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.
Low bandgap dicyanovinyl and tricyanovinyl oligothiophenes for solar cell applications
申请人:Nano and Advanced Materials Institute Limited
公开号:US08975419B2
公开(公告)日:2015-03-10
The invention relates to solution-processable, p-type, low-optical gap oligothiophene compounds for use in solar cell application, comprising at least one thiophene-containing group, at least one electron-withdrawing dicyanovinyl or tricyanovinyl group, and at least one electron-donating diphenylaminofluorenyl or N-alkylcarbazole group.
An Efficient Ultrasound-Assisted Synthesis of<i>N</i>-Alkyl Derivatives of Carbazole, Indole, and Phenothiazine
作者:Sanhu Zhao、Jin Kang、Yuting Du、Jingyan Kang、Xiaoni Zhao、Yinfeng Xu、Ruixi Chen、Qianqian Wang、Xitao Shi
DOI:10.1002/jhet.1652
日期:2014.5
Heterocyclic compounds bearing an acidic hydrogen atom attached to nitrogen such as carbazole, indole, and phenothiazine can be efficiently alkylated in DMSO or N,N‐DMF under ultrasonic irradiation in the presence of potassium hydroxide as a base. In almost all cases, a dramatic reduction of the reaction time results and a clear yield increase accompanied by an improved quality of the products occurs
Preliminary interactive investigation revealed that compound 4f could effectively intercalate into calf thymus DNA to form 4f–DNA complexes which might block DNA replication and thus exert antimicrobial activities. In addition, the binding behavior of compound 4f to DNA revealed that compound 4f could interact with DNA by hydrogen bonds and electrostaticinteractions.
通过1 H NMR,13 C NMR,IR,MS和HRMS光谱设计,合成和表征了一系列新型的咔唑氨基噻唑类新型抗菌剂。一些咔唑氨基噻唑具有良好的抗菌活性。特别地,庚基衍生的咔唑氨基噻唑4f可以有效抑制MRSA的生长,其MIC值为4μgmL -1,优于参考药物绿霉素和诺氟沙星。此外,细胞毒性研究表明,生物活性化合物4f在其MIC内对MRSA的Hep-2细胞没有细胞毒性。初步交互研究发现,化合物4f可以有效地插入小牛胸腺DNA中,形成4f –DNA复合物,这可能会阻止DNA复制,从而发挥抗菌活性。另外,化合物4f与DNA的结合行为表明化合物4f可以通过氢键和静电相互作用与DNA相互作用。
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。
Carbazole based charge transport compounds
申请人:——
公开号:US20030207188A1
公开(公告)日:2003-11-06
Improved organophotoreceptors have:
(a) a charge transport compound having the formula
1
where R
1
is hydrogen, a branched or linear alkyl group, a branched or linear unsaturated hydrocarbon group, an ether group, or an aryl group; and
R
2
and R
3
independently have a structure of:
2
in which Ar is selected form the group consisting of;
3
R
4
is a hydrogen, or an aromatic group;
(b) a charge generating compound; and
(c) an electrically conductive substrate.