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Abstract

Due to the rich coordination chemistry of terpyridine ligand in the catalysis, the developing appropriate methods for modular synthesis of new C₂-symmetric chiral terpyridine-type ligands from simple materials are highly desirable and remain a formidable challenge. Herein, we developed a new class of C₂-symmetric chiral terpyridine ligands (TPy-BPI). Our work is the first report showing that the terpyridine framework contained only two nitrogen atoms coordinating with the metal, and the additional pyridine unit only acted as stereodirecting element, which is different from the previously reported terpyridine ligands containing all three nitrogen atoms coordinating with the metal. More details are discussed in the article by Liu et al. on pages 599—606.