105633-27-0Relevant academic research and scientific papers
Solution-processed organic light-emitting diodes with emission from a doublet exciton; using (2,4,6-trichlorophenyl)methyl as emitter
Neier, Eric,Arias Ugarte, Renzo,Rady, Nader,Venkatesan, Swaminathan,Hudnall, Todd W.,Zakhidov, Alexander
, p. 126 - 131 (2017)
Neutral-π radical based open shell molecules foster new potential in light emitting diodes because of their theoretical near-equity quantum efficiencies. In this study, we report organic light emitting diodes (OLEDs) based on a novel open shell molecule (
Drawbacks Arising from the High Steric Congestion in the Synthesis of New Dendritic Polyalkylaromatic Polyradicals
Ruiz-Molina, Daniel,Veciana, Jaume,Palacio, Fernando,Rovira, Concepcio
, p. 9009 - 9017 (1997)
The synthesis of the highly strained tris(α,α-bis(pentachlorophenyl)-2,4,5,6-tetrachlorotolyl)methane (8), which is the precursor of the first generation of the polyradical series III, has been achieved by exhaustive chlorination of compound 11. Stepwise
Chemical Modification toward Long Spin Lifetimes in Organic Conjugated Radicals
Dai, Ya-Zhong,Dong, Bo-Wei,Kao, Yi,Wang, Zi-Yuan,Un, Hio-Ieng,Liu, Zheng,Lin, Zhi-Jun,Li, Liang,Xie, Fang-Bai,Lu, Yang,Xu, Mei-Xing,Lei, Ting,Sun, Yu-Jie,Wang, Jie-Yu,Gao, Song,Jiang, Shang-Da,Pei, Jian
, p. 2972 - 2977 (2018)
Organic semiconductors for spin-based devices require long spin relaxation times. Understanding their spin relaxation mechanisms is critical to organic spintronic devices and applications for quantum information processing. However, reports on the spin re
Mixed-halide triphenyl methyl radicals for site-selective functionalization and polymerization
Arnold, Mona,Blinder, Rémi,Chen, Lisa,Jelezko, Fedor,Kuehne, Alexander J. C.
, p. 27653 - 27658 (2021/08/25)
Derivatives of the stable, luminescent tris-2,4,6-trichlorophenylmethyl (TTM) radical exhibit unique doublet spin properties that are of interest for applications in optoelectronics, spintronics, and energy storage. However, poor reactivity of the chloride-moieties limits the yield of functionalization and thus the accessible variety of high performance luminescent radicals. Here, we present a pathway to obtain mixed-bromide and chloride derivatives of TTM by simple Friedel-Crafts alkylation. The resulting radical compounds show higher stability and site-specific reactivity in cross-coupling reactions, due to the better leaving group character of the para-bromide. The mixed halide radicals give access to complex, and so far inaccessible luminescent open-shell small molecules, as well as polymers carrying the radical centers in their backbone. The new mixed-halide triphenyl methyl radicals represent a powerful building block for customized design and synthesis of stable luminescent radicals.
Trityl light-emitting free radical material as well as preparation method and application thereof
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Paragraph 0073-0078, (2021/11/06)
The invention provides a trityl light-emitting free radical material and a preparation method and application thereof, and belongs to the technical field of organic luminescent materials. The trityl radical light-emitting material provided by the inventio
A pure red organic light-emitting diode based on a luminescent derivative of tris(2,4,6-trichlorotriphenyl)methyl radical
Gao, Yingchang,Obolda, Ablikim,Zhang, Ming,Li, Feng
, p. 644 - 650 (2017/01/09)
A novel derivative of Tris(2,4,6-trichlorotriphenyl)methyl radical was synthesized and used as the emitter of an organic light-emitting diode. Stable electroluminescent (EL) spectra at the full-range driving voltages and pure red color were obtained throu
ORGANIC ELECTROLUMINESCENT DEVICE BASED ON NEUTRAL FREE-RADICAL ELECTROLUMINESCENT MATERIAL
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, (2016/05/02)
Disclosed is an organic electroluminescent device, wherein the light-emitting layer is composed of a non-doped neutral free-radical electroluminescent material or a neutral free-radical electroluminescent material doped in a matrix material. The luminesce
Organic light-emitting diodes using a neutral π radical as emitter: The emission from a doublet
Peng, Qiming,Obolda, Ablikim,Zhang, Ming,Li, Feng
supporting information, p. 7091 - 7095 (2015/06/16)
Abstract Triplet harvesting is a main challenge in organic light-emitting devices (OLEDs), because the radiative decay of the triplet is spin-forbidden. Here, we propose a new kind of OLED, in which an organic open-shell molecule, (4-N-carbazolyl-2,6-dich
Taking advantage of the radical character of tris(2,4,6-trichlorophenyl) methyl to synthesize new paramagnetic glassy molecular materials
Castellanos, Sonia,Velasco, Dolores,Lopez-Calahorra, Francisco,Brillas, Enric,Julia, Luis
, p. 3759 - 3767 (2008/09/20)
(Chemical Equation Presented) This paper describes the synthesis of the novel bis[4-(N-carbazolyl)-2,6-dichlorophenyl](2,4,6-trichlorophenyl)methyl radical (2.) and tris[4-(N-carbazolyl)-2,6-dichlorophenyl]methyl radical (3.). A Friedel-Crafts reaction on [4-(N-carbazolyl)-2,6- dichlorophenyl)bis(2,4,6-trichlorophenyl]methyl radical (1.), 2 ., and 3. leads to the introduction of acyl chains in the 3- and 6-positions of the carbazolyl moiety without impairment of the radical character of the molecule to give radicals 5., 6., and 7.. All of these novel radical adducts are thermally stable, 5 . and 6. being amorphous solids by differential scanning calorimetry. Electron paramagnetic resonance spectra of them show a multiplet at low temperature due to the electron-coupling with six aromatic hydrogens. They show electrochemical amphotericity being reduced and oxidized to their corresponding stable anionic and cationic species, respectively. These radical adducts have luminescent properties covering the red spectral band of the emission with high intensities.
Red organic light-emitting radical adducts of carbazole and tris(2,4,6-trichlorotriphenyl)methyl radical that exhibit high thermal stability and electrochemical amphotericity
Velasco, Dolores,Castellanos, Sonia,Lopez, Marc,Lopez-Calahorra, Francisco,Brillas, Enric,Julia, Luis
, p. 7523 - 7532 (2008/02/13)
(Chemical Equation Presented) Synthesis and characterization of new carbazolyl derivatives with a pendant stable radical of the TTM (tris-2,4,6-trichlorophenylmethyl radical) series are reported. The EPR spectra, electrochemical properties, absorption spe
