Synthesis, structure and magnetic properties of heterometallic coordination polymers constructed from Cu (II)/Mn (II), H2bdc and H4btec

Three novel heterometallic coordination polymers [(CuLH2O)2MnCuL](ClO4)2 (1), [CuLMn(bdc0.5)2(H2O)] (2) and [CuLMn(btec)0.5EtOH] (3) have been synthesized using the mononuclear ligand CuL (H2L = 2,3-dioxo-5,6:13,14-dibenzo-7,10,12-trimethyl-1,4,8,11-tetraazacyclo-tetradeca-7,12-diene; H2bdc = p-phthalic acid; H4btec = 1,2,4,5-benzenetetracarboxylic acid) as a precursor. Single-crystal X-ray diffraction reveals that the configuration of complexes 1-3 is tetranuclear compound with connectivity 0D, one-dimensional (1D) chain and two-dimensional (2D) layer, respectively. Moreover, the magnetic properties of complex 1 were investigated.