A liquid full of holes

The world's first permanently porous liquid has been developed by an international team of chemists. By adding rigid organic cage molecules to a bulky solvent, the researchers were able to fill the liquid with holes that are not transient in nature and make the solvent behave in some ways like a liquid version of a zeolite or metal-organic framework (MOF). This is unlike the porous macromolecular liquids containing hollow colloidal silica spheres that have been developed previously, rather the liquid really is full of holes. The porous liquid does not yet have the same vast internal surface area as a zeolite or a MOF, but it is perhaps only a matter of time before that development is achieved and opens up a whole new field of separation science, catalysis and reaction media.