Synthese und Kristallstrukturen neuer phosphorverbrückter bimetallischer Cluster der Elemente Quecksilber und Eisen |
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| Authors: | Frank Hezel Dieter Fenske Jan Eisenmann Thomas Wetzel |
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| 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]2[Hg12{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]2[Hg10{Fe(CO)4}6(P2Ph2)2Br6] ( 7 ). The structures of the compounds 1–7 were characterized by X‐ray single crystal structure analysis. |
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| Keywords: | Cluster compounds Mercury iron cluster Phosphinidene‐, phosphanido‐, diphosphinidene‐bridged mercury clusters Iron carbonyl Crystal structure |
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