Changing the binding-motif from a pincer carrying urea-groups to amides was expected to give lower binding due to the fewer possible hydrogen bonds, and in order to gain binding-strength units capable of - interactions should be present in both host and guest. These considerations lead to the design shown in figure based on the presence of a salt-bridge, hydrogen-bonding between amides in the host and guest as well as possible π-π interactions between the end-group on the guest and the phenothiazine units on the dendrimer.