Synthesis and Structure of Organometallic Compounds with (Al2Si)2 and Al3Sb2 Frameworks

A complex with an eight‐membered Al4F4 ring in which pairs of Al atoms are bridged by Ph2Si units is the unexpected product of the reaction of [(Cp*Al)4] with Ph2SiF2[Eq. (a)]. The formation of 1 can be explained in terms of the marked fluorophilicity of [(Cp*Al)4]. Reaction of [(Cp*Al)4] with (tBuSb)4 yields [(Cp*Al)3Sb2], the first organometallic compound to contain an aluminium‐antimony bond. equation image