Effects of Halogen Bonding in Chemical Activity of Lead(II) Electron Pair: Sonochemical Synthesis,Structural Studies,and Thermal Analysis of Novel Lead(II) Nano Coordination Polymer |
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| Authors: | Younes Hanifehpour Babak Mirtamizdoust Bamin Khomami Sang Woo Joo |
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| Institution: | 1. School of Mechanical Engineering, WCU Nano Research Center, Yeungnam University, Yeungnam, Korea;2. Department of Chemistry, Faculty of Science, University of Qom, PO Box 37185–359, Qom, Iran;3. Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA |
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| Abstract: | The nanoflower lead(II) coordination compound {Pb(phen)(μ‐CH3COO)]PF6]}n ( 1 ) (phen = 1,10‐phenanthroline) was synthesized by a sonochemical method. The nanostructure was characterized by using scanning electron microscopy (SEM), X‐ray powder diffraction, elemental analysis, and thermal analysis. The single‐crystal X‐ray structure shows that the overall structure of 1 is a 1D coordination polymer. Complex 1 has a bridging acetate pathway. Three halogen bonds observed in the structure and the strong halogen bonding of F–Pb causes chemical activity of the lead electron pair. This is further extended into a 3D supramolecular structure by weak π–π intermolecular interactions. The coordination number of the lead(II) ions is six, resulting in PbN2O4. PbO nanoparticles were obtained by the thermolysis of 1 at 180 °C with oleic acid as a surfactant. The morphology and size of the prepared PbO nanoparticles were further observed using scanning electron (SEM) and transmission electron microscopy (TEM), and were analyzed by X‐ray photoelectron spectroscopy (XPS). |
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| Keywords: | Nano‐flower cordination polymer Lead Electron pair Halogen bonding Nano lead(II) oxide |
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