Efficient synthesis and characterization of novel bibenzimidazole oligomers and polymers as potential conjugated chelating ligands.

Jun Yin, Ronald L Elsenbaumer

文献索引：J. Org. Chem. 70(23) , 9436-46, (2005)

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摘要

[Structure: see text]. A simple and mild condensation route for the synthesis of novel bibenzimidazole oligomers and polymers is reported here using methyl 2,2,2-trichloroacetimidate as a key starting material. The dimer, trimer, tetramer, and polymers of bibenzimidazole were synthesized as a new series of potential conjugated chelating ligands for metallopolymer studies. The polymers show a maximum absorption at around 400 nm. The optical band gap of the polymer was estimated to be 2.68 eV.