A truncated triangular prism constructed by using imidazole-terpyridine building blocks.

The construction of low-symmetry topological supramolecular structures using bistable building blocks remains challenging. We report an unusual truncated triangular prismatic cage with D 3h symmetry using a ligand with both cis - and trans -configurations upon coordination with metal. This work provides new ideas and methods for the future synthesis of low-symmetry topological supramolecules.