Porous Assembly of Metallo-Supramolecule and Polyoxometalate via Ionic Complexation with Vapor Sorption Properties

Comprehensive Summary Porous materials have been extensively developed and displayed special applications in diverse fields, however, it still remains a great challenge in developing new synthetic methods with features of energy-saving and easy-operating. In this study, we reported the construction of a series of novel ionic complexes based on discrete supramolecular triangle structure and polyoxometalate [Mo6O19](2-), using a quite efficient strategy. The obtained composites exhibit precise 3D network structures with ideal stability containing micropores, which were characterized by the H-1 NMR, ESI-MS, TEM, SEM, and single-crystal X-ray diffraction. These composites showed differential vapor adsorption behaviors for benzene, toluene, and cyclohexane. This work provides a novel approach for fabricating porous materials through electrostatic interactions and has great potential for gas separation.