Use of a -P building block - a way to networks of host-guest assemblies.

Despite the proven ability to form supramolecular assemblies coordination to copper halides, organometallic building blocks based on four-membered -P ligands find only very rare application in supramolecular chemistry. To date, only three types of supramolecular aggregates were obtained based on the polyphosphorus end-deck complexes CpTa(CO)(η-P) (: Cp = Cp''; : Cp = Cp'''), with none of them, however, possessing a guest-accessible void. To achieve this target, the use of silver salts of the weakly coordinating anion SbF was investigated as to their self-assembly in the absence and in the presence of the template molecule PSe.