Self-assembly of ML tetrahedral cages incorporating pendant P&z.dbd;S and P&z.dbd;Se functionalised ligands

Herein, the synthesis of metal-organic tetrahedral cages featuring flexible thio- and selenophosphate-based ligands is described. The cages were prepared by sub-component self-assembly of A&z.dbd;P(OC 6 H 4 NH 2 -4) 3 (A = S, Se) or S&z.dbd;P(SC 6 H 4 NH 2 -4) 3 , 2-pyridinecarboxaldehyde, and either Fe[BF 4 ] 2 or Co[BF 4 ] 2 . Preliminary host-guest studies into the ability of the pendant P&z.dbd;S and P&z.dbd;Se groups to interact with suitable substrates will be discussed. The synthesis and study of metal-organic tetrahedral cages incorporating flexible thio- and selenophosphate-based ligands.