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The c oc bond angle i …

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The c oc bond angle i dimethl ether is 111.7 degree why ?
  • 1 answers

Sahdev Sharma 8 years, 4 months ago

Oxygen atom in ether is sp3 hybridised, therefore C-O-C bond angle should be 109o28'. but it is slightly more than this i.e nearly 110o.

Reason: There are 2 lone pairs of electrons on O atom that must repel each other and should result in bond contraction. but presence of alkyl group on O atom counterbalance the repulsion of lone pair on O atom and bond pair and leads to bond angle greater than tetrahedral angle of 109o28'.

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