Equivalent protons in benzene Watch

mp_x
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I don't understand why the hydrogens attached to the benzene ring in ethylbenzene for example are equivalent/in the same proton environment. Could someone explain please?
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alow
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(Original post by mp_x)
I don't understand why the hydrogens attached to the benzene ring in ethylbenzene for example are equivalent/in the same proton environment. Could someone explain please?
Not all of the [aromatic] protons in ethylbenzene are in the same environment. There will be 3 environments.
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mp_x
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(Original post by alow)
Not all of the protons in ethylbenzene are in the same environment. There will be 3 environments.
I'm talking about the aromatic environments, why is there only 1? I count 3 when I do it
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alow
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(Original post by mp_x)
I'm talking about the aromatic environments, why is there only 1? I count 3 when I do it
That's what I meant. 3 aromatic environments.
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mp_x
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(Original post by alow)
That's what I meant. 3 aromatic environments.
https://www.google.co.uk/search?q=et...EE82jXmVVBM%3A
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alow
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That is incredibly low res.

http://chem.ch.huji.ac.il/nmr/whatis...iles/ebexp.jpg
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mp_x
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Even in that picture, the aromatic part is just one huge peak? Shouldn't it be 3 separate ones.

Sorry, it's just that the textbook also says 3 peaks in total (with 1 aromatic peak) which has really confused me.
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alow
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(Original post by mp_x)
Even in that picture, the aromatic part is just one huge peak? Shouldn't it be 3 separate ones.

Sorry, it's just that the textbook also says 3 peaks in total (with 1 aromatic peak) which has really confused me.
No it isn't... the ortho, meta and para protons peaks are labelled on the diagram.

Your textbook is wrong.
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