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Title: Statistical Analyses of Hydrophobic Interactions: A Mini-Review

Journal Article · · Journal of Physical Chemistry. B
 [1];  [2];  [2]
  1. Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, Louisiana 70118, United States
  2. Center for Biological and Engineering Sciences, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States

Here this review focuses on the striking recent progress in solving for hydrophobic interactions between small inert molecules. We discuss several new understandings. First, the inverse temperature phenomenology of hydrophobic interactions, i.e., strengthening of hydrophobic bonds with increasing temperature, is decisively exhibited by hydrophobic interactions between atomic-scale hard sphere solutes in water. Second, inclusion of attractive interactions associated with atomic-size hydrophobic reference cases leads to substantial, nontrivial corrections to reference results for purely repulsive solutes. Hydrophobic bonds are weakened by adding solute dispersion forces to treatment of reference cases. The classic statistical mechanical theory for those corrections is not accurate in this application, but molecular quasi-chemical theory shows promise. Lastly, because of the masking roles of excluded volume and attractive interactions, comparisons that do not discriminate the different possibilities face an interpretive danger.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000; AC52-06NA25396
OSTI ID:
1259573
Alternate ID(s):
OSTI ID: 1263514
Report Number(s):
SAND-2016-6544J
Journal Information:
Journal of Physical Chemistry. B, Journal Name: Journal of Physical Chemistry. B Vol. 120 Journal Issue: 27; ISSN 1520-6106
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 24 works
Citation information provided by
Web of Science

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