CH1012
L1 /
‹#›
L1 /
6
MECHANISMS
• Two limiting
mechanisms have been identified for nucleophilic
substitution.
• SN2 and SN1 are the abbreviations for
these
mechanisms which are general reactions for both organic & inorganic chemistry.
mechanisms which are general reactions for both organic & inorganic chemistry.
Substitution Nucleophilic 2 (bimolecular)
Substitution Nucleophilic1 (unimolecular)
• Bimolecular refers to both nucleophile &
R-X involvement in the TS for the
Rate Determining Step (RDS).
R-X involvement in the TS for the
Rate Determining Step (RDS).
• Unimolecular refers to the
involvement of only
R-X in the TS for the RDS.
