Metal-Organic Frameworks with Rod Yttrium Secondary Building Units

We report a new hydroxamate-based yttrium MOF, named MOF-419 [Y(HCOO)(BDH)], with rod-SBUs. The compound was synthesized employing chelating construction of benzene-1,4-hydroxamate (BDH2-) linkers, and the use of formic acid as the modulator was found to be crucial for the formation of rod-shaped SBUs. MOF-419 shows permanent porosity and has a BET surface area of 1130 m(2)/g. Its hydrophobic pore environment and gas sorption properties were demonstrated through the combination of single crystal X-ray diffraction and nitrogen, carbon dioxide, and water sorption experiments. We envision that these results will aid the study and understanding of rod MOFs with chelating linkages.