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Synthesis and Reactivity of Low-Valent Group 14 Element Compounds

Johnson, Brian P. ; Almstätter, Stefan ; Dielmann, Fabian ; Bodensteiner, Michael ; Scheer, Manfred



Abstract

The tetravalent germanium and tin compounds of the general formulae Ph*EX3 (Ph* = C6H3Trip-2,6, Trip = C6H2iPr3-2,4,6; E = Sn, X = Cl (1a), Br (1b); E = Ge, X = Cl (2)) are synthesized by reaction of Ph*Li·OEt2 with EX4. The subsequent reaction of 1a,b with LiP(SiMe3)2 leads to Ph*EP(SiMe3)2 (E = Sn (3), Ge (4)) and the diphosphane (Me3Si)2PP(SiMe3)2 by a redox reaction. In an alternative ...

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