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- W3207919348 abstract "We present a model to explain the mechanism behind enantiomeric separation under either shear flow or local rotational motion in a fluid. Local vorticity of the fluid imparts molecular rotation that couples to translational motion, sending enantiomers in opposite directions. Translation-rotation coupling of enantiomers is explored using the molecular hydrodynamic resistance tensor, and a molecular equivalent of the pitch of a screw is introduced to describe the degree of translation-rotation coupling. Molecular pitch is a structural feature of the molecules and can be easily computed, allowing rapid estimation of the pitch of 85 druglike molecules. Simulations of model enantiomers in a range of fluids such as Λ- and Δ-[Ru(bpy)3]Cl2 in water and (R, R)- and (S, S)-atorvastatin in methanol support predictions made using molecular pitch values. A competition model and continuum drift-diffusion equations are developed to predict separation of realistic racemic mixtures. We find that enantiomeric separation on a centimeter length scale can be achieved in hours, using experimentally achievable vorticities. Additionally, we find that certain achiral objects can also exhibit a nonzero molecular pitch." @default.
- W3207919348 created "2021-10-25" @default.
- W3207919348 creator A5018502317 @default.
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- W3207919348 date "2021-10-15" @default.
- W3207919348 modified "2023-10-13" @default.
- W3207919348 title "Separation of Enantiomers through Local Vorticity: A Screw Model Mechanism" @default.
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- W3207919348 doi "https://doi.org/10.1021/acs.jpcb.1c07127" @default.
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