1H-29Si DR mode, low range
29Si{1H} CP
sample: H-Beta (from Zhang Mozhi), 275C, 20 min 12C - 1.
MAS= 8kHz
ref to high field peak of Q8M8 at -109 ppm, sr = -426 Hz
1H 90 degree pulse 3.3 us, 76 kHz at 50 W, corresponding to 3 us at 60.5 W, optimized through 29Si CP
29Si CP 4.7 us, 53 kHz @ 86 W matched to 1H CP 4.2 us, 60 kHz @ 31.4 W. ramp.100 contact.
1H pulse and SPINAL64 decoupling at 3us. 83.3 kHz @ 60.5 W.