1 Centre Interdisciplinaire de Nanoscience de Marseille (CINaM), UPR 3118 CNRS Aix-Marseille Universite, Campus de Luminy, case 913, F-13288 Marseille, Cedex 09, France.
Novel nitrogen-bridged aza[1(4)]cyclophanes with fine-tuned cavities have been synthesized by nucleophilic aromatic substitution of 1,5-difluoro-2,4-dinitrobenzene with diaminobenzene derivatives.