Sign on

SAO/NASA ADS Physics Abstract Service


· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· References in the article
· Citations to the Article (116) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Unified description of temperature-dependent hydrogen-bond rearrangements in liquid water
Authors:
Smith, Jared D.; Cappa, Christopher D.; Wilson, Kevin R.; Cohen, Ronald C.; Geissler, Phillip L.; Saykally, Richard J.
Publication:
Proceedings of the National Academy of Science, vol. 102, Issue 40, p.14171-14174
Publication Date:
10/2005
Category:
CHEMISTRY
Origin:
PNAS
DOI:
10.1073/pnas.0506899102
Bibliographic Code:
2005PNAS..10214171S

Abstract

The unique chemical and physical properties of liquid water are a direct result of its highly directional hydrogen-bond (HB) network structure and associated dynamics. However, despite intense experimental and theoretical scrutiny spanning more than four decades, a coherent description of this HB network remains elusive. The essential question of whether continuum or multicomponent ("intact," "broken bond," etc.) models best describe the HB interactions in liquid water has engendered particularly intense discussion. Most notably, the temperature dependence of water's Raman spectrum has long been considered to be among the strongest evidence for a multicomponent distribution. Using a combined experimental and theoretical approach, we show here that many of the features of the Raman spectrum that are considered to be hallmarks of a multistate system, including the asymmetric band profile, the isosbestic (temperature invariant) point, and van't Hoff behavior, actually result from a continuous distribution. Furthermore, the excellent agreement between our newly remeasured Raman spectra and our model system further supports the locally tetrahedral description of liquid water, which has recently been called into question [Wernet, P., et al. (2004) Science 304, 995-999]. continuous distribution | hydrogen-bond structure | isosbestic points
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)


Find Similar Abstracts:

Use: Authors
Title
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints