A new polyoxometalate,formulated [HN(C2H5)3]3[N(C2H5)3]2[PW12O40]·2H2O(1) has been hydrothermally synthesized.Single crystal X-ray diffraction analysis shows that structure-directing template effect of inorganic anions play an important role in the self-organization process of these subunits.Compound 1 has been characterized by elemental analysis,IR,TG,UV,TG-DTG,XRD and electrochemical research.