Facile insertion and halogen migration reactions of the hexaphosphapentaprismane cage P6C4tBu4 with zerovalent and divalent platinum complexes†
Abstract
The hexaphosphapentaprismane P6C4tBu4 undergoes specific insertion of the zerovalent platinum fragment [Pt(PPh3)2] into the unique P–P bond between the 5-membered rings to afford [Pt(PPh3)2P6C4tBu4]. A similar reaction with the Pt(II) complexes [{PtCl2(PMe3)}2] and [PtCl2(η4-COD)] results in both insertion and chlorine migration reactions. The complexes [Pt(PPh3)2P6C4tBu4], trans-[PtCl(PMe3)P6C4tBu4Cl], cis-,trans-[{PtCl2(PMe3)}µ-{P6C4tBu4}{PtCl2(PMe3)}], [{PtClP6C4tBu4Cl}2] and cis-[PtClP6C4tBu4Cl(P6C4tBu4)] have been structurally characterized by