Shanxian Chemical
SUPPLEMENTS
Methanol Hydrogen Bond
Methanol can form hydrogen bonds because in methanol molecules, the hydrogen atom of the hydroxyl group (OH) is connected to the oxygen atom with a large electronegativity and a small radius. This hydrogen atom has a partial positive charge, while the oxygen atom of the hydroxyl group has a partial negative charge. When methanol molecules are close to each other, the hydrogen atom of the hydroxyl group of a methanol molecule and the oxygen atom of the hydroxyl group of another methanol molecule form a weak interaction force due to electrostatic attraction, that is, hydrogen bonds. Although the force of hydrogen bonds is weaker than that of chemical bonds, it has a significant impact on the physical and chemical properties of methanol. For example, if the boiling point of methanol is increased, the boiling point of methanol is significantly higher than that of hydrocarbons with similar molecular weights. Because of this hydrogen bond, the molecules are more closely bound and require more energy to become gaseous. And in terms of solubility, methanol can form hydrogen bonds with water, so it can be miscible with water in any ratio. This is the remarkable characteristic and influence of methanol hydrogen bonds.
Scan to WhatsApp
