Rational Design and X-ray Molecular Structure of the First Irido-Cryptand and Encapsulation of a Tetrafluoroborate Anion The CNRS and UPMC are gratefully acknowledged for supporting this work. We thank Prof. D. Davoust and Dr. E. Condamine (IRCOF-Université de Rouen, France) for carrying out the special 13C{19F} NMR experiments on a 600 MHz Bruker instrument equipped with a TXO probe 13C/19F,1H.