Chemical Exchange (using 2-site permutation model)

  Chemical exchange simulation (2-site permutation model)
****** The System *******
spectrometer(MHz)  400
spinning_freq(kHz) *
channels           H1
nuclei             H1 H1
atomic_coords      *
cs_isotropic       1 -1
csa_parameters     *
j_coupling         *
quadrupole         *
dip_switchboard    *
csa_switchboard    *
exchange_nuclei    (1 2)
bond_len_nuclei    *
bond_ang_nuclei    *
tors_ang_nuclei    *
groups_nuclei      *
******* Pulse Sequence ******************************
CHN 1
timing(usec)       (100)1024
power(kHz)          0
phase(deg)          0
freq_offs(kHz)      0
******* Variables ***********************************
scan_par a/4 2 1 0.707 0.5 0.2/
k_1=pi/a
*normalize the signal by the height of the a=0.2 peak:
pdata_re=pdata_re/pdata_re(512,6)
******* Options *************************************
rho0               F1x
observables        F1p
EulerAngles        *
n_gamma            *
line_broaden(Hz)   *
zerofill           *
FFT_dimensions     1
options            -re
******************************************************
-- See also exch-analyt