CH1012
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10
MECHANISMS III
 
     Nucleophiles Electrophiles
• nucleus seeking electron seeking
• electron rich electron deficient
• donates an e- pair seeking an e- pair
   to a reaction centre to fill outer shell
• eg. R3N:, HO:-, I-  H+, R3C+, Br+
not Na+, K+ etc
Electron rich atoms/molecules are attracted to electron deficient atoms/molecules.