Cobalt, nickel, copper and cadmium coordination polymers containing the bis(1,2,4-triazolyl)methane ligand

Co(II), Ni(II), Cu(II) and Cd(II) coordination polymers containing the flexible ditopic bis(1,2,4-triazol-1-yl)methane ligand (Btm) have been prepared by reaction of equimolar quantities of the corresponding cobalt, nickel, copper and cadmium salts in EtOH solution. Structure solution and refinement of polycrystalline materials were performed by powder diffraction technique (XRPD), using conventional laboratory data. The results show that architecturally different coordination polymers were obtained depending on the counter-ion employed. The XRPD results show also that non-covalent interactions are driving forces for the occurrence of different structures.

Graphical abstractCobalt, nickel, copper and cadmiun coordination polymers containing the flexible ditopic Btm ligand have been prepared and structurally characterized by X-ray powder diffraction methods.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► New coordination polymers containing the ditopic Btm ligand have been prepared. ► X-ray powder diffraction methods have been used in unraveling the crystal structures. ► The title compounds were studied by TGA and magnetic susceptibility measurements. ► Reactivity toward NH3 and H2O was investigated.