Frontispiz: The Parent Cyclopentadienyltin Cation, Its Toluene Adduct, and the Quadruple‐Decker [Sn3Cp4]2+. (6th March 2017) - Schleep, Mario; Hettich, Clarissa; Velázquez Rojas, Jennifer; Kratzert, Daniel; Ludwig, Thilo; Lieberth, Katharina; Krossing, Ingo