Synthesis, structure and luminescent property of a new hybrid solid based on Keggin anions and silver-organonitrogen fragments

A new hybrid solid, {Ag(phen)2}2{[Ag(phen)]2[PMo12O40]} (phen=1,10-phenanthroline) 1, constructed from one-electron-reduced mono-supported α-Keggin polyanions and silver-phenanthroline fragments via either covalent bonds or supramolecular interactions, is described. In the structure of 1, mono-supported {Ag(phen)[PMo12O40]}3− polyanions are connected by {Ag(phen)}+ linking fragments to form a hybrid chain structure with engrafted phen ligands. {Ag(phen)2}+ counter-cations occur in pairs trapping in strong inter-chain π–π stacking to form a three-dimensional supramolecular framework. Luminescent investigation of the compound indicates that 1 displays fascinating orange luminescent property at ambient temperature.