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Determination of Long-Range Distances and Dynamic Order Parameters by Dipolar Recoupling in High-Resolution Magic-Angle Spinning NMR Spectroscopy

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons48862

Thieme,  K.
MPI for Polymer Research, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons48720

Schnell,  Ingo
MPI for Polymer Research, Max Planck Society;

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Zitation

Thieme, K., & Schnell, I. (2003). Determination of Long-Range Distances and Dynamic Order Parameters by Dipolar Recoupling in High-Resolution Magic-Angle Spinning NMR Spectroscopy. Journal of the American Chemical Society, 125(40), 12100-12101.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-6348-0
Zusammenfassung
By introducing dipolar recoupling methods to high-resolution magic-angle spinning (HRMAS) NMR spectroscopy, a class of experiments has been delevoped that allows the measurement of residual dipole-dipole couplings of ~1 Hz in weakly immobilized molecules. Using homonuclear 1H-1H recoupling, distances of up to ~8 Å can be selectively determined, while heteronuclear 1H-13C recoupling provides access to dynamic order parameters of individual molecular segments on the order of ~10-3. The experiments are demonstrated on functionalized oligopeptides that are attached to polymer resins.