Vibrational Dynamics of the OH Stretching Mode of Water in Reverse Micelles Studied by Infrared Nonlinear Spectroscopy
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<jats:title>ABSTRACT</jats:title><jats:p>Vibrational dynamics of the OH stretching mode of water in the water pool of reverse micelles (H<jats:sub>2</jats:sub>O/Aerosol OT (AOT)/isooctane) are studied by nonlinear infrared spectroscopy such as transient grating method and three-pulse photon echo peak shift measurements. The W<jats:sub>0</jats:sub> value (W<jats:sub>0</jats:sub> =[H<jats:sub>2</jats:sub>O]/[AOT]) is changed from 2 to 40, which corresponds to a water pool diameter of a few nm to about 20 nm. Polarization dependent transient grating experiments show rapid anisotropy decay of the OH stretching mode, which could be due to resonant intra and intermolecular energy transfer. From the three-pulse photon echo peak shift experiments, the spectral diffusion is found to be dependent on W<jats:sub>0</jats:sub>.</jats:p>
収録刊行物
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- MRS Proceedings
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MRS Proceedings 790 2003-01-01
Springer Science and Business Media LLC
