TPPM Decoupling

TPPM Lineshape Dependence on RF Field Strength

****** The System *******
spectrometer(MHz)  500
spinning_freq(kHz) 15.625
channels           C13  H1
nuclei             C13  H1  H1  H1  H1
atomic_coords      ch4.cor
cs_isotropic       0.0 -0.3 0.5 0.5 0.2
csa_parameters     ch4.csa
j_coupling         *
quadrupole         *
dip_switchboard    *
csa_switchboard    *
exchange_nuclei    *
bond_len_nuclei    *
bond_ang_nuclei    *
tors_ang_nuclei    *
groups_nuclei      *
******* Pulse Sequence ******************************
CHN 1
timing(usec)      (8)256x200
power(kHz)         0
phase(deg)         0
freq_offs(kHz)     0
CHN 2         
timing(usec)      (4   4)
power(kHz)        125 125
phase(deg)         0   15
freq_offs(kHz)     0   0
****** Variables ************************************
spinning_freq=15.625
DW=40*(1000/spinning_freq)
scan_par R/4.5:0.25:5.25/
tc=(1000/spinning_freq)/R
pulse_1_1_1=tc
pulse_2_1_[1:2]=0.5*tc
power_2_1_[1:2]=1000/tc
gsize_1=round(DW/tc)
******************************************************
fig_title="TPPM Lineshape Dependence on RF Field Strength"
dim_2_name="$\omega_1/2\pi$"
dim_2_labels=R.mx*spinning_freq
dim_2_units="kHz"
******* Options **************************************
rho0               I1x
observables        F1p
EulerAngles        rep168
n_gamma            16
line_broaden(Hz)   6
zerofill           *
FFT_dimensions     1 Hz
options            -re -py

ch4.cor

* From N-Ac-VL crystal structure
4.541   7.765  -0.791  C12
5.159   8.444  -0.395  H13
3.318   6.293   0.000  H15
4.786   6.277   0.628  H16
4.761   6.257  -2.185  H9

ch4.csa

1 0  0  0.0  0.0   0.0
2 1  0  0.0  66.7  132.3
3 1  0  0.0  69.3  141.5
4 1  0  0.0  73.8  218.6
5 1  0  0.0  66.2  130.2