Sonochemical Synthesis of New Nano-Belt One-Dimensional Double-Chain Lead(II) Coordination Polymer; As Precursor for Preparation of PbBr(OH) Nano-Structure

Nano-structure of a new 1D double-chain Pb(II) coordination polymer, [Pb(mu-HPDC)(mu-Br)(H(2)O)](n) (1), {H(2)PDC = 2,3-pyrazinedicarboxylic acid} was synthesized by a sonochemical method. The new nano-structure was characterized by scanning electron microscopy, X-ray powder diffraction, IR spectroscopy and elemental analyses. The structure of compound 1 was determined by single crystal X-ray diffraction and consists of 1D double-chain polymeric units. The coordination number in compound 1 is six and each lead atom is coordinated by two oxygen atoms of HPDC(-), two nitrogen atoms of HPDC(-) ligands, one bromide atom and one oxygen of H(2)O molecule. The thermal stability of compound 1 was studied by thermal gravimetric and differential thermal analyses. Calcination of the nano-belts of compound 1 at 500 A degrees C under air atmospheres yielded nano-sized particles of PbBr(OH) that characterized by scanning electron microscopy and X-ray powder diffraction.