Colloquium Speaker Michael D. Fayer (Stanford University) Tuesday, September 2, 2014 at 4:00 PM

[Patterson, Robin L.]

Please take note of Colloquium taking place today, Tuesday, September 2, 2014 at 4:00 PM in The Robert Smith Seminar Room. There will be a reception in the Atrium at 3:45PM. Details concerning the talk are as follows:

Speaker:              Michael D. Fayer (Stanford University)
Date:                     Tuesday, September 2, 2014
Time:                     4:00 PM
Place:                    1080 Physics Research Building, The Robert Smith Seminar Room
Title:                     Water Dynamics in Nanoconfined Systems


Abstract: The results of ultrafast infrared experiments that shed light on the influences of nanoconfinement, interfaces, and ions on water hydrogen bond dynamics are presented.  In such situations, water does not behave in the same manner as it does in the pure bulk liquid.  2D IR vibrational echo experiments and IR polarization selective pump-probe experiments are used to directly probe water dynamics.  The results of experiments on water interacting with charged and neutral interfaces are presents as well as experiments in which water interacts with ions.  It is found that water interacting with interfaces slows hydrogen bond dynamics but the presence of the interface is more important than the chemical nature of the interface.  The exchange of water hydrogen bonds between ions and other water molecules is slower than in bulk water, but only by a factor of three or four.

The website for the colloquium is https://physics.osu.edu/physics-colloquium-schedule.



Robin
[The Ohio State University]
Robin Patterson
Colloquium and Seminar Coordinator
Department of Physics
1040K Physics Research Building, 191 W. Woodruff Avenue, Columbus, OH 43210
(614) 292-8523 Office     (614) 292-7557 Fax
patterson.716 at osu.edu<mailto:patterson.716 at osu.edu> osu.edu<http://osu.edu/>



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