Cyclam-cored dendrimers appended with four dendrons of two different types: intradendrimer energy transfer.

We have synthesized two cyclam-cored dendrimers appended with dendrons of two different types by proper protection/deprotection of the cyclam unit. The resulting dendrimers contain six naphthyl and two dansyl units (N6 D2) or two dansyl and six naphthyl units (N2 D6) at the periphery. Their photophysical properties have been compared to those of a dendrimer containing 8 dansyl units (D8) and a previously investigated dendrimer containing 8 naphthyl units (N8).