Abstract
The spin density matrix formalism has been applied to rotational-echo double-resonance (REDOR), transferred-echo double-resonance (TEDOR) and two-dimensional (2D) TEDOR experiments in order to obtain an expression for the signal intensities. TEDOR spectra of 15N-labeled glycine were measured with different dipolar evolution times. 2D-TEDOR spectra were measured of doubly labeled glycine-2- 13C, 15N and of 15N-labeled glycine. Both the TEDOR and the 2D-TEDOR spectra were readily obtained although the 2D-TEDOR experiment on 15N-labeled glycine used a lot of machine time. Even though the 15N-1- 13C dipolar coupling is relatively small (200 Hz), the 1-C resonance can still be observed.
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