Figure 1.
Porous molecular materials can be produced as (a) crystalline solids,64 (b) amorphous solids,36,42 or (c) liquids.48 For scale, the coin diameter in panel a is 22.5 mm. The amorphous thin film in panel b is made from a scrambled cage mixture, composition denoted by the chromatogram. Panel c, lower, shows xenon gas being displaced from a porous liquid by chloroform. In all cases, cycloimine cages are depicted, formed from the [4 + 6] condensation of 1,3,5-triformylbenzene with various 1,2-substituted vicinal diamines.