Upon mixing the dendrimer with the guest molecules changes in chemical shift for some of the protons in the dendrimer was observed. Figure shows the details from the NOESY spectrum obtained from the guest-host complex 2, clearly showing - interaction between the 4nitrophenyl part of the guest and the phenothiazines on the dendrimer. The dendrimer was subsequently titrated with the various guests, and figure shows the titration curves for titration of the dendrimer with host 2 monitoring the protons c and d (shown in figure ) in the dendrimer and the guest.