Actinide Endohedral Metallofullerenes (EMFs) represent a poorly explored and potentially useful branch of EMF chemistry. Recently there have been successes in producing mono and di-uranium EMF species¹ but no mixed metal uranium-based endohedral fullerenes have been reported. The incorporation of scandium oxide and reactive gases such as NH₃, CH₄ and H₂ in the Krästschmer – Huffmann modified DC Arc Discharge synthesis method allowed us to significantly increase the yield of two specific mixed metal EMF including a carbide and a nitride di-scandium uranium clusters. The synthesis, isolation and fully characterization of the Sc₂UC@C₈₀ and Sc₂UN@C₈₀ compounds will be reported in this work.

¹ W. Cai, R. Morales-Martinez, X. Zhang, D. Najera, E. L. Romero, A. Metta-Magana, A. Rodriguez-Fortea, S. Fortier, N. Chen, J. M. Poblet and L. Echegoyen, Chem. Sci., 2017, 8, 5282-5290.