Primary amines: RNH2
Secondary amines: R2NH
Tertiary Amines: R3N
Quarternary Ammonium Ions: R4N +
Amines may be considered to have been derived from ammonia – a weak base
Amines are weaks bases too. Strength increases as follows:
C6H5NH2 < NH3 < CH3CH2NH2 < (CH3CH2)2NH
