The
development of small organic CPL-active molecules with large
luminescent dissymmetry factors is highly demanded due to their promising
applications in chiroptical devices and sensors. This work describes
the design and synthesis of a new family of CPL-active BF2 complexes, (R
p)/(S
p)-3a–3e, which were constructed
by fusing a N̂O-chelated BF2 complex with [2.2]paracyclophane.
These complexes display aggregation-amplified CPL with moderate dissymmetry
factors values and moderate quantum yields both in solution and in
the solid state. In addition, these photophysical properties were
rationalized via X-ray diffraction and TD-DFT calculations.
Planar chiral [2.2]paracyclophanyl-based boron fluoride complexes (3a-3d) were designed and facile synthesized. X-ray structure study, theoretical calculations and CD spectra reveal the intense emission and planar chiral structure of these...
Axially chiral 1,4-dihydropyridine derivatives ((R)-/(S)-2) with aggregation-induced emission (AIE) in exciplex were designed and synthesized. They have excellent CD signals and can determine the different viscosity in mixed solvents.
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