Two new coordination polymers employing 2,2′-bipyridine-3,3′,6,6′-tetracarboxylate as a ligand

•Two new polymeric manganese(II)/copper(II) complexes were synthesized.•Thermogravimetric studies show stepwise decomposition patterns.•Magnetic properties studies show weak antiferromagnetic interactions in both compounds.•Magnetic interactions are transmitted in carboxylate-bridged chains.

Two new coordination polymers employing 2,2′-bipyridine-3,3′,6,6′-tetracarboxylate (bptc) as a ligand are presented: [Mn2(H2O)5(bptc)]n (1) and [Cu2(H2O)2(bptc)]n·2nH2O (2). 1 is a 2D coordination polymer stabilized by Mn–O coordination bonds, where magnetic interactions are transmitted within carboxylate-bridged chains. 2 forms polymeric double chains. 1 and 2 are characterized by X-ray diffraction studies, IR spectra, elemental analysis and TGA. Magnetic properties measurements show weak antiferromagnetic coupling of the metal ions in both compounds.

Graphical abstractSynthesis and properties of two new manganese(II)/copper(II) coordination polymers employing 2,2′-bipyridine-3,3′,6,6′-tetracarboxylate as a ligand are presented.Figure optionsDownload full-size imageDownload as PowerPoint slide