Results 21 to 30 of about 16,908 (263)

Molecular Orientations of Delayed Fluorescent Emitters in a Series of Carbazole-Based Host Materials

open access: yesFrontiers in Chemistry, 2020
Molecular orientation is one of the most crucial factors to boost the efficiency of organic light-emitting devices. However, active control of molecular orientation of the emitter molecule by the host molecule is rarely realized so far, and the ...
Hisahiro Sasabe   +16 more
doaj   +1 more source

Carbazoles: Role and Functions in Fighting Diabetes

open access: yesApplied Sciences, 2022
Carbazole derivatives have gained a lot of attention in medicinal chemistry over the last few decades due to their wide range of biological and pharmacological properties, including antibacterial, antitumor, antioxidant, and anti-inflammatory activities.
Fedora Grande   +6 more
doaj   +1 more source

Carbazole-Based Colorimetric Anion Sensors [PDF]

open access: yesMolecules, 2021
Endowed with strong carbazole chromophore and fluorophore as well as with powerful and convergent hydrogen bond donors, 1,8-diaminocarbazoles are amongst the most attractive and synthetically versatile building blocks for the construction of anion receptors, sensors and transporters.
Krystyna Maslowska-Jarzyna   +3 more
openaire   +4 more sources

Lewis Acid-Catalyzed 2,3-Dihydrofuran Acetal Ring-Opening Benzannulations toward Functionalized 1-Hydroxycarbazoles

open access: yesMolecules, 2022
The development of a Lewis acid-catalyzed, intramolecular ring-opening benzannulation of 5-(indolyl)2,3-dihydrofuran acetals is described. The resulting 1-hydroxycarbazole-2-carboxylates are formed in up to 90% yield in 1 h.
Shaoren Yuan   +4 more
doaj   +1 more source

Investigation of Polycarbazoles Thin Films Prepared by Electrochemical Oxidation of Synthesized Carbazole Derivatives

open access: yesFrontiers in Materials, 2019
Polycarbazole and its derivatives have advantages of good environmental stability, electrochromic properties and photoconductivity which have attracted considerable attention because of their potential industrial applications in electroluminescent ...
Emmanuel Contal   +5 more
doaj   +1 more source

Nitration of 5,11-dihydroindolo[3,2-b]carbazoles and synthetic applications of their nitro-substituted derivatives

open access: yesBeilstein Journal of Organic Chemistry, 2017
A new general approach to double nitration of 6,12-di(hetero)aryl-substituted and 6,12-unsubstituted 5,11-dialkyl-5,11-dihydroindolo[3,2-b]carbazoles by acetyl nitrate has been developed to obtain their 2,8-dinitro and 6,12-dinitro derivatives ...
Roman A. Irgashev   +3 more
doaj   +1 more source

Cytotoxic Constituents from the Stems of Clausena lansium (Lour.) Skeels

open access: yesMolecules, 2013
Six compounds were isolated from the stems of Clausena lansium (Lour.) Skeels by repeated sillica gel column chromatography. Their chemical structures were elucidated on the basic of physicochemical and spectroscopic data.
Shu Shan Du   +9 more
doaj   +1 more source

Vinylation of a Secondary Amine Core with Calcium Carbide for Efficient Post-Modification and Access to Polymeric Materials

open access: yesMolecules, 2018
We developed a simple and efficient strategy to access N-vinyl secondary amines of various naturally occurring materials using readily available solid acetylene reagents (calcium carbide, KF, and KOH).
Konstantin S. Rodygin   +2 more
doaj   +1 more source

Organic persistent room temperature phosphorescence enabled by carbazole impurity

open access: yesFrontiers in Chemistry, 2023
The molecular design of metal-free organic phosphors is essential for realizing persistent room-temperature phosphorescence (pRTP) despite its spin-forbidden nature.
Alexander C. Brannan   +3 more
doaj   +1 more source

9-Benzyl-9H-carbazole [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2010
The asymmetric unit of the title compound, C(19)H(15)N, contains two crystallographically independent mol-ecules. In both mol-ecules, the planar carbazole moieties [maximum deviations = 0.037 (4) and 0.042 (3) Å] are oriented with respect to the adjacent benzene rings, at dihedral angles of 85.29 (8) and 89.89 (7)°, respectively.
Uludağ, Nesimi   +4 more
openaire   +5 more sources

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