Synthesis and characterization of two novel coordination polymers based on the rigid 1H-1,2,3-triazole-4,5-dicarboxylic acid ligand.

Two novel three-dimensional (3-D) coordination polymers, [Pb(HTDA)] (1) and [Co(TDA)(HTDA)(HO)] (2) [HTDA = 1H-1,2,3-triazole-4,5-dicarboxylic acid], have been prepared by hydrothermal reactions and characterized by elemental analysis, infrared spectroscopy and single-crystal X-ray diffraction. Compound 1 is constructed from rod-shaped secondary building units (SBUs) and exhibits a 3-D network with (4·6)(4·6·8) topology. Compound 2 is built up from ligands bridging three different cobalt ions and exhibits a 3-D network with (4·8)(4·8·10) topology. In addition, the thermal stabilities of the two compounds, the photoluminescence properties of compound 1 and the magnetic properties of compound 2 have been studied. [ABSTRACT FROM AUTHOR]