Two Magnetic 2D Inorganic–Organic Hybrid Framework Materials Constructed by Phosphotungstates

Abstract

Two magnetic 2D inorganic–organic hybrid phosphotungstates, K2(H2dap)4[Cu(dap)2]{Cu(A-α-PW9O34)2[Cu(dap)]2}·6H2O (1) and [Cu(dap)2]H2{Cu[Cu(dap)Cu(dap)2(A-α-PW9O34)]2[Cu(dap)]2}·4H2O (2) (dap = 1,3-diaminopropane) have been synthesized and well-characterized. Both 1 and 2 show a 2D layer-like framework with the (4, 4)-connected topological network based on 1D sinusoidal chain-like structure. The studies of magnetic properties indicate that 1 and 2 are indicative of a typical antiferromagnetic coupling between Cu2+ cations.