Generation of Defect‐Modulated Metal–Organic Frameworks by Fragmented‐Linker Co‐Assembly of CPO‐27(M) Frameworks

Abstract The generation of defect‐modulated metal–organic frameworks (MOFs) by the successful stepwise doping of 2‐hydroxyterephthalate (BDC‐OH) into frameworks of the CPO‐27‐M type is discussed. The influence of MgII, CoII, and NiII ions on the product formation has been investigated by powder XRD (PXRD), IR spectroscopy, and thermal analysis. To establish the successful incorporation of the fragmented linker molecule, 1H NMR spectra were recorded after the digestion of the MOFs in DCl/[D6]dimethyl sulfoxide. After the incorporation of BDC‐OH, microporous structures were generated with reasonable porosity. The morphologies of the reaction products were checked by SEM measurements, and no significant changes to the morphologies were observed after the fragmented‐linker doping.