Synthesis, X-ray crystallography, thermogravimetric analysis and spectroscopic characterization of isostructural one-dimensional coordination polymers as sorbents for some anions

摘要: A new diaza-macrocyclic ligand bearing two pyridine side arms (L2) was synthesized and characterized by single-crystal X-ray diffraction (SCXRD), elemental analysis, FT-IR, 1H 13C NMR methods. The macrocyclic showed a great tendency to act as an appropriate tecton in the formation of coordination polymers presence Cu, Ni, Mn, Pb, Cd chlorides. Five isostructural one dimensional metal–organic [{M(Cl)2}(L)4] (M = Cd) were prepared DMSO or DMF IR spectroscopy, TGA-DTG, powder (PXRD) diffraction. All employed solid sorbents for Cr(VI) anions aqueous solution. Within series, Pb(II) polymer demonstrated notable absorption behavior sorption some oxo-anions such MoO42−, WO42−, MnO4− (environmental concern anions), together with HPO42−. anion adsorption properties attributed surface positive charge on polymer.