255829-24-4Relevant academic research and scientific papers
Effects on the electrochemical and electrochromic properties of 3,6 linked polycarbazole derivative by the introduction of different acceptor groups and copolymerization
Hu, Bin,Lv, Xiaojing,Sun, Jingwei,Bian, Gaofeng,Ouyang, Mi,Fu, Zhiyan,Wang, Pingjing,Zhang, Cheng
, p. 1521 - 1530 (2013)
Two novel donor-acceptor type monomers, ethyl 4-(3,6-di(thiophen-2-yl)-9H- carbazole-9-yl)-benzoate (ETCB) and 9-(4-nitrophenyl)-3,6-di(thiophen-2-yl)-9H- carbazole (NDTC), were synthesized and characterized. Both the monomers show good electrochemical ac
Utilization of conformation change and charge trapping to achieve binary/ternary rewritable memory performance of carbazole-based organic molecules
Gou, Gaozhang,He, Xiujuan,Liu, Juqing,Ma, Jinwen,Mao, Huiwu,Yang, Yanhua
, p. 22629 - 22638 (2021/12/24)
To better understand the relationship between the molecular structure and memory characteristics, two carbazole-based organic compounds (Cz-2Ph3F 6FDA and Cz-2TPA 6FDA) with different ratios of electron-donating and electron-withdrawing units were designed and synthesized. An ITO/Cz-2Ph3F 6FDA/Al device was fabricated and presented binary rewritable memory behavior, whereas the as-fabricated ITO/Cz-2TPA 6FDA/Al device exhibited ternary rewritable memory behavior. The electrical conduction behaviors of memory devices were analyzed through theoretical models and experimental data. The molecular simulation indicated that the electrical switching behaviors could be caused by field-induced charge transfer in combination with a conformation change and charge traps. This study provide a practicable strategy to acquired organic molecules with high-performance memory characteristics. This journal is
The electrochemical fabrication of electroactive polymer films from diamide- or diimide-cored N-phenylcarbazole dendrons for electrochromic applications
Hsiao, Sheng-Huei,Lin, Shu-Wei
, p. 1271 - 1280 (2016/02/18)
Two series of novel diamide- or diimide-cored N-phenylcarbazole dendrons were synthesized from condensation reactions of 3,6-di(carbazol-9-yl)-N-(4-aminophenyl)carbazole (NH2-3Cz) with aromatic dicarboxylic acids and tetracarboxylic dianhydrides, respectively. These dendrons can be electropolymerized into crosslinked poly(amide-carbazole) and poly(imide-carbazole) films on the electrode surface in an electrolyte solution via the coupling reactions between carbazole radical cations. Cyclic voltammograms of the electro-generated polymer films showed two reversible oxidation redox couples accompanied by a color change from the colorless neutral state to the yellow-green and blue oxidized forms in the range of 1.11-1.34 V. The electrochromic behavior of the film is clearly interpreted on the basis of spectroelectrochemical studies. Single layer electrochromic cells were also fabricated as preliminary evaluation for their application as electrochromic devices.
Synthesis of nitrocarbazole compounds and their electrocatalytic oxidation of alcohol
Zhu, Yinghong,Zhang, Jianqing,Chen, Ziying,Zhang, Anlun,Ma, Chunan
, p. 533 - 538 (2016/04/20)
Three compounds with nitrocarbazole frameworks were synthesized and their electrochemical reversibility as organic electrocatalysts was studied by cyclic voltammetry. The electrochemical reversibility and oxidation-reduction potential of the compounds were greatly affected by their substituents. The oxidation-reduction potential of the compound with an electron-donating group was negative, while that of the compound with an electron-withdrawing group on the carbazole framework was positive. The electrocatalytic oxidation activities of the nitrocarbazole compounds were investigated through cyclic voltammetry and controlled potential electrolysis at room temperature. The electrocatalysts showed excellent selectivity for p-methoxybenzyl alcohol, converting it to the corresponding aldehyde through electro-oxidation with just 2.5 mol% of the electrocatalysts presented. The electrocatalysts maintained their excellent electroredox activity following recycling.
