Zusammenfassung
The reactivity of the P-4 butterfly complexes [{Cp ''' Fe(CO)(2)}(2)(mu,eta(1:1)-P-4)] (A, Cp ''' = (C5H2Bu3)-Bu-t) and [{Cp*Cr(CO)(3)}(2)(mu,eta(1:1)-P-4)] (B, Cp* = C-5(CH3)(5)) towards the N-heterocyclic carbene IMe (1,3,4,5-tetramethyl-imidazol-2-ylidene) is reported. The reaction of A affords [P(IMe)(2)][Fe(CO)(2)Cp '''] (1) or [P(IMe)(2)][{Cp ''' Fe}(2)(mu,eta(3:3)-P-3)] (2), the latter ...
Zusammenfassung
The reactivity of the P-4 butterfly complexes [{Cp ''' Fe(CO)(2)}(2)(mu,eta(1:1)-P-4)] (A, Cp ''' = (C5H2Bu3)-Bu-t) and [{Cp*Cr(CO)(3)}(2)(mu,eta(1:1)-P-4)] (B, Cp* = C-5(CH3)(5)) towards the N-heterocyclic carbene IMe (1,3,4,5-tetramethyl-imidazol-2-ylidene) is reported. The reaction of A affords [P(IMe)(2)][Fe(CO)(2)Cp '''] (1) or [P(IMe)(2)][{Cp ''' Fe}(2)(mu,eta(3:3)-P-3)] (2), the latter possessing a P-3-allylic moiety. In contrast, the reaction of B yields [P(IMe)(2)][Cr(CO)(3)Cp*] (3) and [{Cp*Cr(CO)(2)}(eta(2)-P2IMe2)][Cr(CO)(3)Cp*] (4), featuring a novel metal-bridged P-2 dumbbell.
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