How does the oxygen bonding in ethers differ from the oxygen bonding in alcohols?

The primary difference in oxygen bonding between alcohols and ethers lies in the atoms attached to the oxygen.1

• Alcohols: These compounds contain a hydroxyl group (―OH), where the oxygen atom is bonded to one carbon atom and one hydrogen atom. The presence of this strongly polarized O―H bond allows alcohol molecules to engage in hydrogen bonding with one another, which significantly influences their physical properties, such as higher boiling points.2314
• Ethers: In ethers, the oxygen atom is bonded to two carbon-based groups (alkyl or aryl groups), with no hydrogen atom directly attached to the oxygen. Because they lack the polarized O―H bond, ether molecules cannot form hydrogen bonds with each other.1

While both classes of compounds possess nonbonding electron pairs on their oxygen atoms—allowing them to form hydrogen bonds with other molecules that contain O―H or N―H bonds—the absence of the hydroxyl group in ethers results in distinct differences in solubility, density, and boiling points compared to alcohols.1