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(a) Schematic of a hierarchically assembled box. (b) Example reported by Ribas and Costas making use of charge separation. The two Zn porphyrin units are available for coordination of a guest. (c) An encapsulated Rh catalyst performed enantioselective hydroformylation of styrene and its derivatives promoted by the confined environment. Reprinted from ref (46). Copyright 2015 American Chemical Society.
