A high nuclear lanthanide-containing polyoxometalate aggregate synthesized in choline chloride/urea eutectic mixture

A high nuclear lanthanide-containing polyoxometalate aggregate {[(CH3)3N(CH2)2OH]2(NH4)12}[Ce4(Mo4)(H2O)16(Mo7O24)4]·8H2O has been successfully synthesized in choline chloride/urea eutectic mixture. This method in synthesizing this anti-HIV activity aggregate has the advantages of convenience, facility, saving time and absence of additional noxious organic reagents. It has been characterized by XPS, IR, UV–vis spectra, TG analyses, power X-ray diffraction and single crystal X-ray diffraction. The CV property of the compound has also been tested.