10 Radicals in Frustrated Lewis Pair Chemistry
369
Al(C 6 F 5 ) 3
O 2
-O 2
O O
Al(C 6 F 5 ) 3
Al(C 6 F 5 ) 3
2Cp* 2 Fe
-2[Cp* 2 Fe]
(C 6 F 5 ) 3 Al
O
Al(C 6 F 5 ) 3
O
2 C 6 F 5
Cp* 2 Fe
Al(C 6 F 5 ) 3
-[Cp* 2 Fe]
[Al(C 6 F 5 ) 4 ]
(C 6 F 5 ) 3 Al
O
Al(C 6 F 5 ) 3
O
2 Al(C 6 F 5 ) 3
(C 6 F 5 ) 3 Al
O
Al(C 6 F 5 ) 3
O
Al(C 6 F 5 ) 3
Al(C 6 F 5 ) 3
Cp* 2 Fe
O 2
Al(C 6 F 5 ) 3
+
O
Al O
Al
C 6 F 5
C 6 F 5
Al(C 6 F 5 ) 3
(C 6 F 5 ) 3 Al
C 6 F 5
C 6 F 5
+ [Cp* 2 Fe]
[Al(C 6 F 5 ) 4 ]
+ unidentified
products
2
2[Cp* 2 Fe]
13
14
Scheme 10.9 Reaction of pseudo-FLP Cp* 2 Fe/Al(C 6 F 5 ) 3 (1:2) with O 2 (top). Proposed mechanism for the reaction of Cp* 2 Fe/Al(C 6 F 5 ) 3 with O 2 (bottom)
Al
Cp* 2 Fe
Se
Al(C 6 F 5 ) 3
+
Se
Al Se
Al
C 6 F 5
C 6 F 5
Al(C 6 F 5 ) 3
(C 6 F 5 ) 3 Al
C 6 F 5
C 6 F 5
+ [Cp* 2 Fe]
[Al(C 6 F 5 ) 4 ]
+ unidentified
products
2
2[Cp* 2 Fe]
Cp* 2 Fe
Te
Al(C 6 F 5 ) 3
+
+ [Cp* 2 Fe]
[Al(C 6 F 5 ) 4 ]
+ unidentified
products
[Cp* 2 Fe]
Te
Te
Al(C 6 F 5 ) 2
Al(C 6 F 5 ) 2
C 6 F 5
C 6 F 5
Scheme 10.10 Reactions of pseudo-FLP Cp* 2 Fe/Al(C 6 F 5 ) 3 (1:2) with selenium and tellurium
Cp* 2 Fe
S 8
B(C 6 F 5 ) 3
+
2
2[Cp* 2 Fe]
S
S
S S
S S
S
B(C 6 F 5 ) 3
(C 6 F 5 ) 3 B
Scheme 10.11 Reaction of Cp* 2 Fe/B(C 6 F 5 ) 3 with sulfur