349669-77-8Relevant academic research and scientific papers
New core-pyrene π structure organophotocatalysts usable as highly efficient photoinitiators
Telitel, Sofia,Dumur, Frederic,Faury, Thomas,Graff, Bernadette,Tehfe, Mohamad-Ali,Gigmes, Didier,Fouassier, Jean-Pierre,Lalevee, Jacques
, p. 877 - 890 (2013)
Eleven di- and trifunctional compounds based on a core-pyrene π structure (Co-Py) were synthesized and investigated for the formation of free radicals. The application of two- and three-component photoinitiating systems (different Co-Pys with the addition of iodonium or sulfonium salts, alkyl halide or amine) was investigated in detail for cationic and radical photopolymerization reactions under near-UV-vis light. The proposed compounds can behave as new photocatalysts. Successful results in terms of rates of polymerization and final conversions were obtained. The strong MO coupling between the six different cores and the pyrene moiety was studied by DFT calculations. The different chemical intermediates are characterized by ESR and laser flash photolysis experiments. The mechanisms involved in the initiation step are discussed, and relationships between the core structure, the Co-Py absorption property, and the polymerization ability are tentatively proposed.
Distinct electroluminescent properties of triphenylamine derivatives in blue organic light-emitting devices
Lai, Shiu-Lun,Tong, Qing-Xiao,Chan, Mei-Yee,Ng, Tsz-Wai,Lo, Ming-Fai,Lee, Shuit-Tong,Lee, Chun-Sing
, p. 1206 - 1211 (2011)
Two highly fluorescent triphenylamines (TPA) end-capped respectively with one and three pyrene arms, namely N,N-diphenyl-4-(pyren-1-yl)aniline (PyTPA) and 4,4′,4′′-trispyrenylphenylamine (TPyPA), have been designed, synthesized and applied as hole-transpo
