Reference of 21436-03-3, Chemistry can be defined as the study of matter and the changes it undergoes. You’ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.21436-03-3, Name is (1S,2S)-Cyclohexane-1,2-diamine, molecular formula is C6H14N2. In a patent, introducing its new discovery.
The construction of new and efficient chiral TADF materials with red emission and the exploration of their applications in OLED devices still remain a great challenge for the difficulty in molecular design and low efficiency of devices. In this work, we synthesized a couple of 1,8-naphthalimide-based enantiomers (?)-(R,R)-CAI-DMAC and (+)-(S,S)-CAI-DMAC. The enantiomers not only exhibit high thermal stability with decomposition temperature of 405 C, excellent electrochemical properties, and good thermally activated delayed fluorescence (TADF) properties with small DeltaEST of 0.07 eV, but also show obvious mirror-image circular dichroism and circularly polarized luminescence properties. Moreover, by using (?)-(R,R)-CAI-DMAC and (+)-(S,S)-CAI-DMAC as emitters, the OLEDs with the bands both centred at 592 nm achieved high maximum external quantum efficiency of 12.4% and 12.3%, respectively.
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