Bruker BioSpin Solid State NMR - Page 148

148 (327) BRUKER BIOSPIN User Manual Version 002
Proton Driven Spin Diffusion (PDSD)
Table 11.1. Acquisition Parameters
Parameter Value Comments
PULPROG cpspindiff (old: cpnoesy) Pulse program.
NUC1
13
C Set
13
C in both F2 and F1 column.
SW 250 ppm To be optimized.
O1P 120 ppm To be optimized.
NUC2
1
H For CP/decoupling only.
O2P 3 ppm To be optimized for dec.
PL1 For
13
C contact.
PL11 For
13
C flip pulses.
PL12 For
1
H excitation and decoupling.
PL14 for n*spin rate (DARR) or 120 Recoupling.
SP0 For
1
H contact using shape.
SPNAM0 ramp.100 or ramp70100.100 For
1
H-
13
C contact.
CPDPRG2 SPINAL64 At PL12.
P1
13
C excitation (flip) pulse.
P3
1
H excitation pulse.
P15
13
C-
1
H Contact pulse.
PCPD2 Decoupling pulse for spinal64.
D1 Relaxation delay.
D8 5-500 msec Depending on sample.
CNST31 MAS speed Used to calculate d31 (rotation period).
L1 calculated from cnst31 and d8 Number of rotor cycles for mixing time.
AQ_MOD DQD
TD {F1} 512 Number of points.
SW{F1} usually = SW =MASR if possible.
NUC1{F1} =NUC1
TD {F2} 128 Number of points.
ND0 1 Not required in TopSpin 2.1.
NS 4*n
FnMode TPPI/States/States-TPPI