Sonochemical synthesis of nano-sized metal-organic lead(II) polymer: A precursor for the preparation of nano-structured lead(II) iodide and lead(II) oxide

Nanoparticles of a new PbII metal-organic polymer, [Pb(μ-pyr)(μ-I)2]n (1), with a net-like morphology have been synthesized by the reaction of pyrazine with Pb(NO3)2 and NaI via sonochemical irradiation. Nano-structured PbI2 and PbO were synthesized from compound 1 by calcination at argon and air atmospheres, respectively. The structure of 1 was determined by single crystal X-ray crystallography and the nano-structures were characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The thermal stability of nano-sized and single crystalline samples of 1 were studied and compared.