How can ethers form hydrogen bonds with alcohols and amines?

Ethers are able to form hydrogen bonds with alcohols and amines because of the presence of nonbonding electron pairs on their oxygen atoms.1

While ether molecules cannot engage in hydrogen bonding with each other because they lack the strongly polarized O–H bonds found in alcohols, their oxygen atoms act as hydrogen bond acceptors. When an ether is mixed with a compound containing an O–H bond (such as an alcohol) or an N–H bond (such as an amine), the electron-rich oxygen atom of the ether interacts with the slightly positively charged hydrogen atom of the alcohol or amine. This electrostatic attraction forms a hydrogen bond, which contributes to the effectiveness of ethers as solvents for a wide variety of organic and inorganic compounds.12