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From the same journal

Macroscopic Nuclear Spin Diffusion Constants of Rotating Polycrystalline Solids from First-Principles Simulation

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Publication details

JournalJournal of Magnetic Resonance
DateE-pub ahead of print - 7 Mar 2015
DatePublished (current) - May 2015
Number of pages8
Pages (from-to)48-55
Early online date7/03/15
Original languageEnglish


A method for quantitatively calculating nuclear spin diffusion constants directly from crystal structures is introduced. This approach uses the first-principles low-order correlations in Liouville space (LCL) method to simulate spin diffusion in a box, starting from atomic geometry and including both MAS and powder averaging. The LCL simulations are fit to the 3D diffusion equation to extract quantitative nuclear spin diffusion constants. We demonstrate this method for the case of 1H spin diffusion in ice and l-histidine, obtaining diffusion constants that are consistent with literature values for 1H spin diffusion in polymers and that follow the expected trends with respect to magic-angle spinning rate and the density of nuclear spins. In addition, we show that this method can be used to model 13C spin diffusion in diamond and therefore has the potential to provide insight into applications such as the transport of polarization in non-protonated systems.

    Research areas

  • Solid-state NMR, Low-order correlations in Liouville space (LCL), Polarisation transport, Numerical simulation

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