Aluminum compounds are often Lewis acids, though if they are bonded to atoms with lone pairs (O, N, halogens) resonance tends to diminish the behavior a bit relative to boron.
The Periodic Table in action! Go down one row for each atom; we see the same behavior.
Aluminum compounds are often Lewis acids, though if they are bonded to atoms with lone pairs (O, N, halogens)
resonance tends to diminish the behavior a bit relative to boron.