Increased catalytic activity of surface-immobilized palladium complexes in the fluorogenic deprotection of an alloc-derivatized coumarin.

Catalytic surfaces have been prepared by complexation of palladium on self-assembled terpyridine monolayers on silicon. A reaction-based fluorogenic probe was developed to allow facile visualization of the catalytic potential of the surface. Superior activity of the immobilized catalyst compared with the homogeneous control reactions is demonstrated.