Results 81 to 90 of about 15,174 (251)

Molecular Engineering of Polytriphenylamine: A Fluorinated Cathode for High‐Voltage, Ultrafast, and Stable Sodium‐Ion Batteries

Advanced Energy Materials, EarlyView.
Fluorination of polytriphenylamine lowers the HOMO energy, enabling high‐voltage operation of the PFTPA cathode. Electron‐withdrawing F substituents stabilize the nitrogen redox center and suppress polarization, leading to fast kinetics. The optimized polymer delivers ∼3.75 V vs.
Natalia Voronina, Irina A. Chuyko, Michael D. Khitrov, Koji Yazawa, Hitoshi Yashiro, Yuriy N. Luponosov, Seung‐Taek Myung   +6 more
wiley   +1 more source

One Molecular Platform, Three Distinct Narrowband Organoboron TADF Emitters: A Divergent One‐Pot Strategy From Green to Red

Angewandte Chemie, EarlyView.
One platform–three emitters: Divergent one‐pot borylation of a single indolocarbazole platform exploits competing mono‐ and double‐borylation pathways to generate three spectrally distinct organoboron MR‐TADF emitters spanning green to red, enabling color‐tunable narrowband OLEDs with external quantum efficiencies over 30%.
Jun Hyeon Lee, Minlang Yang, Takuma Yasuda   +2 more
wiley   +2 more sources

Borylcyclopropanes: Synthetic Strategies and Applications

Angewandte Chemie, EarlyView.
Borylcyclopropanes (cyclopropanes bearing a boron substituent) sit at the intersection of two privileged frameworks in synthesis. This review provides the first exhaustive survey of their chemistry, spanning metal–carbene, nucleophilic cyclization, radical, hydroboration, and C─H activation routes, and documenting applications in medicinal chemistry ...
Aiza A. Butt, Joseph M. Ready
wiley   +2 more sources

A Multi‐Stimuli Transformational Network of Benzil‐Based Pd(II) Assemblies

Angewandte Chemie, EarlyView.
Incorporation of a flexible and chemically reactive benzil backbone into the ligand structure allows it to access multiple conformations, enabling the formation of diverse homo‐ and heteroleptic Pd(II) assemblies with different nuclearities and topologies.
Zhiwei Zeng, A. Priscila Gia, Alexander S. Mikherdov, Mert Acar, Björn Schmidt, Guido H. Clever   +5 more
wiley   +2 more sources

Rapidly Diversifying Hydrogen‐Bonded Organic Frameworks With Permanent Porosity

Angewandte Chemie, EarlyView.
This article reviews diversifying hydrogen‐bonded organic frameworks (HOFs) with permanent porosity reported over the past 15 years, based on the molecular structures of their constituent tectons. Furthermore, several distinctive aspects and concepts are described, such as permanent porosity, isostructural (isoreticular) HOFs, and multicomponent mixed ...
Taito Hashimoto, Ichiro Hisaki
wiley   +2 more sources

4-Amino-3-[2-(9H-carbazol-9-yl)ethyl]-1H-1,2,4-triazole-5(4H)-thione dimethyl sulfoxide monosolvate

IUCrData, 2016
In the crystal of the title compound, C16H15N5S·C2H6OS, both the 1,2,4-triazole derivative molecules and the disordered [refined occupancy ratio = 0.604 (1):0.396 (1)] dimethyl sulfoxide solvent molecules form centrosymmetric dimers, by way of pairwise N—
Joel T. Mague, Shaaban K. Mohamed, Mehmet Akkurt, Talaat I. El-Emary, Mustafa R. Albayati   +4 more
doaj   +1 more source

Force‐Induced Control of Circularly Polarized Luminescence With Rotaxane Architecture

Angewandte Chemie, EarlyView.
Force‐induced reversible on/off switching of circularly polarized luminescence is achieved with a rotaxane‐based supramolecular mechanophore. The mechanophore, featuring a chiral helicene luminophore, is incorporated as a first network cross‐linker into a double‐network organogel.
Keigo Nonaka, Takumi Kuroda, Kota Masuda, Toshiki Nishitani, Masaki Enokido, Makoto Tsurui, Yuichi Kitagawa, Yasuchika Hasegawa, Keiichi Noguchi, Koji Nakano, Yoshimitsu Sagara   +10 more
wiley   +2 more sources

1,3,6-Tribromo-9-ethyl-9H-carbazole

IUCrData, 2016
In the title compound, C14H10Br3N, the carbazole ring system is almost planar, with an r.m.s. deviation of 0.023 Å from the best fit mean plane of the 13 non-H atoms of the three rings. The methyl C atom lies 1.232 (3) Å out of this plane.
Mkola Bezuglyi, Gintautas Bagdziunas, Juozas Vidas Grazulevicius   +2 more
doaj   +1 more source

Synthesis of Natural Carbazole Alkaloids: An Update

Natural Product Communications
Carbazoles alkaloids are tricyclic aromatic heterocyclic organic compounds, consisting of a central pyrrole ring fused with two benzene rings. Carbazole derivatives are an important class of nitrogen-containing heterocyclic compounds that are widely ...
Thi Chung Nguyen, Vo Cong Dung, Xuan Duc Dau   +2 more
doaj   +1 more source

N-(9-Ethyl-9H-carbazol-2-yl)-N′-(1-phenylethyl)thiourea

Molbank
Substituted thiourea derivatives represent a structurally diverse group of compounds with high biological activity. In this paper, we present the synthesis of N-(9-ethyl-9H-carbazol-2-yl)-N′-(1-phenylethyl)thiourea by condensation reaction. The structure
Agnieszka Maksymiuk-Kłos, Rafał Słapa, Marek Bartkowiak, Radosław Michalik, Monika Pazura-Turowska, Dorota Szubińska-Lelonkiewicz, Anna Bielenica   +6 more
doaj   +1 more source