Unit Construction in the Formation of Metal Clusters──Investigation on the Metal Cluster Compounds Containing Fe_2S_2(CO)_6-units

1INTRODUCTIONThechemistryofMo--S,Fe--SandMo-Fe--Sclustercomplexeshasincreasinglyinterestedchemistsandbioinorganicchemistssincetheexistenceofmetal-sulfurbondinginmetalenzymes,especiallytheFe--Mo--Sclusterastheactivecenterinni-trogenase,wasdiscovered.Recently,aninterestingFe--SstructuralunitFeZSZ(CO),t'3,hasbeeningoodglancesofpeopleandthechemistryofthemetalclustercompoundscontainingFe,S,(CO),-unitshasbeenfocusedbygreatattentionbecausei)FeZSZ(CO)6isanironsourceforthesynthesisofMo-…

Unit Construction in the Formation of Metal Clusters──Investigation on the Metal Cluster Compounds Containing Fe_2S_2(CO)_6-units

The syntheses and structures of trinuclear Mo (W)-Fe-S clusterMFe2S2(CO)8 (S,CNSEt2)]- (M=Mo, W), hexanuclear Fe-S cluster Fe6S6-(CO)12]2- and undecanuclear Cu-Fe-S cluster Cu5Fe6S6(CO)18(PPh3)2]-, containingFe2S2(CO)6-units bave been summarized and the important vestiges left in their struc-tures reflecting the formation processes of the clusters have been found and discussed.Further inspecting some other typical clusters a regular unit construction in the forma-tion of the metal cluster compounds containing Fe2S2(CO)6-units has been figured outand applied to speculate and predict several new cluster compounds containing Fe2S2(CO)6-units.