A mesoporous ionic solid with 272 Au Ag Cu complex cations in a super huge crystal lattice.

Here, we report a unique mesoporous ionic solid () generated from a cationic Au Ag Cu dodecanuclear complex with d-penicillamine depending on the homochirality and crystallization conditions. crystallizes in the cubic space group of 432 with an extremely large cell volume of 2 171 340 Å, containing 272 Au Ag Cu complex cations in the unit cell. In , the complex cations are connected to each other through CH⋯π interactions in a zeotype framework, the topology of which is the same as that of the metal-organic framework in MIL-101, with similar but much larger two types of polyhedral pores with internal diameters of 38.2 Å and 49.7 Å, which are occupied by counter-anions and water molecules. Due to the cationic nature of the framework, undergoes quick, specific exchanges of counter-anions while retaining its single crystallinity. This study realized the creation of a non-covalent mesoporous framework from a single complex salt, providing a conceptual advance in solid chemistry and material science.