Why 9 10 position of phenanthrene is more reactive towards electrophilic substitution reaction?
Answers
Lets start with resonance energy:
Resonance energy of benzene = 36 kcal mol-1
Resonance energy of the 2 ring system naphthalene = 61 kcal mol-1 (or 30.5/ring)
Resonance energy of the 3 ring systel anthracene = 84 kcal mol-1 (or 28/ring)
In the oxidation of anthracene forming anthraquinone you would leave 2 separate benzene rings intact (at first approximation this would give 72 kcal mol-1 of resonance energy. )
Hope this answers your question.
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❤Answer❤
Lets start with resonance energy:
Resonance energy of benzene = 36 kcal mol-1
Resonance energy of the 2 ring system naphthalene = 61 kcal mol-1 (or 30.5/ring)
Resonance energy of the 3 ring systel anthracene = 84 kcal mol-1 (or 28/ring)
In the oxidation of anthracene forming anthraquinone you would leave 2 separate benzene rings intact (at first approximation this would give 72 kcal mol-1 of resonance energy. )