789
Synthesis, Isolation and Characterization of Two Isomers of Dy2O@C82

Tuesday, 15 May 2018
Ballroom 6ABC (Washington State Convention Center)
W. Yang, J. Zhuang, Y. Shi, and N. Chen (Soochow University)
Recent theoretical studies predicted that the magnetic properties of Dy2O@C82 may be superior than any other clusterfullerenes decovered so far, but the synthesis and characterization have never been reported. Here, we report that the clusterfullerenes Dy2O@C82 have been synthesized by arc-discharging method with graphite rods packed with graphite powder and metal oxide(Dy2O3) under a He/CO2(8:1) atmosphere. Two isomers of Dy2O@C82 endohedral fullerene have been isolated and purified by high performance liquid chromatography by multistage separation on different columns. The purified Dy2O@C82 were characterized by mass spectrometry, UV-Vis-NIR absorption spectroscopy. One isomer shows large resemblance to those of previously reported metallic fullerenes, such as Er2@Cs-C82, Sc2O@Cs-C82, and another one is similar to Y2C2@C3v-C82. This work will lead to the detailed study of the unique molecule magnetic properties of dysprosium-based oxide cluster fullerenes and their potential of application in high density information storage, quantum calculation and spintronics.