Conjugated Polymer Sensors Built on π-Extended Borasiloxane Cages
Citations Over TimeTop 10% of 2009 papers
Abstract
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,pi]-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-pi* orbital overlap.
Related Papers
- → Conjugated polymers containing benzo- and naphthodione units in the main chain(2014)21 cited
- → Dithieno[a,e]pentalene Based Conjugated Polymers: Synthesis and Characterization(2013)10 cited
- → C−C Coupling Reactions for the Synthesis of Two‐Dimensional Conjugated Polymers(2020)4 cited
- → Toward the alignment of conjugated polymers into anisotropically-ordered structure(2007)12 cited
- → Two-Dimensional Alignment of Conjugated Polymers(2013)