Synthesis and properties of a new (3,8)-connected pillar-layered Co(II)-based coordination polymer supported by tetranuclear secondary building units (SBUs)

A three-dimensional (3D) pillar-layered Co(II)-based coordination polymer [Co2(L)(bipy)(OH)(H2O)]n·nCH3CN (1) via the mixed ligand approach, where H3L is 2-(2′,4′-dicarboxylphenoxy)benzoic acid and bipy is 4,4′-bipyridine. Complex 1 shows a (3,8)-connected tfz-d topology based on the tetranuclear Co(II) SBUs, and the magnetic measurements indicate the antiferromagnetic interaction within the neighboring Co(II) ions.