Lewis Acids And Bases Flashcards
1
Q
Lewis acid
A
Electron pair acceptor
2
Q
Lewis base
A
Electron pair donor
3
Q
Hard LA and LB
A
Small and highly charged
4
Q
Soft LA and LB
A
Large, polarisable electron density
5
Q
How do EDG affect LA and LB strength
A
Increases base strength and decreases acid strength
6
Q
How do the presence of large group affect LB strength
A
Weaker base
7
Q
How does the presence of a small/large R group affect the strength of LA
A
Large R = weaker LA
Small R = stronger LA
8
Q
Frustrated Lewis pairs
A
Sterically hindered strong LA and sterically hindered strong LB makes a frustrated pair that has unquenched reactivity
