- Novel phenylcarbazole type organic compounds and an organic electroluminescent device comprising the same
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An organic compound represented by chemical formula 1 and an organic light emitting device including the same are provided. Chemical Formula 1.
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Paragraph 0269-0272
(2021/06/09)
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- New indolo[1,2-c]quinazolines for single-crystal field-effect transistor: A united experimental and theoretical studies
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Here, we account the synthesis and characterization of a series of symmetrical fused heterocyclic aromatic hydrocarbons (HAHs) with an indolo[1,2-c]quinazoline (IQ) as the core moiety. All the new HAHs IQ series were systematically investigated by using various spectroscopic methods. Furthermore, their photo-physical properties were supported by density functional theory (DFT) and time-dependent density functional theory (TDDFT) studies to support the experimental findings. The tetramethyl-substituted indolo[1,2-c]quinazoline (TMIQ) compound is shown to exhibit the shifted type of π–π stacking interactions, which render this series as a new semiconducting material. Single-crystal-based field-effect transistor devices of TMIQ exhibited efficient charge transport behavior, giving a p-channel field-effect mobility of 0.25 cm2?V?1?s?1 with an on/off ratio of 5 × 105.
- Puli, Venkat Swamy,Kilaru, Suresh,Bhongiri, Yadagiri,Marri, Sreenath Reddy,Tripathi, Anuj,Chetti, Prabhakar,Chatterjee, Anindita,Vukoti, Kiran Kumar,Pola, Someshwar
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- Cu(II)-Promoted Cascade Synthesis of Fused Imidazo-Pyridine-Carbonitriles
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A Cu(II)-promoted synthesis of an aza-fused N-heterocycle having a benz-imidazopyridine scaffold is developed via an addition-cyclization reaction followed by an Ullmann-type C-N coupling between o-iodoanilines and γ-ketodinitriles. This protocol features a broad substrate scope, giving products in 32-84% yields. The compounds show excellent photoluminescence properties having two absorption maxima in the region between 270-280 and 338-350 nm and emission maxima in the range of 502-533 nm. The HOMO-LUMO energy gap of 3.49-3.57 eV was determined using Gaussian 09 at the B3LYP/6-31G (d, p) basis set level. We also demonstrated a few postsynthetic modifications.
- Rakshit, Amitava,Dhara, Hirendra Nath,Alam, Tipu,Dahiya, Anjali,Patel, Bhisma K.
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supporting information
p. 17504 - 17510
(2021/11/18)
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- Dispirofluorene-indenofluorene (DSFIF): Synthesis, electrochemical, and optical properties of a promising new family of luminescent materials
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A series of new dispiro[fluorene-9′,6,9″,12-indeno[1,2b] fluorenes] (DSFIFs) that combine indenofluorene (IF) and spirobifluorene (SBF) architectural specificities have been prepared. Their anodic oxidations lead to the formation of nonsoluble transparent
- Horhant, David,Liang, Jing-Jing,Virboul, Morgane,Poriel, Cyril,Alcaraz, Gilles,Rault-Berthelot, Joelle
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p. 257 - 260
(2007/10/03)
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- AROMATIC AMIDES
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This application relates to a compound of formula I (or a pharmaceutically acceptable salt thereof) as defined herein, pharmaceutical compositions thereof, and its use as an inhibitor of factor Xa, as well as a process for its preparation and intermediates therefor.
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