The transition from two-fold to one-fold G3coordinated states by adding salt to the system can be inferred from the strong decrease in the average end-to-end distances by adding the salt as summarized in Figure . At very low salt ratios, the overall average end-to-end distance has mainly contributions from free, mostly linear G3 molecules due to the oversupply of solvent molecules. At the 1:4 mixture of salt and G3, the average distance resembles the distance of the (two-fold) coordinated molecules. Finally, for the equimolar mixture, the shortest end-to-end distances are found. Here, all G3 Scheme 2: Schematic representation of the crown-ether-like confirmation of G3 fully surrounding a cation and, thereby, leading to very short end-to-end distances of the G3 molecule. molecules are, on average, integrated into a onefold coordination complex with almost ideally circle-like shapes of the G3 molecules resembling crown ethers.