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Mar
Hydrogen Bonds. With bond strengths generally covering the range of 5 50 kJmol the energy required to break a hydrogen bond is comparable to that of thermal motion within the temperature range of 0 200 C. A hydrogen bond is the electromagnetic attraction between polar molecules in which hydrogen is bound to a larger atom such as oxygen or nitrogen. Hydrogen bonds are primarily categorized as intermolecular occurring between separate molecules or intramolecular occurring among parts of the same molecule. Water as a perfect example of hydrogen bonding.
If you liken the covalent bond between the oxygen and hydrogen to a stable marriage the hydrogen bond has just good friends status. In the case of water hydrogen bonding which is a special case of polar dipole forces exerts a very strong effect to keep the molecules in a liquid state until a fairly high temperature is reached. Hydrogen bonds always form between hydrogen and an electronegative atom. A hydrogen bond is the interaction of a hydrogen atom with an electronegative atom such as nitrogen oxygen or fluorine from another molecule. It results from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N O or F atom and another very electronegative atom. Such a bond is weaker than an ionic bond or covalent bond but stronger than van der Waals forces.
A hydrogen bond is an attraction between two atoms that already participate in other chemical bonds.
Hydrogen bonding interaction involving a hydrogen atom located between a pair of other atoms having a high affinity for electrons. Hydrogen Bond Definition Hydrogen bond is an attractive force between a partially positive charged hydrogen and a partially negative charged atom oxygen and nitrogen. A hydrogen bond is an intermolecular force IMF that forms a special type of dipole-dipole attraction when a hydrogen atom bonded to a strongly electronegative atom exists in the vicinity of another electronegative atom with a lone pair of electrons. A hydrogen bond often informally abbreviated H-bond is a primarily electrostatic force of attraction between a hydrogen H atom which is covalently bound to a more electronegative atom or group particularly the second-row elements nitrogen N oxygen O or fluorine Fthe hydrogen bond donor Dnand another electronegative atom bearing a lone pair of electronsthe hydrogen bond. Hydrogen bonding is a special type of dipole-dipole attraction between molecules not a covalent bond to a hydrogen atom. In other words hydrogen atom acts as a bridge between two electronegative atoms.