New zinc(II) mixed ligand coordination polymers at nano and bulk size,precursor for preparation of ZnO nanoparticles

Three-Dimensional ZnII coordination polymer containing ۴,۴´-bipyridine (۴,۴΄-bipy) andbenzene ۱,۴-dicarboxilic acide (BDCA), [Zn۲(-۴,۴΄-bipy)(-BDCA)۲]n has been synthesizedand characterized by elemental analysis, IR spectroscopy, Raman and its structures studied bysingle Crystal X-ray crystallography. ZnO nanoparticles were obtained by calcination ofcompound at ۵۰۰ºC under air atmosphere and were characterized by X-Ray Diffraction (XRD),Raman spectroscopy, solid state UV and Scanning Electron Microscopy (SEM) [۱-۲].Reaction between mixture of ۴,۴΄-bipy and BDCA with a mixture of zinc(II) acetate led toformation of the new zinc(II) ۳D coordination polymer [Zn۲(-۴,۴΄-bipy)(-BDCA)۲]n.Nanoparticles of this Nano Coordination Polymers (NCP) were obtained by ultrasonic irradiationin a Methanol/water solution and single crystalline material was obtained using a slow evaporation𝑍n(OAC)۲ + ۴,۴ − bpyr + BDCA →→{(MeOH) in Branched−Tube→ {Single Crystal of [Zn۲( − ۴,۴΄ − bipy)۲( − BDCA)۲]nUltrasond Irradiation+MeOH→ {Nanoscale of [Zn۲( − ۴,۴΄ − bipy)۲( − BDCA)۲]n →→Calcination at ۵۰۰−۶۰۰℃→ Nanoparticle of ZnO