%0 Generic %A Maeda, Hiromitsu %A Bando, Yuya %A Shimomura, Konomi %A Yamada, Ippei %A Naito, Masanobu %A Nobusawa, Kazuyuki %A Tsumatori, Hiroyuki %A Kawai, Tsuyoshi %D 2011 %T Chemical-Stimuli-Controllable Circularly Polarized Luminescence from Anion-Responsive π-Conjugated Molecules %U https://acs.figshare.com/articles/dataset/Chemical_Stimuli_Controllable_Circularly_Polarized_Luminescence_from_Anion_Responsive_Conjugated_Molecules/2639857 %R 10.1021/ja203206g.s002 %2 https://ndownloader.figshare.com/files/4291777 %K CPL %K anion binding %K chemical stimuli %K molecules results %K pyrrole rings %K Conformation changes %K chiroptical properties %K chiral environment %K anion receptors %K BINOL %X Introduction of a BINOL–boron moiety to dipyrrolyldiketones as precursors of anion-responsive π-conjugated molecules results in the formation of a chiral environment in the form of anion-free receptors and anion-binding complexes. Conformation changes by inversion (flipping) of two pyrrole rings as a result of anion binding can control the chiroptical properties of the anion receptors. In particular, appropriate pyrrole β-substituents induce distorted receptor π-planes and, as a result, give larger circularly polarized luminescence (CPL), which can be tuned by chemical stimuli (anions). This is the first example of chemical-stimuli-responsive CPL properties. %I ACS Publications