Sonochemical synthesis of nano-scale mixed-ligands lead(II) coordination polymers as precursors for preparation of PbO and PbBr(OH) nano-structures; thermal,structural and X-ray powder diffraction studies |
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| Authors: | Homa Sadeghzadeh Ali Morsali Veysel T Yilmaz Orhan Büyükgüng?r |
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| Institution: | 1. Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, P.O. Box 14155-4838, Tehran, Iran;2. Department of Chemistry, Faculty of Arts and Sciences, Uludag University, 16059 Gorukle, Bursa, Turkey;3. Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayis University, 55139 Kurupelit, Samsun, Turkey |
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| Abstract: | Nano-structures of two new lead(II) two-dimensional coordination polymers, Pb2(2-pyc)2(I)2]n (1) and Pb2(2-pyc)2(Br)2]n (2), {2-Hpyc = 2-pyridinecarboxilic acid } were synthesized by a sonochemical method that produce the coordination polymers at nano-size. The new nano-structures were characterized by scanning electron microscopy, X-ray powder diffraction, IR spectroscopy and elemental analyses. Compounds 1 and 2 were structurally characterized by single crystal X-ray diffraction and consist of two-dimensional polymeric units. The thermal stability of compounds 1 and 2 were studied by thermal gravimetric and differential thermal analyses. PbO and PbBr(OH) nano-structures were obtained by calcination of the nano-structures of compounds 1 and 2 at 400 °C, respectively. |
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