2D Layer Structure in Two New Cu(II) Crystals: Structural Evolvement and Properties

Two new Cu(II) crystals, {[Cu(dtp)]·H2O}n (1) and [Cu(Hdtp)(bdc)0.5]n (2) (H2dtp = 4′-(3,5-dicarboxyphenyl)-2,2′:6′,2‴-terpyridine, H2bdc 1,4-benzenedicarboxylic acid) were synthesized under hydrothermal conditions. X-ray single-crystal structural analysis revealed that the 5-connective is in a distorted tetragonal-pyramidal coordination sphere for both compounds. Crystal 1 shows “wave-shaped” 2D layer structure, while 2 bears 1D chain structure supermolecular with thickness of 7.9 Å via stacking. PXRD TGA measurements showed are air stable, thermal stabilities near 300 °C.