| Abstract: | Synthesis and Crystal Structures of New Phosphorus‐bridged Bimetallic Clusters of the Elements Mercury and Iron The reaction of Fe(CO)4(HgX)2] (X = Cl, Br) with P(SiMe3)2tBu in the presence of tertiary phosphines and phosphinium salts leads to the ionic compounds PPh4]2Hg12{Fe(CO)4}8(PtBu)4X2] (X = Cl, Br) ( 1 , 2 ). If Fe(CO)4(HgX)2] reacts with P(SiMe3)2tBu the polymeric polynuclear complex Hg15{Fe(CO)4}3(PtBu)8Br8]n ( 3 ) as well as the twenty mercury‐ and eight iron‐atoms containing Hg20{Fe(CO)4}8(PtBu)10X4]‐clusters (X = Br, Cl) ( 4 , 5 ) are formed. The reaction of Fe(CO)4(HgX)2] with LiPPh2 yields to the phosphanido‐bridged Hg4{Fe(CO)4}2(PPh2)2Cl2] ( 6 ), where as the use of LiP(SiMe3)Ph leads to the diphosphinidene‐bridged cluster Li(thf)4]2Hg10{Fe(CO)4}6(P2Ph2)2Br6] ( 7 ). The structures of the compounds 1–7 were characterized by X‐ray single crystal structure analysis. |
