Coherence-level diagram

Figure 2.4. An example of a coherence level diagram for a 3Q experiment with symmetrised...

Appendix 6 Product-Operator Formalism and Coherence-Level Diagrams 323... 

Figure A6-5 Coherence-level diagram for the inversion recovery experiment.

Finally, let us reexamine the 2D INADEQUATE experiment (Section 6-4) in terms of its coherence-level diagram (Figure A6-9). This experiment utilizes pulses only at the frequency of the insensitive nucleus, such as C. The initial 90° pulse generates single quantum coherence, and the periods t are selected to produce an antiphase disposition of " C nuclei with C coupling partners. The center-band signal from C nuclei lacking adjacent... 

Fig. 24. Shifted-echo split- i pulse sequences for (a) STMAS and for (b) SCAM-STMAS which compensates for a mis-set in the magic angle. Also shown are the coherence level diagrams along with an indication of which transition, satellite transition (ST) or central transition (CT), is being tracked by the pulses. The phase-cycle list, (/>i,2,3,(/>4, and (/>rec is given in Table 5e.

Figure 5 JO. The coherence level diagram for a single-pulse ID experiment. The solid line represents the coherence transfer pathway of the detected magnetisation. The dotted line represents the mirror image pathway that is rejected by the quadrature detection scheme.

Figure 5 Jl. The coherence level diagrams and coherence transfer pathways for (a) P-type, (b) N-type and (c) phase-sensitive COSY.

Figure 16 Coherence level diagram for the COSY sequence. The symbols N and P designate the N and P pathways.

---