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Off-resonance proton-decoupling in overtone NMR spectroscopy of solids by Dong-Kuk Lee; A Ramamoorthy is a Physics and Astronomy article available to read on EtoBox.

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An off-resonance proton-decoupling method is presented for the measurement of H-N dipolar couplings in 14 N-overtone NMR spectroscopy of solids. This one-dimensional method employs magic-angle radio-frequency irradiation of protons in order to suppress the 1 H-1 H dipole interactions during the 14 N-overtone signal acquisition. The one-dimensional dipolarovertone-shift spectrum obtained allows the direct measurement of N-H dipolar couplings for the structure determination of single crystalline or uniaxially oriented peptides. Results are presented from experiments on a single crystal sample of N-acetyl-D,L-valine. The proposed method is easy to implement experimentally and the results are simple to interpret. This experiment is less time-consuming and therefore useful for the study of biological solids as compared to two-dimensional separated-local-field methods. q 1998 Elsevier Science B.V.

Who reads Off-resonance proton-decoupling in overtone NMR spectroscopy of solids?

Author

Dong-Kuk Lee; A Ramamoorthy

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0009-2614)

Published

1998

Language

EN

Field

Physics and Astronomy (Physical Sciences)