title: Sonochemical syntheses of two new flower-like nano-scale high coordinated lead(II) supramolecular coordination polymers.
abstract: Two new neutral nano flower polymeric lead(II) coordination compounds, [Pb(tmph)(μ-SCN)₂]n (1) and [Pb(tmph)(μ-NO₃)₂]n (2), [tmph=3,4,7,8-tetramethyl-1,10-phenanthroline], have been synthesized by a sonochemical process and characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRPD), FT-IR spectroscopy and elemental analyses. SEM image shows the nano flower morphology for the products. Single-crystal X-ray studies show that the overall structure of the both 1 and 2 are 1D double chain net-like coordination polymers. Compound 1 has a very rare bridging cyanato pathway; a tetra dentate bridging between four Pb(II) centers. 1D double chains of compounds 1 and 2 further extended into two-dimensional (2D) and three dimensional (3D) supramolecular structures by strong π-π directional intermolecular interactions, respectively.
authors.affiliation: School of Mechanical Engineering, WCU Nano Research Center, Yeungnam University, Gyongsan 712-749, South Korea.
authors.forename: Younes
authors.initials: Y
authors.lastname: Hanifehpour
authors.affiliation: Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, P.O. Box 14115-4838, Tehran, Islamic Republic of Iran.
authors.forename: Vahid
authors.initials: V
authors.lastname: Safarifard
authors.affiliation: Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, P.O. Box 14115-4838, Tehran, Islamic Republic of Iran. Electronic address: morsali_a@modares.ac.ir.
authors.forename: Ali
authors.initials: A
authors.lastname: Morsali
authors.affiliation: Department of Chemistry, Faculty of Science, University of Qom, P.O. Box 37185-359, Qom, Islamic Republic of Iran.
authors.forename: Babak
authors.initials: B
authors.lastname: Mirtamizdoust
authors.affiliation: School of Mechanical Engineering, WCU Nano Research Center, Yeungnam University, Gyongsan 712-749, South Korea. Electronic address: swjoo1@gmail.com.
authors.forename: Sang Woo
authors.initials: SW
authors.lastname: Joo
keywords: Coordination polymer; Flower-like; Nano-structure; Ultrasound