The Br
2
-FeBr
3
Complex
+
•
•
Br
Br
•
•
••
••
••
••
Lewis base
Lewis acid
FeBr
3
Br
Br
•
•
••
••
••
••
FeBr
3
–
+
Complex
•
The Br
2
-FeBr
3
complex is more electrophilic
than Br
2
alone.