Polyoxometalates (POMs) have large numbers of structural diversity and various applications in different areas, including optics, magnetism, catalysis, medicine and biology. One new compound has been synthesized and characterized by single crystal X-ray analysis, IR spectra, thermal gravimetric analysis, electrochemical and elemental analysis. The crystals of compound 1 are monoclinic, C2/c, a = 27.2298(11) (A), b =16.1690(11)( A), c = 30.7249(15) (A),β = 107.2540(10) °, V =12918.8(12) (A)3, Z = 4.