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• W2884244562 endingPage "14274" @default.
• W2884244562 startingPage "14269" @default.
• W2884244562 abstract "Abstract 2,3,4,5‐Tetraphenyl‐1 H ‐pyrrole ( TePP ) was synthesized by a simple one‐step reaction. The compound showed a balanced emission in both the solution and solid state with the absolute quantum yield of Φ F/THF =65.6 % and Φ F/solid =74.3 %, respectively. Temperature and viscosity variation measurements demonstrated that the phenyl group at the 1‐position ( N ‐position) of the pyrrole core can act as a rotor in pyrrole‐based molecules, which can consume the excited energy and reduce the molecular emission in solution. TePP without the phenyl group at the 1‐position can effectively enhance the emission in solution. Single‐crystal analysis showed that the phenyl groups at the 2,5‐positions of pyrrole extend the molecular conjugation and lock the conformation. The phenyl groups at the 3,4‐positions with a twisted conformation prevent their molecules from close packing and are helpful for aggregated emission. A delicate balance between the twisting conformation and rigid conjugation takes advantage of both ACQ and AIE luminogens. The strategy can tune the AIE, ACQ, or solution and solid dual‐state emission properties of pyrrole‐based molecules by simply altering the position of phenyl groups, which provides a great opportunity to explore the luminescent mechanism in greater detail and to facilitate practical applications." @default.
• W2884244562 created "2018-08-03" @default.
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• W2884244562 date "2018-08-28" @default.
• W2884244562 modified "2023-10-14" @default.
• W2884244562 title "The Dual‐State Luminescent Mechanism of 2,3,4,5‐Tetraphenyl‐1<i>H</i>‐pyrrole" @default.
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• W2884244562 doi "https://doi.org/10.1002/chem.201803080" @default.
• W2884244562 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30014523" @default.
• W2884244562 hasPublicationYear "2018" @default.
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