Results 241 to 250 of about 241,984 (318)

Ketazine‐Linked Covalent Organic Framework for Metal‐Free Electrocatalytic Nitrate‐to‐Ammonia Conversion

Angewandte Chemie, EarlyView.
A metal‐free fluorinated ketazine‐linked COF is introduced as an efficient electrocatalyst for nitrate reduction to ammonia under neutral conditions. Fluorine substitution enhances π–π stacking and crystallinity, enabling a Faradaic efficiency of 59.9% and an NH3 yield rate of 1639.9 µmol h−1 mgCOF−1 at −0.9 V versus RHE. This establishes an unexplored
Islam E. Khalil, Ashadul Adalder, Badr Elkamash, Narad Barman, Darosch Asgari, Luoxing Xiang, Warisha Tahir, Franziska Hess, Ranjit Thapa, Adisak Boonchun, Uttam Kumar Ghorai, Prasenjit Das, Arne Thomas   +12 more
wiley   +1 more source

Cooperation-Enhanced N-H···π Hydrogen Bonds: Liquid Pyrrole and Its Mixture with Benzene. [PDF]

J Phys Chem Lett
Sella A, Wilson M, Novoveska M, Headen TF, Clancy AJ, Skipper NT, Di Mino C.   +6 more
europepmc   +1 more source

π‐Radical Cascades to Peri‐Fused Triangulene Dimers

Angewandte Chemie, EarlyView.
We demonstrate the potential of open‐shell molecular graphene fragments as synthons for constructing graphene nanostructures via π‐radical cascades. By identifying monoradical intermediates as key selectivity‐determining species and tuning steric effects in a triangulene precursor, we show that reactivity in a formally diradical system can be ...
Paula L. Widmer, Leoš Valenta, Maximilian Mayländer, Jules Hutter, Francis J. Carta, Simon Jurt, Olivier Blacque, Laurent Bigler, Sabine Richert, Tomáš Šolomek, Michal Juríček   +10 more
wiley   +1 more source

Synthesis, structure-activity relationships, and SARS-CoV-2 antiviral activity of 3,5-disubstituted isothiazolo[4,3-<i>b</i>]pyridines as PIKfyve inhibitors. [PDF]

Front Chem
Gao LJ, Kalebic D, Lo CW, Gangwal A, Tran DHN, Rozenski J, Schols D, Froeyen M, Dehaen W, Einav S, De Jonghe S.   +10 more
europepmc   +1 more source

1,7‐Digallatetracarborane: Between Nucleophilic closo‐Cluster and “Inverse Sandwich” Digallylene

Angewandte Chemie, EarlyView.
A dianionic π‐ligand is used to make a Janus‐type twofold complex with low‐valent gallium Ga(+I). The resulting compound can be seen as and reveals the reactivity of both: a Wade‐type closo‐carborane cluster with nucleophilic Ga‐sites, as well as π‐ligand stabilized Ga(I) atoms in an inverse sandwich compound.
Julijan Sarcevic, Tobias Heitkemper, Niklas Mehner, Maximilian Kubis, Christian P. Sindlinger   +4 more
wiley   +1 more source

Prevalence of symptoms associated with occupational exposure to benzene, toluene, ethylbenzene and xylene among gas station workers: a protocol for systematic review and meta-analysis. [PDF]

BMJ Open
Mendes TMC, Medeiros KS, Oliveira RFS, Carlan Padilha L, Castro JL.   +4 more
europepmc   +1 more source

Rapid degradation of the anionic surfactant sodium dodecyl benzene sulfonate via a hybrid UV/hydrodynamic cavitation system with H₂O₂ and persulfate. [PDF]

Ultrason Sonochem
Sajedi H, Baradaran S, Vahidi O.
europepmc   +1 more source

Dual Chemical Looping/Catalytic Process for Alkylation of Benzene With Ethane and Propane Yielding Ethylbenzene and Cumene Over Copper-Containing Mordenite. [PDF]

Angew Chem Int Ed Engl
Dubray FJ, Wang YH, Artsiusheuski MA, Guo J, Verel R, Kulkarni A, van Bokhoven JA, Sushkevich VL.   +7 more
europepmc   +1 more source

Rational design of a polyphenyl octacarboxylate HOF for highly selective separation of benzene over cyclohexane. [PDF]

Chem Sci
Liu B, Wang Y, She M, Liu T, Luo M, Xie Y, Liu D, Du Z, Huang L, Yuan W.   +9 more
europepmc   +1 more source