25308-69-4Relevant academic research and scientific papers
Synthesis of axially chiral 1,8-diarylnaphthalene ligands and application in asymmetric catalysis: An intriguing fluorine effect
Ghosh, Harisadhan,Vavilala, Ravishashidhar,Szpilman, Alex M.
, p. 79 - 84 (2015/02/19)
A fluorinated and a non-fluorinated axially chiral 1,8-diarylnaphthalene ligand have been synthesized through an Ullmann and Suzuki coupling reaction based strategy. A practical methodology for the successful chiral resolution of the newly synthesized catechol based moiety is presented. We also disclose the preliminary application of these axially chiral molecules as ligands in asymmetric transformation reactions.
Efficient tuning of electroluminescence from sky-blue to deep-blue by changing the constitution of spirobenzofluorene derivatives
Liang, Houjie,Wang, Xinxin,Zhang, Xingye,Ge, Ziyi,Ouyang, Xinhua,Wang, Suidong
, p. 57 - 63 (2014/05/20)
Two novel benzimidazole-attached spiro[benzofluorene] derivatives, 2,2′-(spiro[benzo[c]fluorine-7,9′-fluorene]-5,9-diylbis(4, 1-phenylene))bis(1-phenyl-1H-benzo[d]imidazole) and 2,2′-(spiro[benzo-[de] anthracene-7,9′-fluorene]-2′,3-diylbis(4,1-phenylene)) bis(1-phenyl-1H-benzo[d]imidazole), were prepared by a Suzuki coupling reaction. Their photophysical and photochemical properties were studied systemically. The fluorescent organic light-emitting diodes were fabricated by using them as the emitters, all of them showed strong blue emission. Interestingly, from the benzoanthracene derived compound a high color purity was found with Commission de L'Eclairage 1931 chromaticity coordinates of (0.15, 0.10) and an efficiency of 1.96 cd/A. To the best of our knowledge, this is the first time to obtain a deep-blue emission with spiro[benzofluorene] derivative in a nondoped device.
Saturated deep-blue emitter based on a spiro[benzoanthracene-fluorene]-linked phenanthrene derivative for non-doped organic light-emitting diodes
Liang, Houjie,Wang, Xinxin,Zhang, Xingye,Liu, Zhiyang,Ge, Ziyi,Ouyang, Xinhua,Wang, Suidong
, p. 4696 - 4701 (2015/02/19)
A spiro[benzoanthracene-fluorene] derivative containing a phenanthrene moiety, 2′,3-di(phenanthren-9-yl)spiro[benzo[de]anthracene-7,9′-fluorene] (DPSBAF), was prepared by a Suzuki coupling reaction. The photophysical and photochemical properties were investigated systematically. A non-doped organic light-emitting diode using DPSBAF as the emitter achieved a luminance efficiency of 2.18 cd A-1 with Commission Internationale de l'clairage 1931 chromaticity coordinates of (0.15, 0.09). The synthesized spiro[benzoanthracene-fluorene] derivative with a high thermal stability, a glass transition temperature of 210 °C and a decomposition temperature of 410 °C, shows potential for application in non-doped saturated deep-blue organic light-emitting diodes. This journal is
Role of the aromatic bridge on radical ions formation during reduction of diphosphaalkenes
Lejeune, Manuel,Grosshans, Philippe,Berclaz, Theo,Sidorenkova, Helena,Besnard, Celine,Pattison, Phil,Geoffroy, Michel
supporting information; experimental part, p. 2510 - 2520 (2012/01/04)
Two molecules containing two phenylphosphaalkene moieties linked by an anthracene (1) or by a naphthalene (2) ring have been synthesized and their crystal structures have been determined. While electrochemical measurements show that these two systems are
