Purification of Uranium‐based Endohedral Metallofullerenes (EMFs) by Selective Supramolecular Encapsulation and Release

We acknowledge financial support from GenCat (2017 SGR 264 and 2017 SGR 629) and MINECO‐Spain (CTQ2016‐77989‐P and CTQ2017‐87269‐P). L.E. thanks the US National Science Foundation (NSF) for generous support of this work under the NSF‐PREM program (DMR‐1205302) and CHE‐1408865. The Robert A. Welch Foundation is also gratefully acknowledged for an endowed chair to L.E. (Grant AH‐0033). ICN2 acknowledges the support of the Spanish MINECO through the Severo Ochoa Centers of Excellence Program under Grant SEV‐2013‐0295. X.R. and J.M.P. are also grateful to ICREA foundation for ICREA‐Academia awards. We acknowledge Prof. M. Costas for helpful discussions. F.G. acknowledges MINECO for funding through the “Ramon y Cajal” program.