Amines constitute an important class of organic compounds derived by replacing one or more hydrogen atoms of NH 3 molecule by alkyl / aryl group ( s ).
In the IUPAC system , the amines are regarded as alkanamines , e . g .,
Structure
The nitrogen atom in amine is spa-hybridised . The three hybrid orbitals are involved in bond formation and one hybrid atomic orbital contains the lone pair of electrons , giving the pyramidal geometry of amines .