title: Synthesis and characterization of nano-peanuts of lead(II) coordination polymer [Pb(qcnh)(NO3)2]nwith ultrasonic assistance: A new precursor for the preparation of pure-phase nano-sized PbO.
abstract: A sonochemical method was used to synthesize nano-peanuts of a new lead(II) coordination 1D polymer, [Pb(qcnh)(NO3)2]n(1), where qcnh=2-quinolincarbaldehyde nicotinohydrazide. The compound was characterized by scanning electron microscopy (SEM), elemental analysis, IR spectroscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), X-ray powder diffraction (XRD), and single crystal X-ray analysis. The X-ray structure revealed that the Pb(II) atom is coordinated by one oxygen and three nitrogen atoms from two qcnh ligands and five oxygen atoms from three nitrate ligands in an 8+1 fashion with a PbN3O6donor set. One of the PdN distances in the vicinity of the central atom is a bit longer (Pb1N1=2.939(4) Å), which shows the effect of the 6s2lone electron pair localized within the valence shell of the lead(II) atom. PbO nanoparticles were obtained by thermolysis of 1 at 180°C with oleic acid as a surfactant. The average diameter of the nanoparticles was estimated by XRD to be 28nm. The morphology and size of the prepared PbO nanoparticles were further studied using SEM.
authors: Department of Chemistry, Faculty of Science, University of Qom, PO Box 37185-359, Qom, Iran. Electronic address: babakm.tamizdoust@gmail.com.
authors: Babak
authors: B
authors: Mirtamizdoust
authors: Department of Inorganic Chemistry, Faculty of Science, Palacký University in Olomouc, Olomouc, Czech Republic.
authors: Zdeněk
authors: Z
authors: Trávníček
authors: School of Mechanical Engineering, WCU Nano Research Center, Yeungnam University, Gyongsan 712-749, South Korea. Electronic address: y_hanifehpour@yu.ac.kr.
authors: Younes
authors: Y
authors: Hanifehpour
authors: School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
authors: Pejman
authors: P
authors: Talemi
authors: Department of Chemistry, Faculty of Science, Beirut Arab University, Beirut, Lebanon.
authors: Hassan
authors: H
authors: Hammud
authors: School of Mechanical Engineering, WCU Nano Research Center, Yeungnam University, Gyongsan 712-749, South Korea. Electronic address: swjoo1@gmail.com.
authors: Sang Woo
authors: SW
authors: Joo
keywords: Crystal structure; Nano-peanuts; Pb(II) nano coordination polymer; PbO nanoparticles