Citation: Molina-Muriel, Ricardo; Aragay, Gemma; Escudero-Ad\'an, Eduardo C; Ballester, Pablo (2018). Switching from Negative-Cooperativity to No-Cooperativity in the Binding of Ion-Pair Dimers by a Bis(calix[4]pyrrole) Macrocycle.. The Journal of organic chemistry, 83, pp. 13507-13514.