272789-37-4Relevant academic research and scientific papers
A Nature-Inspired Conjugated Polymer for High Performance Transistors and Solar Cells
Fallon, Kealan J.,Wijeyasinghe, Nilushi,Yaacobi-Gross, Nir,Ashraf, Raja S.,Freeman, David M. E.,Palgrave, Robert G.,Al-Hashimi, Mohammed,Marks, Tobin J.,McCulloch, Iain,Anthopoulos, Thomas D.,Bronstein, Hugo
, p. 5148 - 5154 (2015)
A novel, highly soluble chromophore for use in organic electronics based on an indigoid structure is reported. Copolymerization with thiophene affords an extremely narrow band gap polymer with a maximum absorption at ～800 nm. The novel polymer exhibits high crystallinity and high ambipolar transport in OFET devices of 0.23 cm2 V-1 s-1 for holes and 0.48 cm2 V-1 s-1 for electrons. OPV device efficiencies up to 2.35% with light absorbance up to 950 nm demonstrate the potential for this novel chromophore in near-IR photovoltaics.
ORGANIC SEMICONDUCTOR POLYMERS
-
Paragraph 0070, (2018/10/24)
The organic semiconductor polymers relate to polymers containing an indolo-naphthyridine-6,13-dione thiophene (INDT) chromophore. The organic semiconductor polymers are formed by polymerizing INDT monomer with thiophene to obtain a conjugated polymer of t
Synthesis and peripheral substituent effects of bay-annulated indigo derivatives
Furuyama, Taniyuki,Tamura, Daichi,Maeda, Hajime,Segi, Masahito
supporting information, p. 2913 - 2916 (2018/06/25)
In this study, indolo-naphthyridine-6,13-diones (5a–d) with four different peripheral substituents were prepared via bay-annulation reactions of indigo. The resulting compounds (5a–d) exhibited fluorescence in the red to near-IR region, while the parent indigo molecule showed no fluorescence. Although the peripheral substituents were oriented to the exterior of the π-conjugated system, the electronic structure affected the absorption and fluorescence spectra. Moreover, calculated molecular orbitals and absorption spectra successfully reproduced the experimental absorption spectra and cyclic voltammograms.
Biotransformation of the phytoalexin camalexin by the phytopathogen Rhizoctonia solani
Pedras, M. Soledade C.,Khan, Abdul Q.
, p. 59 - 69 (2007/10/03)
The unusual metabolism of the cruciferous phytoalexin camalexin by virulent and weakly virulent isolates of the root rot fungus Rhizoctonia solani Kuhn is reported. This biotransformation proceeded via 5- hydroxycamalexin, which was further biotransformed into more polar metabolites. Importantly, the metabolites resulting from transformation of camalexin were significantly less toxic to the pathogen than camalexin. Thus, it was concluded that R. solani can detoxify camalexin through oxidation of the indole ring. The chemistry involved in the structure determination of the intermediates of this pathway, their synthesis as well as antifungal activity is described.
Design and synthesis of an α,α-difluorophosphinate hapten for antibody-catalyzed hydrolysis of organophosphorus nerve agents
Vayron, Philippe,Renard, Pierre-Yves,Valleix, Alain,Mioskowski, Charles
, p. 1050 - 1063 (2007/10/03)
In a new approach to the safe neutralization of organophosphorus chemical weapons, we designed a hapten to elicit catalytic antibodies with phosphatase activity. Here we report the synthesis of this α,α- difluorophosphinate hapten 6. Various methods for t
