Molecular dynamics calculations have been carried out for a model of liquid acetonitrile. Results are reported for correlation functions appropriate to infrared, Raman and N.M.R. measurements, and very good agreement with experiment is found. Both the tumbling and the spinning motion of the ...
In an article published this week inAPL Materials, by AIP Publishing, Luan and his collaborators tested a molecular energy harvesting device that captures the energy from the natural motion of molecules in a liquid. Their work showed molecular motion can be used to generate a stable electric curr...
Dynamic molecular motions of ferroelectric liquid crystalline polymer are investigated by time resolved FT-IR technique. The absorbance of main chain and that of the mesogenic moiety synchronously change. This suggests the reason the electro-optical response of ferroelectric liquid crystalline polymers is...
Therefore, when studying atom velocities and co-ordinates, the finite difference method is usually employed to derive equations of motion [54]. In recent years, such simulations have been used to study vapor-liquid phase changes at the atomic level. Yamamoto and Matsumoto investigated bubble ...
The result in the finite-temperature-difference scenario can be attributed to the weakened pining effect caused by vigorous evaporation in the vicinity of the contact line as well as the decreased liquid–vapor interfacial tension (or increased spreading coefficient) arising from the elevated interface...
A. Biomolecular condensates at the nexus of cellular stress, protein aggregation disease and ageing. Nat. Rev. Mol. Cell Biol. 22, 196–213 (2021). CAS PubMed Google Scholar Shin, Y. & Brangwynne, C. P. Liquid phase condensation in cell physiology and disease. Science 357, eaaf4382 (...
Fig. 7: Crown ether shuttling motion. Shuttling behavior of 7Pr·HPF6 upon acid or base treatments. Full size image While the neutralization of a crown ether-based rotaxane featuring a tertiary ammonium group is easily achievable, the same does not hold true for the species bearing secondary-...
Molecular distillation is a special liquid-liquid separation technique. It differs from traditional distillation by the principle of separation of boiling points, but by the difference in the mean free path of molecular motion of different substances. Us...
Efficient mixing between the liquid phase and gas phase is difficult to achieve; therefore, reactions are often mass transfer limited, which leads to problems when scaling up from laboratory to manufacturing scale. The solubility of O2 in water and organic solvents is poor, thus the reactor ...
The Rotational Motion of Molecules in Crystals It is shown by the discussion of the wave equation for a diatomic molecule in a crystal that the motion of the molecule in its dependence on the polar angles 胃 and 蠁 may approach either one of two limiting cases, oscillation and rotati... ...