682345-43-3Relevant academic research and scientific papers
Porphyrins with Four Monodisperse Oligofluorene Arms as Efficient Red Light-Emitting Materials
Li, Binsong,Li, Jing,Fu, Yaqin,Bo, Zhishan
, p. 3430 - 3431 (2004)
A family of red light-emitting star-shaped porphyrins with four monodisperse conjugated oligofluorene arms was prepared by using two key reactions: Lindsey condensation and Suzuki?Miyaura cross coupling reactions. All porphyrins exhibit high quantum yields (about 0.22) and good solubility in common organic solvents, and form high-quality solid films. Optical studies showed that the star-shaped oligomers could absorb blue light and emit saturated red light via efficient energy transfer from the fluorene segments to the porphyrin core. Copyright
Self-host yellow iridium dendrimers based on carbazole dendrons: synthesis, characterization and application in solution-processed organic light-emitting diodes
Wang, Bin,Shao, Shiyang,Ding, Junqiao,Wang, Lixiang,Jing, Xiabin,Wang, Fosong
, p. 1593 - 1599 (2016)
On the basis of different generation carbazole dendrons, a series of self-host yellow Ir dendrimers (Y-G0, Y-G1 and Y-G2) have been successfully synthesized and characterized in detail. It is found that the peripheral dendrons can effectively reduce the intermolecular interactions between emissive Ir cores, as verified by the increased photoluminescence quantum yields and film lifetimes. Among these dendrimers, Y-G2 bearing the second generation dendrons shows the best non-doped device performance, revealing a peak luminous efficiency of 20.2 cd/A. The value is nearly twice that of Y-G0 without any dendrons, which could be further improved to 32.1 cd/A by dispersing Y-G2 into a host matrix. We believe that this work will shed light on the development of highly efficient yellow phosphorescent dendrimers with a self-host strategy.
Detection and identification of alkylating agents by using a bioinspired "chemical nose"
Hertzog-Ronen, Carmit,Borzin, Elena,Gerchikov, Yulia,Tessler, Nir,Eichen, Yoav
supporting information; scheme or table, p. 10380 - 10386 (2010/04/25)
Alkylating agents are simple and reactive molecules that are commonly used in many and diverse fields such as organic synthesis, medicine, and agriculture. Some highly reactive alkylating species are also being used as blister chemical-warfare agents. The
Porphyrin compositions
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, (2008/06/13)
Novel metal porphyrin compositions useful as organic phosphors are provided. The novel compositions are prepared from commercially available porphyrin-containing starting materials. In one instance a novel palladium-containing porphyrin composition having a number average molecular weight of greater than 12,000 grams per mole was prepared from 5,10,15,20-tetrakis(3′,5′-di(hydroxy)phenyl)-21H-23H-porphyrin by reaction first with palladium(II) acetylacetonate, followed by reaction with 2-bromo-2-methylpropionyl bromide, and subsequent group transfer reaction of the alpha-bromo ester groups with 9,9-dioctyl-2-vinylfluorene in the presence of CuBr as a radical initiator. The product polymer exhibited a number average molecular weight of 12,884 grams per mole, a weight average molecular weight of 14,338 grams per mole, and a robust red phosphorescent emission. Porphyrin containing copoylmers comprising structural units derived from 9,9-dioctyl-2-vinylfluorene and 9-anthracenylmethyl methacrylate were prepared in a similar fashion.
