Helicene-type compounds are renowned for their unique chiral properties,however,obtaining their enantiomers usually requires laborious and costly chiral separations.Moreover,their chiroptical activity is typically lim...Helicene-type compounds are renowned for their unique chiral properties,however,obtaining their enantiomers usually requires laborious and costly chiral separations.Moreover,their chiroptical activity is typically limited to the ultraviolet spectral range,which restricts their broader applicability.To overcome these limitations,a novel and efficient strategy for synthesizing optically active compounds through the incorporation of an optically pure binaphthol(BINOL)group onto the periphery of β-isoindigo based aza dipyrrometheneboron difluoride(aza-BODIPY)analogues(BIABs)was presented.The resulting(R)/(S)-BINOL-BIABs demonstrate exceptional photostability,deep-red emission,strong Cotton effect(Δε)and high absorbance dissymmetry factor(g_(abs)).Moreover,tunable circularly polarized luminescence(CPL)with high brightness in the deep-red region was achieved.This strategy offers straightforward procedures for synthesizing optically active compounds.展开更多
文摘Helicene-type compounds are renowned for their unique chiral properties,however,obtaining their enantiomers usually requires laborious and costly chiral separations.Moreover,their chiroptical activity is typically limited to the ultraviolet spectral range,which restricts their broader applicability.To overcome these limitations,a novel and efficient strategy for synthesizing optically active compounds through the incorporation of an optically pure binaphthol(BINOL)group onto the periphery of β-isoindigo based aza dipyrrometheneboron difluoride(aza-BODIPY)analogues(BIABs)was presented.The resulting(R)/(S)-BINOL-BIABs demonstrate exceptional photostability,deep-red emission,strong Cotton effect(Δε)and high absorbance dissymmetry factor(g_(abs)).Moreover,tunable circularly polarized luminescence(CPL)with high brightness in the deep-red region was achieved.This strategy offers straightforward procedures for synthesizing optically active compounds.
