Fig. 1. Composition of porous organic cages. (a) Cage 30136. (b) Cage 36130. (c) Cage 33133. TFB (1,3,5-triformylbenzene) in blue constitutes the face of the cage while “3” (1,2-cyclohexanediamine) in green and “13” (1,2-diamino-2-methylpropane) in red form the vertex of the cage. 3x13y represents the number of “3” (x) and the number of “13” (y) in each cage.
