Unravelling local and collective dynamics associated with hydrogen bonding network in the liquid state of propanol-glycerol mixtures
Mono-alcohols have been studied using a variety of methods for a very long time, and they have demonstrated a strong Debye and alpha relaxation. Here we aim to investigate the dynamics of the H-bond in propanol-glycerol mixtures. We deuterate the sample in order to study the dynamics of the carbon backbone vs. hydrogen bond network since neutrons have a contrast in the density of their scattering lengths for different elements. By creating two different types of samples, one with deuterated combination (propanol-glycerol), and the other entirely protonated, separation can be accomplished. The ultimate goal is to separate coherent and incoherent QENS signals from overall scattering to better comprehend observed relaxation processes. As recently Arbe et al. have measured coherent and incoherent dynamic structure factors of heavy water with sub-meV resolution. We wish to apply a similar tactic in the case of propanol and propanol-glycerol mixtures. In present case, we want to focus on slower dynamics up to several nanoseconds with IN16B and WASP, whereas polarization spectroscopy is possible for fast dynamics with contemporary spectrometers like LET.
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The recommended format for citing this dataset in a research publication is in the following format:
TIWARI Anand kumar; APPEL Markus; FARAGO Bela and Kristine Niss. (2024). Unravelling local and collective dynamics associated with hydrogen bonding network in the liquid state of propanol-glycerol mixtures. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.6-02-662
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