1. Isostructural Coexistences [53,54]

2. Brucine is isostructural to strychnine with methoxy groups, rather than hydrogen, at the 9- and 10-positions of the aromatic ring

3. We successfully prepared cocrystals of Py and Anilic acids bearing different halogens, in which 2D assemblies isostructural with those observed in PyCA exhibit various overlapping patterns

4. A high-temperature polymorph exists, indialite, which is isostructural with beryl and has a random distribution of Al in the (Si,Al)6O18 rings.

5. These involve a remarkable coexistence of all three phase states commonly encountered in discotics including isostructural Coexistences I$_1$-I$_2$-N-C, I-N$_1$-N$_2$-C, and I-N-C$_1$-C$_2$