Temperature‑, Concentration‑, and Solvent-Dependent <i>M</i>/<i>P</i> Helicity Switching of Double-Helical Monometallofoldamers with Inversion of Circularly Polarized Luminescence.

ABSTRACT: Fluorescent double-helical monometallofoldamers [Ag-(1)₂]-[PF₆] were constructed by the mononuclear complexation of two bipyridine strands 1 featuring two L-shaped dibenzopyrrolo-[1,2-a]-[1,8]-naphthyridine units at both ends with a Ag-(I) cation. These monometallofoldamers exhibited double-helical/open conformational switching. [(R)-Ag-(1c)₂]-[PF₆] with chiral side chains induced a single-handed helix sense and enabled precise control of M/P helicity switching in response to a solvent. This complex also exhibited strong fluorescence and circularly polarized luminescence (CPL) inversion switching upon M/P helicity inversion. For instance, [(R)-Ag-(1c)₂]-[PF

SUBMITTER: Matsumura K 

PROVIDER: S-EPMC12933351 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature