*3.1. Synthesis of Acridine Dendrimer*

To obtain a polypropylene imine dendrimer modified with acridine fluorophores, we used a second-generation dendrimer containing eight primary amino groups in its periphery, thus enabling eight acridine fragments to be coupled into one molecule. Fully functionalized acridine dendrimer (ACR) was obtained in a moderate yield by modification of a previously described procedure, [25] as depicted in Scheme 1. As the acridine dendrimer was obtained as a protonated species in the reaction medium, the solid was dissolved in water/NH4OH (pH 8) wherefrom it was extracted in its neutral form. The copper complex, [Cu2(ACR)(NO3)2], was subsequently synthesized easily by a reaction run in ethanol at room temperature.

**>&X\$&512@**

**Scheme 1.** Synthesis of acridine dendrimer (ACR) dendrimer.
