Two-dimensional infrared spectroscopy of neat ice Ih
نویسندگان
چکیده
منابع مشابه
Two-dimensional infrared spectroscopy of neat ice Ih.
The OH stretch line shape of ice Ih exhibits distinct peaks, the assignment of which remains controversial. We address this longstanding question using two dimensional infrared (2D IR) spectroscopy of the OH stretch of H(2)O and the OD stretch of D(2)O of ice Ih at T = 80 K. The isotropic response is dominated by a 2D line shape component which does not depend on the pump pulse frequency. The d...
متن کاملTwo-dimensional infrared spectroscopy of neat ice Ih
The assignment of the distinct peaks observed in the OH stretch lineshape of ice Ih is controversial. Recent two-dimensional infrared spectroscopic measurements provided new data. The spectra are, however, challenging to interpret and here we provide simulations that help overcome experimental issues as thermal signals and finite pulse duration. We find good agreement with experiment and the di...
متن کاملTwo - dimensional infrared spectroscopy of neat ice
The OH stretch line shape of ice Ih exhibits distinct peaks, the assignment of which remains controversial. We address this longstanding question using two dimensional infrared (2D IR) spectroscopy of the OH stretch of H2O and the OD stretch of D2O of ice Ih at T=80 K. The isotropic response is dominated by a 2D line shape component which does not depend on the pump pulse frequency. The decay t...
متن کاملTwo-dimensional infrared spectroscopy of isotope-diluted ice Ih.
We present experimental 2D IR spectra of isotope diluted ice Ih (i.e., the OH stretch mode of HOD in D(2)O and the OD stretch mode of HOD in H(2)O) at T = 80 K. The main spectral features are the extremely broad 1-2 excited state transition, much broader than the corresponding 0-1 groundstate transition, as well as the presence of quantum beats. We do not observe any inhomogeneous broadening th...
متن کاملThree-dimensional infrared spectroscopy of isotope-diluted ice Ih.
Using three-dimensional infrared (3D-IR) spectroscopy, we investigate the vibrational dynamics of isotope-diluted ice Ih. By probing the OD stretch mode of HOD in H2O, we observe an extremely rapid decay (≈200 fs) of the population from the second vibrational excited state. Quantum simulations based on a two-dimensional Lippincott-Schroeder potential agree nearly quantitatively with the experim...
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ژورنال
عنوان ژورنال: Physical Chemistry Chemical Physics
سال: 2016
ISSN: 1463-9076,1463-9084
DOI: 10.1039/c5cp07264f