A facile route for the synthesis of new 1D copper(II) coordination polymer as precursors for preparation of nano structures: Crystallography and Hirshfeld surface analysis

Abstract

The purpose of the present study was to investigate a simple approach for synthesis of new 1D copper (II) coordination polymer as a precursor for preparation of nano-structures based on crystallography and Hirshfeld surface analysis method. In doing so, A novel 1D copper(II) coordination polymer compound of [Cu(tp)(phen)]n(1) (tp = 1,4-benzendicarboxylic acid and phen: 1,10-Phenanthroline) was synthesized using two different methods, such as branched-tube and sonochemical methods. The X-Ray Diffraction (XRD) results revealed that with applying both methods, the produced compounds have a same crystalline phase. A Single crystal X-ray analysis of produced compound 1 using the branched-tube method showed that Cu2+ ions are 6-coordinated. The contribution of intermolecular interactions in compound 1 were studied by Hirshfeld Surface Analysis method. The role of sonication power, reaction time, concentrations of reactants, temperature on the growth and final morphology of the obtained nanostructures were studied by the sonochemical method. While, the concentrations of reactants and reaction time directly affected the final size of nano-structures of compound 1, the sonication power and temperature showed an inverse impact. Compound 1 was used as a new precursors for preparation of Cu(II) oxide structures via solid-state thermal decomposition process. The nano-structures of compound 1 were further analyzed by IR spectroscopy, powder X-ray diffraction (PXRD) and Scanning Electron Microscopy (SEM).