H NMR

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1 total messages Started by Houman Khalili Wed, 17 Jul 2002 22:38

#154

Author: Houman Khalili
Date: Wed, 17 Jul 2002 22:38

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For H NMR of 1,4-diphenyl-1,3-butadiene, there are two pairs of
doublet, each pair with two conspicuous side-bands. Why is that? I
would have thought that the two middle and the two outside vinylic
protons give only doublets!  I appreciate any suggestion.

Thanks alot

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