Abstract
A new lanthanide-substituted polyoxometalate [(α-PW11O39)Ce(H2O)2]4− (1) has been synthesized in aqueous solution and characterized by elemental analysis, IR spectrum, UV spectroscopy, thermogravimetric analysis, X-ray powder diffraction (XRPD), and single-crystal X-ray diffraction. The structural analysis reveals that 1 consists of monovacant Keggin-type polyoxoanions [α-PW11O39]7− as the fundamental building blocks and four [(CH3)4 N]+ cations. Compound 1 exhibits a 1-D zigzag chain built by [(α-PW11O39)Ce(H2O)2]4− moieties. The electrochemical properties of 1 were investigated by cyclic voltammetry in aqueous solution with 0.5 mol L−1 Na2SO4 as the supporting electrolyte. Magnetic measurements reveal that 1 demonstrates spin–orbital coupling interactions and weak antiferromagnetic exchange interactions.
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