Urgent: Matching simulation with experimental data OH Radicals DMPO

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dbg0899
Newbie
Posts: 2
Joined: Wed Jul 26, 2023 1:37 pm

Urgent: Matching simulation with experimental data OH Radicals DMPO

Post 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;

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Stefan Stoll
EasySpin Creator
Posts: 1050
Joined: Mon Jul 21, 2014 10:11 pm
Location: University of Washington

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

Post 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.

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