Nonlinear response of vibrational excitons: Simulating the two-dimensional infrared spectrum of liquid water
نویسندگان
چکیده
منابع مشابه
Nonlinear response of vibrational excitons: simulating the two-dimensional infrared spectrum of liquid water.
A simulation formalism for the nonlinear response of vibrational excitons is presented and applied to the OH stretching vibrations of neat liquid H(2)O. The method employs numerical integration of the Schrodinger equation and allows explicit treatment of fluctuating transition frequencies, vibrational couplings, dipole moments, and the anharmonicities of all these quantities, as well as nonadia...
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15 صفحه اولTemperature dependence of the two-dimensional infrared spectrum of liquid H2O.
Two-dimensional infrared photon-echo measurements of the OH stretching vibration in liquid H2O are performed at various temperatures. Spectral diffusion and resonant energy transfer occur on a time scale much shorter than the average hydrogen bond lifetime of approximately 1 ps. Room temperature measurements show a loss of frequency and, thus, structural correlations on a 50-fs time scale. Weak...
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ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2009
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.3139003