Questions tagged [epr-spectroscopy]
This tag should be applied to questions concerning all aspects of electron paramagnetic resonance (EPR) spectroscopy, including the theory behind the technique and its applications in chemistry.
21
questions
1
vote
0
answers
31
views
Handling EPR spin-probes, specifically how to dissolve 5-DSA?
I want to do some EPR tests with 5-DSA (or related spin probe) dissolved into different crude oils.
It had not sunk into me that $100 of 5-DSA was a tiny amount of a very sticky solid. It's proving ...
4
votes
0
answers
91
views
EPR or NMR sample that will give narrow lines at 4 K
We have made a crossed coil setup (X and Y transmit/receiving coils) with a SQUID pick up loop along Z. I have built a similar CW NMR spectrometer with inductive pickup that can detect Teflon NMR with ...
2
votes
0
answers
43
views
How to calculate the magnetic exchange coupling in a charged radical complex?
I have a neutral complex with two magnetic centers. For this case it is easy to calculate the exchange coupling as the broken symmetry state is converged properly. But when I am making the complex ...
17
votes
1
answer
346
views
Directionality of ring current-induced magnetic fields in purines
What would be the directions of ring current-induced magnetic fields in purine-like heterocycles in a strong magnetic field?
Would be the antiparallel state be a default state for these substances in ...
7
votes
1
answer
598
views
Can one figure out an optical absorption spectrum from EPR data?
I'm wondering if it's worthwhile for me as an optical spectroscopist to read up a bit on EPR. Do EPR signals reveal where, in terms of wavelength, features in the optical spectrum can be expected to ...
4
votes
1
answer
767
views
Factors to consider to predict EPR
What are the factors to consider when predicting the EPR spectrum of $\ce{Cu(Ox)P(CH3)3}$ where $\ce{OX}$ is the oxalate ion?
I understand that there are several factors to consider for EPR (Electron ...