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SUMMARY:Theoretical advances in aqueous ion solvation: Charge asymmetry - 
 Dr Stephen J. Cox - University of California\, Berkeley\, College of Chemi
 stry
DTSTART:20160603T110000Z
DTEND:20160603T114000Z
UID:TALK65671@talks.cam.ac.uk
CONTACT:Lisa Masters
DESCRIPTION:The solvation of ions in water plays an important role in nume
 rous processes\, such as the denaturing of proteins\, electrochemical reac
 tions and desalination. Despite being studied extensively for more than a 
 century\, even the simplest process — the solvation of a small spherical
  ion in water — is still a challenge for theory. For example\, it is obs
 erved empirically that anions tend to be solvated much more favorably than
  cations of a similar size\, a phenomenon that is not captured by standard
  dielectric continuum theories (DCT). In this talk\, I will show that a su
 itably constrained quadrupole field (in addition to the dipole field that 
 is usually modeled by DCT) can lead to a simple theory resembling the Born
  model that accurately describes aqueous ion solvation.
LOCATION:Unilever Lecture Theatre\, Department of Chemistry
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