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5.1.3 1,4-Benzosemiquinone anion radical [a003]

In this molecule, the unpaired electron dislocates on all the ring and the coupling with the four protons is the same.

\begin{figure}\centerline{\psfig{figure=a003.ps,width=4.0cm}} % \end{figure}

Figure 6: EPR spectrum of the 1,4-benzosemiquinone anion radical.
\begin{figure}\centerline{\psfig{figure=a003esp.ps,width=16.0cm}} \end{figure}

[Exercise] Measure the intensities in the simulator and fill out the rows corresponding to the spectrum [a003] in the Intensities Table 1 that you printed in the section 5.1.1.



Simulator


Next we have four examples similar to those previously studied but with 5, 6, 7 and 8 equivalent nuclei. You can jump the three following examples if you feel that you have properly assimilated the previous spectra. Later on, you can study by yourself the jumped examples.

Jump to the subsection 5.1.7. (consult with your professor)

next up previous contents
Next: 5.1.4 Cyclopentadienyl neutral radical Up: 5.1 Radicals containing n Previous: 5.1.2 Methyl neutral radical   Contents
Universidad Autónoma de Madrid, Departamento de Química Física Aplicada