41819-13-0Relevant articles and documents
Two novel isostructural Ln (III) 3D frameworks supported by 3,6-dibromobenzene-1,2,4,5-tetracarboxylic acid and in situ generated oxalate: Syntheses, characterization and photoluminescent property
Zhang, Liangliang,Guo, Jie,Meng, Qingguo,Pang, Haiduo,Chen, Zhen,Sun, Daofeng
, p. 51 - 55 (2012)
Two isostructural lanthanide complexes, [Ln (dbtec)0.5(ox) 0.5·3H2O]n, [Ln = Dy (1), Yb (2)] (H4dbtec = 3,6-dibromobenzene-1,2,4,5-tetracarboxylic acid; H 2ox = oxalic acid), have been synt
Pyromellitic diimide-based copolymers for ambipolar field-effect transistors: Synthesis, characterization, and device applications
Shao, Jinjun,Chang, Jingjing,Dai, Gaole,Chi, Chunyan
, p. 2454 - 2464 (2014)
A pyromellitic diimide building block, 2,6-bis(2-decyltetradecyl)-4,8- di(thiophen-2-yl)pyrrolo[3,4-f]isoindole-1,3,5,7(2H,6H)-tetraone (4), is synthesized. Based on this building block and other electron-rich units such as 2,2′-bithiophene, thieno[3,2-b]
Synthesis and photophysical investigations of pyromellitic diimide based small molecules
Bathula, Chinna,Mallikarjuna,Kadam, Abhijit,Shrestha, Nabeen K.,Khadtare, Shubhangi,Mane, Suresh D.,Kim, Haekyoung
, p. 20 - 24 (2019/02/12)
The present work reports on the highly efficient microwave assisted Suzuki coupling reaction for obtaining pyromellitic diimide based symmetrical small molecules with donor-acceptor-donor (D-A-D) configuration. Electron rich bithiophene is employed as a donor and alkyl substituted pyromellitic diimide units are explored as acceptors to get the desired small molecules. In order to study the relation between chemical structures and material properties, the prepared compounds were characterized in detail using absorption spectroscopy, cyclic voltammetry and thermograviometric analysis. The compounds exhibited good thermal stabilities with high decomposition temperature. Photophysical investigations of the newly synthesized pyromellitic diimide based small molecules, suggests these materials as potential candidates for organic electronic applications.
HIGH-AND LOW-POTENTIAL, WATER-SOLUBLE, ROBUST QUINONES
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, (2018/09/21)
Substituted hydroquinones, 1,4-quinones, catechols, 1,2-quinones, anthraquinones, and anthrahydroquinones are disclosed herein. The substituted hydroquinones and catechols have the formula: while the substituted 1,4-quinones or 1,2-have the corresponding oxidized structure (1,4- benzoquinones and 1,2-benzoquinones). One or more of R1, R2, R3 and R4 include a sulfonate moiety, a sulfonimide moiety, or a phosphonate moiety, and any of R1, R2, R3 and R4 that do not include one of these moieties include an alkyl, a cycloalkyl, a thioether, a sulfoxide, a sulfone, a haloalkyl, a halogen, a nitrile, an imide, a pyrazole, or combinations thereof. The substituted anthraquinones have the formula: while the substituted anthrahydroquinones have the corresponding reduced structure. One or more of R1-R8 have a sulfonate or phosphate tethered to the ring by a thi other, amine, or ether including one or more alkyl groups. Any of R1-R8 that do not contain one of these moieties include an alkyl, a cycloalkyl, a thiother, a sulfoxide, a sulfone, a haloalkyl, a halogen, a hydroxyl, an alkoxyl, an ether, an amine, or hydrogen The substituted hydroquinones, 1,4-quinones, catechols, 1,2-quinones, anthraquinones, or anthrahydroquinones are soluble in water, stable in aqueous acid solutions, and have useful reduction potentials in the oxidized form. Accordingly, they can be used as redox mediators in emerging technologies, such as in mediated fuel cells or organic-mediator flow batteries.