Liu, Wenjun Pink, Maren Lee, Dongwhan Conjugated Polymer Sensors Built on π-Extended Borasiloxane Cages An efficient 2 + 2 cyclocondensation with dihydroxysilane converted simple arylboronic acids to bifunctional borasiloxane cage molecules, which were subsequently electropolymerized to furnish air-stable thin films. The extended [p,π]-conjugation that defines the rigid backbone of this new conjugated polymer (CP) motif gives rise to longer-wavelength UV−vis transitions upon oxidative doping, the spectral window and intensity of which can be modified by interaction with Lewis basic reagents. Notably, this boron-containing CP undergoes a rapid and reversible color change from green to orange upon exposure to volatile amine samples under ambient conditions. This direct naked-eye detection scheme can best be explained by invoking the reversible B−N dative bond formation that profoundly influences the p−π* orbital overlap. polymer;arylboronic acids;motif;detection;transition;intensity;dihydroxysilane;film;Extended;overlap;influence;scheme;electropolymerized;2 cyclocondensation;Borasiloxane;amine samples;oxidative doping;reagent;Conjugated Polymer Sensors;ambient conditions;CagesAn;CP;bifunctional borasiloxane cage molecules;exposure;interaction;Lewis;UV;color change;formation;bond 2009-06-24
    https://acs.figshare.com/articles/dataset/Conjugated_Polymer_Sensors_Built_on_Extended_Borasiloxane_Cages/2848051
10.1021/ja902333p.s002