Bruker BioSpin Solid State NMR, User Manual

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Proton Driven Spin Diffusion (PDSD)
User Manual Version 002 BRUKER BIOSPIN 145 (327)
Pulse Sequence Diagram 11.1
Figure 11.1. CPSPINDIFF Pulse Sequence
Basic Setup 11.2
1. On a standard sample (i.e. glycine) determine HH match and decoupling pa-
rameters.
2. Check the X 90° hard pulse with cp90 on the standard sample.
3. If the real sample does tune and match very differently than the setup sample,
verify the HH conditions briefly and eventually the X 90° hard pulse.
4. Set the spin rate as high as possible, make sure to avoid rotational resonance
conditions (overlap between center bands and sidebands), recheck the HH
condition. Set
cnst31 =spin rate.
5. Optimize contact time, o1 and o2 on a
13
C 1D CP experiment if necessary.
6. Create a new experiment with either iexpno or edc .
7. Change to a 2D data set.