Cation–π interaction: a case for macrocycle–cation π-interaction by its ureidoarene counteranion
Abstract
We report the solid state structures of homocomplex [1·K]+[I]− and of heterocomplexes [1·K]+[3·I]− and [1·K]+[4·I]. In the [1·K]+[I]− complex the apical position of the K+ in the