Novel functional triamine monomer containing carbazole structure and preparation method and application thereof
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Paragraph 0091; 0092; 0093, (2016/10/09)
The invention discloses a novel functional triamine monomer containing a carbazole structure and a preparation method and application thereof. Starting from carbazole, the novel functional triamine monomer containing carbazole is prepared through a nitration reaction, a Ullmann coupling reaction, a reduction reaction and other reactions; or starting from mono-halogenated carbazole or dihalogenated carbazole, the novel functional triamine monomer containing carbazole is prepared through a Ullmann coupling reaction, a Suzuki reaction, a reduction reaction and other reactions. The novel functional triamine monomer containing carbazole is simple in synthesis method and technology, high in yield and easy to purify, and therefore the novel functional triamine monomer containing carbazole is suitable for industrial production. The novel functional triamine monomer can be used for synthesizing hyperbranched and functional polyamide, polyimide, polyamide imide, polyester imide and other polymers.
Conjugated polymer covalently modified multiwalled carbon nanotubes for optical limiting
Niu, Lijuan,Li, Peipei,Chen, Yu,Wang, Jun,Zhang, Jinjuan,Zhang, Bin,Blau, Werner J.
experimental part, p. 101 - 109 (2011/10/08)
A new soluble multiwalled carbon nanotubes (MWNTs) covalently functionalized with conjugated polymer PCBF, in which the wt % of MWNTs is approximately calculated as 7.3%, and the average thickness of PCBF covalently grafted onto MWNTs is 10.4 nm, was synt
Nonvolatile rewritable memory effects in graphene oxide functionalized by conjugated polymer containing fluorene and carbazole units
Zhang, Bin,Liu, Yi-Liang,Chen, Yu,Neoh, Koon-Gee,Li, Yong-Xi,Zhu, Chun-Xiang,Tok, Eng-Soon,Kang, En-Tang
experimental part, p. 10304 - 10311 (2011/10/11)
A new polymer, poly[{9,9-di(triphenylamine)fluorene}(9,9-dihexylfluorene) (4-aminophenylcarbazole)] (PFCz) was synthesized and used in a reaction with graphene oxide (GO) containing surface-bonded acyl chloride moieties to give a soluble GO-based polymer
Arylamino-functionalized fluorene- and carbazole-based copolymers: Color-tuning their CdTe nanocrystal composites from red to white
Kanelidis, Ioannis,Ren, Yi,Lesnyak, Vladimir,Gasse, Jan-Christoph,Frahm, Ronald,Eychmueller, Alexander,Holder, Elisabeth
experimental part, p. 392 - 402 (2012/01/06)
Four alternating arylamino-functionalized copolymers were synthesized in a Suzuki copolymerization applying 4, 4′-(2,7-dibromo-9H-fluorene-9,9-diyl) dianiline, 4,4′-(2,7-dibromo-9H-fluorene-9,9-diyl)bis(N,N-diphenylaniline) , 4-(3,6-dibromo-9H- carbazol-9
Synthesis and characterization of gold(I) complexes with 9-(4-isocyanophenyl)carbazole or 9-ethyl-3-isocyanocarbazole ligands
Benavente, Rut,Espinet, Pablo,Lentijo, Sergio,Martin-Alvarez, Jose M.,Miguel, Jesus A.,Rodriguez-Medina, M. Paz
scheme or table, p. 5399 - 5406 (2010/06/13)
The carbazole derivatives 9-(4-isocyanophenyl)carbazole, 3, 6-dibromo-9-(4-isocyanophenyl) carbazole, and 9-ethyl-3-isocyanocarbazole were prepared, and used to synthesize [AuX(CN-carbazole)] (X = Cl, C 6F5, C6F4/sub
MONOMER OF THE "PUSH-PULL" TYPE AND PHOTOCHROMIC ELECTROCONDUCTING POLYMER MATERIAL OBTAINED FROM THIS MONOMER
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Page/Page column 4, (2008/12/06)
The invention relates to a “push-pull” type compound, used for manufacturing polymer materials having both electrical conduction and photochromic properties, which responds to the general formula A-X-R in which: A is an electron acceptor group;X is a group having a π-conjugated system and forms a photochromic group with A; andR is a polymerizable electron-donor group that is chosen among the carbazole group and the groups derived from the carbazole group by substitution, and which is linked to X by the nitrogen atom of the carbazole group. The invention also relates to an electroconducting and photochromic polymer material, obtained by polymerization of this compound. Applications: optoelectronics, signal processing, data storage, etc.
