N-Heterocyclic Carbene Ligands in Nonsymmetric Diiron Models of Hydrogenase Active Sites

Reaction of [Fe 2 {μ-S(CH 2 ) 3 S}(CO) 6 ] ( 1 ) at room temperature with the N-heterocyclic carbenes I Me -(CH 2 ) 2 -L (I Me = 1-methylimidazol-2-ylidene, L = NMe 2, SMe) afforded the pentacarbonyl carbene derivatives [Fe 2 {μ-S(CH 2 ) 3 S}(CO) 5 {I Me -(CH 2 ) 2 -NMe 2 }] ( 2a ) and [Fe 2 {μ-S(CH... View More