Luminescent lanthanide (Ln) complexes based on chelate effects will be introduced using a series of hexadentate bipyridine derivatives as their ligand moieties. The molecules form a single helicate molecular structure with a Ln-coordination. Molecular distortion and various derivations induce the intended luminescence and characteristic molecular conformation, which depend on atmosphere or media. It would be a supportive case to design novel units of Ln components for emission.