Structure and optical limiting effects of heterometallic Ag6@Ti12 and Ag8@Ti12 oxo clusters regulated by alkynyl ligands

Heterometallic Ag 6 @Ti 12 and Ag 8 @Ti 12 oxo clusters were prepared through a strategy of protecting polynuclear silver cores by a hollow Ti–O module in the presence of alkyne ligands, showing distinctive structures and optical limiting effects.