Head-to-Tail Assemblies of Dipolar, Piperazine-Linked Chromophores: Synthesis, X-ray Structure, and Dielectric Characterization

Article abstract of DOI:10.1021/ja00201a042

A dimer and a mixture of oligomers of acceptor-substituted anilines were prepared, either by Knoevenagel condensation of substituted cyanoacetylpiperazines with p-aminobenzaldehydes or by carbonyldiimidazole-promoted coupling of phenylpiperazines with p-a