Ligand-Stabilized [P4]~(3+) Cations

摘要

Ligand stabilization has been exploited to access novel, soluble allotropes of main-group elements. A series of neutral, homoatomic units (Si2, C1, P2, P4, P_(12)) in an oxidation state of zero have been recently isolated using carbenes as supporting ligands. Homoatomic cages and clusters of Group 15 elements are known, and derivatives of P4, poly-phosphorus anions (for example Zintl anions), and polyphos-phanes have been extensively developed; however, examples of polyphosphorus cations have not been reported.