Functionalized fluorenones/fluorenes are generally synthesized via cross-coupling reactions. Described here is the modification of the fluorene/fluorenone core via a C–H functionalization tactic and augmentation of the fluorenes/fluorenones library.
The newly developed fluorenone-based donor–acceptor–donor triads formed supramolecular organogels in appropriate solvents. The stimuli-responsive behaviours in solution as well as in supramolecular gels of the fluorenone derivatives were clarified.
Two one-step-synthesized ligands, one chiral and one emissive, assemble with PdII into a heteroleptic cage that shows enhanced CPL.
A pair of pyridine based fluorenone derivatives with highly efficient second- and third-order nonlinear optical effects have been synthesized.
A fluorenone-based trigonal barrel (M1) showed a C70-induced transformation to a tetragonal barrel (M2), forming (C70)3@M2 that catalyzed the oxidative photolysis of alkenes under red light, demonstrating a green approach to mimic alkene ozonolysis.