Construction of binary metal–organic cage-based materials via a "covalently linked plus cage encapsulated" strategy.

A strategy for constructing binary metal–organic cage (MOC)-based materials was developed. The cationic MOCs were covalently linked by organic linkers to a cationic extended network, whereas the anionic MOCs acted as counterions and were encapsulated in the network. Compared with the corresponding unary materials, the binary MOC-based materials exhibited improved porosity and adsorption performance. [ABSTRACT FROM AUTHOR]