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Organic Chemistry

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2 Jul 2008 15:28:59 IST

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why benzene is more aromatic than napthalene&antracene

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why benzene is more aromatic than napthalene&antracene

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akshay A NEW BEGINNING...

Blazing goIITian

Joined: 25 Dec 2007

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3 Jul 2008 08:55:49 IST

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due to de localisation of pie electrons

i am not confirm wid my ans
correct me if wrong..

senthilnathan

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3 Jul 2008 12:39:57 IST

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the sablization energry of benzene is less compare to naphalene and anthracene.

vikram singh

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3 Jul 2008 12:46:56 IST

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may be beacuse benzene is completely planar while naphtalene n anthracene r not!!

pls correct me if i'm wrong!!

rakul singh

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3 Jul 2008 13:18:42 IST

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Napthalene is stabilised by resonance=61kcal/mole,benzene is stabilised by 36kcal/mole.When aromatic character of one ring of naphthalene is destroyed only 25 kcal of resonance energy is destroyed in next stage 36kcal is to be destroyed.Thats why oxidn. of naphthalne by V2O5 yields pthallic anhydride ie only one ring is oxidised.The large diff. in resonance energies and the presence of more deactivating rings in naphthalene & anthracene is d main reason.

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