Sunday, December 4, 2011

Ether group

The ether functional group is characterized by the presence of an oxygen atom shared by two carbons (can be alkyl or aryl groups). It is therefore a functional group that appears in an internal position within the molecules. Its general formula is C1-O-C2.
The C-O-C bond angle has about 104.5 °, with a bonding distance of 140pm. The ether group is a polar functional group, because the COC bond angle is not 180°, which impairs the molecule dipoles to cancel each other. Although it cannot function as an H donor in hydrogen bonds, it can function as an acceptor of them.

In biochemistry, the ether groups are present, for example, in the O-glycosidic bonds.

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