Ni(COD)2 coupling of 3,6-dibromocarbazoles as a route to all-carbazole shape persistent macrocycles
摘要:
The number of applications for carbon-based materials has experienced tremendous growth over the last decade arising from their low toxicity, straight-forward chemical modification, and interesting electronic properties. Among these materials, self-assembled structures based on shape persistent macrocycles are perhaps the most exciting as they offer a means to prepare a wide range of morphologies through reversible assembly of these molecular precursors. In this letter, we report on the preparation of a novel family of all-carbazole shape persistent macrocycles through the simple single-step reaction of the corresponding 3,6-dibromocarbazoles over Ni(COD)(2). The resultant macrocycles display optical properties characteristic of the parent N-alkyl polycarbazoles, with quantum yields ranging from 11% up to 21% suggesting that certain substituents induce the formation of highly emissive aggregates, which could potentially provide a mechanism for the preparation of functional self-assembled nanomaterials. (C) 2015 Elsevier Ltd. All rights reserved.
Development in synthesis and electrochemical properties of thienyl derivatives of carbazole
摘要:
A convenient and higher yielding synthetic route to N-alkyl-bis(thiophene)- and N-alkyl-bis(ethylenedioxythiophene) carbazole derivatives is reported and their aggregation, and electrochemical properties are characterized. The key step in the synthesis of this group of compounds has been the Stille-type coupling reaction between the N-alkyldibromocarbazole and tin derivatives of thiophene or ethylenedioxythiophene, as the best way for preparation of conjugated N-alkylcarbazole derivatives. For this group of compounds we also present an electrochemical polymerization effect. (c) 2005 Elsevier Ltd. All rights reserved.
IRIDIUM COMPLEX, CARBAZOLE DERIVATIVES AND COPOLYMER HAVING THE SAME
申请人:Lee Jae-Suk
公开号:US20080177084A1
公开(公告)日:2008-07-24
Disclosed are a monomer of iridium complex having a fluoro group as a functional group, a monomer of carbazole derivative having a hydroxy group as the functional group, and a copolymer containing the monomers in its main chain. The iridium complex used as a phosphorescent material and the carbazole derivative having an excellent hole transporting capability are synthesized as the monomer to form the copolymer. The content of iridium complex is easily controlled, and the carbazole derivative and iridium complex are contained in the main chain during the copolymer formation, thereby capable of manufacturing a light emitting device with higher heat resistance and chemical stability.
Polymer Library Comprising Fluorene and Carbazole Homo- and Copolymers for Selective Single-Walled Carbon Nanotubes Extraction
作者:Fabien Lemasson、Nicolas Berton、Jana Tittmann、Frank Hennrich、Manfred M. Kappes、Marcel Mayor
DOI:10.1021/ma201890g
日期:2012.1.24
To date, (n, m) single-walledcarbonnanotubes (SWNTs) cannot be selectively synthesized. Therefore, postprocessing of SWNTs including solubilization and sorting is necessary for further applications. Toward this goal, we have synthesized a polymer library consisting of fluorene- and carbazole-based homo- and copolymers. Variations of the connection of these aromatics together with the incorporation
4H-1,2,6-Thiadiazin-4-one-containing small molecule donors and additive effects on their performance in solution-processed organic solar cells
作者:Felix Hermerschmidt、Andreas S. Kalogirou、Jie Min、Georgia A. Zissimou、Sachetan M. Tuladhar、Tayebeh Ameri、Hendrik Faber、Grigorios Itskos、Stelios A. Choulis、Thomas D. Anthopoulos、Donal D. C. Bradley、Jenny Nelson、Christoph J. Brabec、Panayiotis A. Koutentis
DOI:10.1039/c4tc02931c
日期:——
Donor–acceptor–donors containing 4H-1,2,6-thiadiazinone are presented and used in organic solar cells.
含有4-1,2,6-噻二唑酮的给体-受体-给体被提出并用于有机太阳能电池。
Electrochemical and spectroelectrochemical comparison of alternated monomers and their copolymers based on carbazole and thiophene derivatives
conjugation that underwent facile electrochemicalpolymerization to form stable electroactive polymer. We extended the conjugation of the monomers in comparison to the carbazole and large decrease were observed in the oxidation potential at which polymerization occurs. To lower the oxidation potential of the monomer and control the optical and electronic properties of the polycarbazole, we attached
Organic Electroluminescence Device, Image Display Apparatus and Lighting Apparatus Including the Same, Charge Transport Material and Charge Transport Layer Forming Ink Including the Same
申请人:Hatanaka Yumiko
公开号:US20080054794A1
公开(公告)日:2008-03-06
An organic EL device includes a substrate, a first electrode, a luminous layer, a second electrode and a charge transport layer. The charge transport layer is provided between the luminous layer and the first electrode or between the luminous layer and the second electrode. The charge transport layer is made of a charge transport material including a polymeric compound having, in a polymer main chain, a condensed ring structure composed of a plurality of rings including a pyrrole ring with the main chain being a conjugated system.