An inorganic–organic hybrid compound built from polyoxovanadate cluster and Mn (II) complexes

A novel inorganic–organic hybrid compound [Mn(teta)][Mn(teta)(H2O)2]2{V18O42(Cl)}·8H2O (1) (teta: triethylenetetramine) has been hydrothermally synthesized and characterized by TGA, IR and XPS analysis. Its structure is determined by single-crystal X-ray diffraction analysis. Compound 1 exhibits a rare 2-D planar square lattice (sql net), which was constructed by the well known {V18O42} cluster as node and two distinct Mn (II) complexes, [Mn(teta)] and [Mn(teta)(H2O)2], as single/double μ2-bridging linkers. This type sql net with two distinct Mn (II) complexes is the first example found in polyoxovanadates. The magnetic study shows that there exists antiferromagnetic interaction within 1.