Zinc(II) and cobalt(II) complexes with 3,5-di(pyridine-4-yl)benzoate: Structure and property

Two new metal complexes with different 2D network topologies based on the 3,5-di(pyridine-4-yl)benzoic acid (HL), namely {[Zn(L)2]∙0.86H2O}n (1) and {[Co2(L)3(H2O)2]ClO4}n (2), have been prepared and characterized by single crystal and powder X-ray diffractions, IR, and thermogravimetric analyses. Complex 1 has a typical sql topology, whereas complex 2 is an unusual hxl one. Moreover, complex 1 shows luminescent property in the solid state at room temperature, and 2 exhibits overall weak antiferromagnetic coupling between the adjacent Co(II) ions.

Graphical abstractTwo new complexes {[Zn(L)2]∙0.86H2O}n (1) and {[Co2(L)3(H2O)2]ClO4}n (2) [HL = 3,5-di(pyridine-4-yl)benzoic acid] with different network topologies were prepared and characterized.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Two-dimensional coordination frameworks with different structures and topologies. ► Different coordination modes of ligand. ► Fluorescence property and magnetic property.