Page 1 of 1

Urgent: Matching simulation with experimental data OH Radicals DMPO

Posted: Wed Jul 26, 2023 1:43 pm
by dbg0899

Dear EasySpin,

I have a problem with matching both simulation and experimental data for some of my data. The weird thing is that there are data which already is matched by its simulation. But, some of another data does not.

Why could be that? Thank you.

Here is the code:

[B,spc] = eprload(File);
disp(length(spc))
B = B/10;
g_offset = +0.00525;
Sys0.g=2.006 + g_offset;
Sys.S=1/2;
Sys0.Nucs = '14N,1H';
Sys0.A = [14.9 14.9]*2.802;
Sys0.lw = [0.07; 0.07];
Sys0.n = [1; 1];
%​
Exp.mwFreq = 9.464;
Exp.CenterSweep = [337 8];
%[x,y] = garlic(Sys0,Exp);
%plot(x, y)
Vary.g = 0.0025;
%Vary.A= 0,01;
Vary.lw = 0.03;
SimOpt.Method = 'perturb';
%
FitOpt.Scaling = 'lsq1';
FitOpt.Method = 'levmar int';
Exp.nPoints = length(B);
f = esfit('garlic',spc,Sys0,Vary,Exp,SimOpt,FitOpt);
%​
Sys = Sys0;
Sys.lw = f.lw;
Sys.g = f.g;


Re: Urgent: Matching simulation with experimental data OH Radicals DMPO

Posted: Sat Sep 02, 2023 11:34 pm
by Stefan Stoll

I am not sure what you are asking for, but it looks like the left-hand spectrum has an incorrect field or g offset, but the one on the right is spot on.