. In solution the first hydration shell around the Ca2+ ion contains six water molecules in an octahedral arrangement. The electronic structure of nearest neighbor hydration shell water molecules has been examined with a localized orbital analysis. The average dipole moments of hydration water molecules was found to be increased by about 0.4 Debye relative to that of pure water.

Citations

115 citations in Web of Science®
115 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

96 downloads since deposited on 27 Mar 2009
28 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:2002
Deposited On:27 Mar 2009 10:24
Last Modified:20 May 2016 12:01
Publisher:American Institute of Physics
ISSN:0021-9606
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1063/1.1517039
Permanent URL: https://doi.org/10.5167/uzh-3192

Download

[img]
Preview
Content: Published Version
Filetype: PDF
Size: 1MB
View at publisher

TrendTerms

TrendTerms displays relevant terms of the abstract of this publication and related documents on a map. The terms and their relations were extracted from ZORA using word statistics. Their timelines are taken from ZORA as well. The bubble size of a term is proportional to the number of documents where the term occurs. Red, orange, yellow and green colors are used for terms that occur in the current document; red indicates high interlinkedness of a term with other terms, orange, yellow and green decreasing interlinkedness. Blue is used for terms that have a relation with the terms in this document, but occur in other documents.
You can navigate and zoom the map. Mouse-hovering a term displays its timeline, clicking it yields the associated documents.

Author Collaborations