Two New Metal-Organic Frameworks with Mixed Ligands of Carboxylate and Bipyridine Synthesis, Crystal Structure, and Sensing for Methanol

Two new mixed ligand metal organic frameworks, [Cu-2(OH)(2,2' bipy)(2)(BTC) 2H(2)O](n) (1) and [Co(4 4' bipy) (m BDC)](n) (2) have been synthesized by hydrothermal reaction of Cu(COO)(2) H2O with 1 3 5 benzenetricarboxylic acid (H3BTC) and 2 2' bipyridine and of Co(NO3)(2) 6H(2)O with 1 3 benzenedicarboxylic acid (m H2BDC) and 4,4' bipyridine respectively They were characterized by single crystal X ray diffraction analysis powder XRD, elemental analysis TGA, and IR spectroscopy The adsorption characteristics of compounds 1 and 2 for methanol were investigated in situ with a quartz crystal microbalance (QCM) which indicated that they were highly sensitive to methanol at room temperature