Two complexes [Ni(pda)(H2pda)]·3H2O (1) and [Cu(pda)(H2pda)] (2) containing pyridine-2,6-dicarboxylic acid (H2pda) were synthesized by room-temperature solid state reaction and characterized by elemental analyses, powder X-ray diffraction (PXRD), single crystal X-ray diffraction and infrared spectroscopy. The powder complexes were confirmed as single phase with their PXRD. The thermal property was studied using simultaneous thermogravimetry and differential scanning calorimetry (TG-DSC) techniques. The complexes were decomposed in several stages and the final products of their thermal decomposition were NiO and CuO, respectively. In order to explore application of the complexes, the nano-NiO and nano-CuO particles were produced by using the powder complexes as precursors at different temperatures. The particles were characterized and observed by PXRD and scanning electron microscope (SEM), and their average diameters of the pyrolysis products at 500 °C were about 12 and 30 nm, respectively.
Xi Jiang, Zhao-Hui Chen, Huan Luo, Rong-Gui Yang, Ting Liu and Guo-Qing Zhong
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