Asymmetrical fluorene[2,3-b]benzo[d]thiophene derivatives: Synthesis, solid-state structures, and application in solution-processable organic light-emitting diodes
A series of novel asymmetrical fused compounds containing the backbone of fluorene[2,3-b]benzo[d]-thiophene (FBT) were effectively synthesized and fully characterized. Single-crystal X-ray studies demonstrated that the length of the substituent side chain