30 May 2001 Ultrafast IR spectroscopy of hydrogen-bonded alcohol dimers in the liquid phase
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Proceedings Volume 4429, International Seminar on Novel Trends in Nonlinear Laser Spectroscopy and High-Precision Measurements in Optics; (2001) https://doi.org/10.1117/12.428339
Event: International Seminar on Novel Trends in Nonlinear Laser Spectroscopy and High-Precision Measurements in Optics, 2000, Vladimir/Suzdal, Russian Federation
Abstract
The stretching mode of OH-groups with proton donor function of an alcohol associating to open hydrogen-bonded dimers is investigated in the liquid phase. Spectral holes with frequency spacing of approximately equals 35 cm-1 in the fundamental OH-transition and of approximately equals 45 cm-1 in the excited state-absorption are determined. This gives strong evidence for combination tones with the bending vibration of the hydrogen bridge bond governing the dynamics and the shape of the proton donor OH-stretching band. The combination modes display additional relaxation channels for the excited OH-stretching mode resulting in a lifetime shortening from 8 ps (monomer) down to 3.6 ps (proton donor, 260 K).
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Konstantinos Simeonidis, Konstantinos Simeonidis, Robert Laenen, Robert Laenen, } "Ultrafast IR spectroscopy of hydrogen-bonded alcohol dimers in the liquid phase", Proc. SPIE 4429, International Seminar on Novel Trends in Nonlinear Laser Spectroscopy and High-Precision Measurements in Optics, (30 May 2001); doi: 10.1117/12.428339; https://doi.org/10.1117/12.428339
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