Although several of the synthesized MOFs have the same framework topology-SU-104, SU-108, SU-110 and SU-111 all being described by the hcb net, or SU-105, SU-106, SU-107, SU-109, and SU-112 all with the dia net-it should be emphasized that each of these MOFs are indeed distinct phases as any one framework cannot be converted into another without breaking and/or forming new bonds. A summary of structural features is presented in Table . The differences in the structures become apparent upon inspection of the coordination environment around the Zr(IV) cations in each structure (Supplementary Fig. ). The most obvious difference is the coordination number of the Zr(IV) cation. There is only one crystallographically unique Zr(IV) cation in each structure, to which four ellagate anions coordinate, forming a Zr(EA)4 motif, except for SU-103 which is made of Zr2O12 dimers. It should be noted that, in all but one of the MOFs, each ellagate bridges and is shared by two Zr(IV) cations and so the Zr:EA ratio is 1:2, except for SU-111 in which one of the four ellagate ligands is terminally coordinating resulting in a ratio of 1:2.5.