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Hydrogen Bonding
The dashed line from the hydrogen of the NH group to the oxygen of the CO group to depicts the hydrogen bond.
Hydrogen bonds are formed in the presence of two electronegative atoms where one of the atoms has a hydrogen attached to it and the other has a lone pair of electrons.
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Hydrogen Bonding

    * The dashed line from the hydrogen of the NH group to the oxygen of the CO group to depicts the hydrogen bond.
  • The nitrogen is the H-bond donor; in a hydrogen bond, the nitrogen atom acts as a hydrogen donor, since it has the hydrogen atom attached to it.
  • The oxygen atom is the H-bond acceptor; the oxygen atom acts as the hydrogen bond acceptor, since the hydrogen bond is created with this atom.