Lakshmi, V.Haketa, Y.Sato, R.Shigeta, Y.Maeda, H.2026-02-032025Journal of Organic Chemistry, 2025, 90, 26, pp. 8879-8885223263https://doi.org/10.1021/acs.joc.5c00482https://idr.nitk.ac.in/handle/123456789/20186Dipyrromethane dimers linked via a boron-bridged 1,3-propanedione moiety exhibited efficient anion-binding abilities. Trifluoromethyl and pentafluorophenyl moieties substituted at the meso positions of dipyrromethane induced chirality in the ?-electronic systems, whose conformations were controlled by anion binding. Anion complexes of the oligopyrrole-based chiral ?-electronic systems exhibited anion-dependent chiroptical properties, as seen in circular dichroism. © 2025 American Chemical Society.Negative ionsAnion complexAnion-bindingBinding abilitiesChiroptical propertiesDipyrromethanesElectronics systemInduced chiralityMeso positionsOligopyrrolesTrifluoromethylDichroismanionborondimerdipyrromethanemethanepyrrole derivativeunclassified drugArticlechiralitycircular dichroismcomplex formationconformational transitioncontrolled studyoptical rotationstereochemistrysynthesis