In 1,3,5-Cyclohexatriene, there are three >C=C< (double bond ) having bond
length 134 pm and
three C-C (single bond) having bond length 154 pm, whereas in benzene all the six C-C bonds have
same bond length 139 pm. Due to that fact 1,3,5-Cyclohexatriene give addition reaction while benzene does not. Thus
benzene is not same as 1, 3,5-cyclohexatriene.
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Showing posts with label AROMATIC COMPOUNDS. Show all posts
Showing posts with label AROMATIC COMPOUNDS. Show all posts
Thursday, February 6, 2020
Is Benzcne same as 1,3,5-Cyclohexatriene ?
More related Questions:
Nitrobenzene and not benzene, is used as a solvent for Fricdel Craft alkylation of bromobenzene. Why ?
Bromo
substituted benzene is preferentially more reactive than Nitro substituted
benzene hence it would preferentially undergo alkylation if il is used as a solvent.On the other hand, in nitrobenzene is so strongly deactivating that nitrobenzene
does not undergo Friedel Craft reaction.
Related Questions:
Is Benzene same as 1,3,5-Cyclohexatriene ?
Which halogen best delocalises electron density to benzene ring?
Nitrobenzene and not benzene, is used as a solvent for Friedel Craft alkylation of bromobenzene. Why ?
Why tetraalkylammonium ion ((CH3)4 N+) is neither an electrophile nor a nucleophile and H3O+ is not nucleophile but electrophile although it contains a lone pair of electrons.
Why does not carbon form C+4 or C-4 ions? Explain.
Which halogen best delocalises electron density to benzene ring ?
What is Lindlar’s catalyst and does Lindlar’s catalyst use ?
Fluorine is more electronegative than chlorine even then, p-flurobenzoic acid is weaker acid than p-chlorobenzoic acid explain ?
Related Questions:
Is Benzene same as 1,3,5-Cyclohexatriene ?
Which halogen best delocalises electron density to benzene ring?
Nitrobenzene and not benzene, is used as a solvent for Friedel Craft alkylation of bromobenzene. Why ?
Why tetraalkylammonium ion ((CH3)4 N+) is neither an electrophile nor a nucleophile and H3O+ is not nucleophile but electrophile although it contains a lone pair of electrons.
Why does not carbon form C+4 or C-4 ions? Explain.
Which halogen best delocalises electron density to benzene ring ?
What is Lindlar’s catalyst and does Lindlar’s catalyst use ?
Fluorine is more electronegative than chlorine even then, p-flurobenzoic acid is weaker acid than p-chlorobenzoic acid explain ?
Tuesday, January 28, 2020
How does it account for benzene's extraordinary stability ? Give an orbiial picture of benzene ?
The
ring is comprised of six sp2 hybridized carbon's each sigma bonded
to carbon’s and an H. (Fig-1) Each Carbon also has
a "p" AO with one electron : the AO's project above and below
the plane of the ring which is a nodal plane. Rather than form three localized
alternating doubic bonds (cycIohexatriene). these
"p" AO's overlap laterally to form an extended π-system in
which the electrons are symmetrically delocalized over all six carbon's making the
Carbon's equivalent . (Fig-2) Delocalization results in
less electron repulsion, greater stabilizalion, and lower energy.
Related Questions:
Is Benzene same as 1,3,5-Cyclohexatriene ?
Which halogen best delocalises electron density to benzene ring?
Nitrobenzene and not benzene, is used as a solvent for Friedel Craft alkylation of bromobenzene. Why ?
Why tetraalkylammonium ion ((CH3)4 N+) is neither an electrophile nor a nucleophile and H3O+ is not nucleophile but electrophile although it contains a lone pair of electrons.
Why does not carbon form C+4 or C-4 ions? Explain.
Which halogen best delocalises electron density to benzene ring ?
What is Lindlar’s catalyst and does Lindlar’s catalyst use ?
Fluorine is more electronegative than chlorine even then, p-flurobenzoic acid is weaker acid than p-chlorobenzoic acid explain ?
Is Benzene same as 1,3,5-Cyclohexatriene ?
Which halogen best delocalises electron density to benzene ring?
Nitrobenzene and not benzene, is used as a solvent for Friedel Craft alkylation of bromobenzene. Why ?
Why tetraalkylammonium ion ((CH3)4 N+) is neither an electrophile nor a nucleophile and H3O+ is not nucleophile but electrophile although it contains a lone pair of electrons.
Why does not carbon form C+4 or C-4 ions? Explain.
Which halogen best delocalises electron density to benzene ring ?
What is Lindlar’s catalyst and does Lindlar’s catalyst use ?
Fluorine is more electronegative than chlorine even then, p-flurobenzoic acid is weaker acid than p-chlorobenzoic acid explain ?
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