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ANALYSIS OF ELECTRON PARAMAGNETIC RESONANCE SPECTRA
Contents
1 Beginning
1.1 Use of the EPR simulator
2 Objectives
3 Theoretical basis. Spectrum of a free electron
4 Organic Radicals
5 Radical Spectra with a single hyperfine splitting
5.1 Radicals containing n equivalent nuclei with I = 1/2
5.1.1 Hydroxymethyl neutral radical [a001]
5.1.2 Methyl neutral radical [a002]
5.1.3 1,4-Benzosemiquinone anion radical [a003]
5.1.4 Cyclopentadienyl neutral radical [a004]
5.1.5 Benzene anion radical[a005]
5.1.6 Cycloheptatrienyl neutral radical [a006]
5.1.7 Cyclooctatetraene anion radical [a007]
5.2 Radicals that contain n equivalent nuclei with I = 1
5.2.1 Di-tert-butyl nitroxide neutral radical [a008]
5.2.2 Substituted nitronyl nitroxide neutral radical [a009]
5.2.3 Tetracyanoethene anion radical [a010]
6 Radical spectra with multiple hyperfine splittings
7 Basic Rules for the interpretation of EPR spectra
8 Spectra of Organic Radicals
8.1 Radicals containing
r
groups of equivalent nuclei with spin I = 1/2
8.1.1 Butadiene anion radical [a013]
8.1.2 5-methyl-2-hydroxyphenol cation radical [a018]
8.1.3
-hydroxy ethanoic acid (glycolic acid) neutral radical [a011]
8.1.4 Hydroxymethyl neutral radical [a012]
8.1.5 Biphenylene anion radical [a014]
8.1.6 4,4'-fluorobiphenyl cation radical [a015]
8.1.7 Ethyl neutral radical [a016]
8.1.8 Isopropyl neutral radical [a017]
8.1.9 Anthracene anion radical [a019]
8.1.10 Biphenyl anion radical [a020]
8.1.11 Benzyl neutral radical [a021]
8.2 Radicals containing
r
groups of equivalent nuclei with different values of I
8.2.1 2,6-di-tert-butyl 4-amino-phenoxyl neutral radical [a024]
8.2.2 Di-nitro methane anion radical [a022]
8.2.3 1,4-di-deuterio benzene anion radical [a023]
8.2.4 Bis (tri-fluoro methyl) semidiazoxide anion radical [a025]
8.2.5 Diethyl amine cation radical [a026]
8.2.6 Mono-deuterium diethyl amine cation radical [a027]
8.2.7 1,4-dihydro pyrazine cation radical [a028]
8.2.8
Rb(I) complex with 1,2-benzosemiquinone anion radical [a029]
8.2.9
Cs(I) complex with 2,3-di-tert-butyl 1,3-diene anion radical [a030]
8.2.10 Rb(I) complex with 2,3-di-tert-butyl 1,3-diene anion radical [a032] and [a033]
8.2.11 Nitrobenzene anion radical [a031]
A. Peak to peak linewidth (DHpp)
B. Second-order Splitting
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Universidad Autónoma de Madrid, Departamento de Química Física Aplicada
-hydroxy ethanoic acid (glycolic acid) neutral radical [a011]
Rb(I) complex with 1,2-benzosemiquinone anion radical [a029]
Cs(I) complex with 2,3-di-tert-butyl 1,3-diene anion radical [a030]