Characterization of the microporosity of different metal-organic frameworks using 129Xe NMR spectroscopy

摘要

A series of metal-organic frameworks (MOF) like Zn-MOF-5, TT-1, Cd-, and Co-MOF are investigated using 129Xe NMR spectroscopy. 129Xe NMR experiments are performed over a xenon pressure range from 5 kPa to 150 kPa for studying properties of the MOF’s such as the pore dimensions, geometry of the pores, coadsorbed phases, and the influence of the composition of the materials on the chemical shift of the adsorbed xenon. The differences observed in the chemical shifts values can be attributed to different types of micropores generated by the synthesis procedure and the composition of the materials.