Functional MOFs, characterization

A wide range of characterization techniques are available for materials and most of them are appHcable to functionalized MOFs to evidence the degree of functionalization and to determine the postmodification yield as well as the retention of the intrinsic properties of the solids. 

Recently, Farrusseng and coworkers reported two cutting-edge soHd-state characterization techniques, which were directly transferred from biochemistry to functional MOFs (Figure 10.6). 

Rosseinsky and coworkers reported the postmodification of IRMOF-3 with sali-cylaldehyde by imine condensation, leading to the formation of the MOF-supported Schiffbase with 13% yield. The resulting salicylidene-functionalized IRMOF-3 was used as an N-O ligand for a vanadium oxide complex and characterized by liquid-state NMR and PXRD analyses. The obtained MOF-supported vanadium catalyst was found to be active for cyclohexene a-oxidation with tBuOOH, although both conversion and TOF were relatively low, a possible problem involving framework coUapse was identified [118]. 

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