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

Abstract A high nuclear lanthanide-containing polyoxometalate aggregate {[(CH 3 ) 3 N(CH 2 ) 2 OH] 2 (NH 4 ) 12 }[Ce 4 (Mo 4 )(H 2 O) 16 (Mo 7 O 24 ) 4 ]·8H 2 O 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.