Benzene and Alkyl Benzene - Result Question 43
47. Give reason for the following ‘In acylium ion the structure $R-C \equiv O^{+}$is more stable than $R-C^{+}=O^{\prime}$
$(1994,1 M)$
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Solution:
$R-C \equiv \stackrel{+}{O} \longleftrightarrow R-\stackrel{+}{C}=O$
$ \hspace{7mm} I \hspace{20mm} II $
I is more stable resonance structure of acylium ion than
II on the following grounds.
It has more covalent bonds.
It has complete octet of both carbon and oxygen.
BETA
