Phase-tunable fluorophores based upon benzobis(imidazolium) salts.
A new series of highly photoluminescent benzobis(imidazolium) salts with tunable electronic and physical properties is described. Systematic structural manipulations provided a set of materials that were not only fluorescent in the condensed state but also displayed tunable glass transition temperatures ranging from -0.3 to 113 degrees C. Upon heating, these robust materials flowed while maintaining their emissive properties. Further phase tuning was demonstrated through the synthesis of two thermotropic liquid-crystalline fluorescent benzobis(imidazolium) salts.
Boydston
Andrew J
AJ
Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712, USA.
Pecinovsky
Cory S
CS
Chao
Steven T
ST
Bielawski
Christopher W
CW