Dolbier HW Solutions 285

Dolbier HW Solutions 285 - CHAPTER 12 REACTIONS OF ARENES...

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279 CHAPTER 12 REACTIONS OF ARENES: ELECTROPHILIC AROMATIC SUBSTITUTION SOLUTIONS TO TEXT PROBLEMS 12.1 The three most stable resonance structures for cyclohexadienyl cation are The positive charge is shared equally by the three carbons indicated. Thus the two carbons ortho to the sp 3 -hybridized carbon and the one para to it each bear one third of a positive charge ( 1 0.33). None of the other carbons is charged. The resonance picture and the simple MO treatment agree with respect to the distribution of charge in cyclohexadienyl cation.
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