Formation of [(L)Ni(μ2-S)x{Fe(CO)3}x] adducts (x = 1 or 2): analogues of the active site of [NiFe] hydrogenase

Abstract
The binuclear [Ni(L)Fe(CO)3], 1, and trinuclear [Ni(L){Fe(CO)3}2], 2, complexes adopt unusual structural motifs whereby Fe(CO)3 units bind to [Ni(L)] via μ2-S bridging modes, CN imine π-bonds and potential Ni–Fe bonding interactions.
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