One-pot Synthesis of Room Temperature Phosphorescent Boron-difluoride Derivative for Printing
Pure organic room-temperature phosphorescent(RTP)materials have been under wide investigation due to their various potential applications.Till now,most reported organic RTP materials emit robust RTP in crystalline state,but lose RTP properties during the solution processing.Here,a boron-difluoride derivative bearing multiple methoxy group(BF2-tPMO)was synthesized through a one-pot two-step reaction.The existence of multiple methoxy groups helped to construct effective intermolecular non-covalent interactions,as revealed by X-ray single crystal structure.These intermolecular non-covalent interactions might help to alleviate molecular motions to increase emission efficiency,and also help to maintain its crystalline nature during the evaporation of organic solutions to keep its RTP character.Our experimental results indicate that BF2-tPMO maintained its RTP properties after solution processing,providing an effective strategy for designing RTP materials with convenient manipulation.
Boron-difluorideRoom temperature phosphorescenceOne-pot synthesisIntermolecular interaction
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