A new manganese(II) coordination polymer constructed with 5.5′-(benzene)-1,4-diyl)-bis(oxy) diterphthalic acid: synthesis, structure analysis and magnetic properties

A new 2D manganese(II) coordination polymer, namely [Mn(L)0.5(2,2′-bipy)]n·nH2O (1), has been constructed hydrothermally based on manganese acetate and the mixed ligands including the 5.5′-(benzene)-1,4-diyl)-bis(oxy) diterphthalic acid (H4L) and auxiliary 2,2′-bipyridine (2,2′-bipy). The compound was characterized by elemental analyses, was characterized by elemental analysis, infrared spectrum and single-crystal and powder X-ray diffractions, and thermal analyses. Single-crystal X-ray diffraction analyses revealed that compound 1 crystallize in the triclinic system, space group P-1. The adjacent Mn(II) ions are bridged by µ6-L4− ligands, producing a 2D layer. Magnetic studies for compound 1 demonstrate an antiferromagnetic coupling between the adjacent Mn(II) centers.