Interconversion between multicomponent slider-on-deck and palladium capsule: regulation of catalysis and encapsulation.

When the slider-on-deck [Cu 3 (1)(2)] 3+ and guest G were treated with palladium(II) ions, the biped 2 was released from [Cu 3 (1)(2)] 3+ generating the nanocage [Pd 2 (2) 4 (G)] 4+ with guest G being encapsulated (NetState-II). This transformation that was reversed by the addition of DMAP enabled modulation of both the overall fluorescence and the activity of copper(I) catalyzing an aza Hopf cyclization.