In methoxymethane, the lone pairs on the oxygen are still there, but the hydrogens aren't sufficiently δ+ for hydrogen bonds to form. Except in some rather unusual cases, the hydrogen atom has to be attached directly to the very electronegative element for hydrogen bonding to occur.
What intermolecular forces are present in methoxymethane?
The C-O bonds of methoxymethane (dimethyl ether) (CH3-O-CH3) are polar. The geometry of the molecule is angular, resulting in an overall molecular dipole. Hence the molecule will be subject to dipole-dipole and dipole/induced dipole interactions as well as the stronger dispersion forces.
Does methoxymethane have dipole-dipole?
Methoxymethane is a slightly polar molecule, with a partial negative charge on the oxygen. ... The boiling point of ethanol is much higher than methoxymethane, as ethanol is able to form hydrogen bonds, whereas methoxymethane has rather weaker dipole-dipole interactions.
