Spin density description of rotational-echo double-resonance, transferred-echo double-resonance and two-dimensional transferred-echo double-resonance solid state nuclear magnetic resonance.
The spin d. matrix formalism has been applied to rotational-echo double-resonance (REDOR), transferred-echo double-resonance (TEDOR) and 2-dimensional (2D) TEDOR expts. 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 expt. 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 obsd.
Dieser Eintrag ist freigegeben.