Results 171 to 180 of about 360,483 (285)

Photocatalytic Vanadium‐Mediated Amination of Benzene With Hydroxylamine

Chemistry – A European Journal, EarlyView.
Photochemical activation of N‐phenylphenothiazine (PPT) enables a selective direct benzene amination with hydroxylamine in the presence of various vanadium catalysts under mild reaction conditions. Spectroscopic and kinetic analyses identify a key vanadium(IV)‐hydroxylamine intermediate, elucidate the crucial roles of the acidic medium, the ...
Dana Králová, Maximilian Philipp, Matthias Schmalzbauer, Thilo Reiter, Bernd Schäfer, Ruth M. Gschwind, Burkhard König   +6 more
wiley   +1 more source

Mechanisms of Hydroxyl Radical Chemistry in Aqueous Solution Triggered by Photoexcitation and Probed by Soft X-rays. [PDF]

J Am Chem Soc
Cordsmeier L, Ribeiro da Silva Neto W, Fondell M, Mitzner R, Vaz da Cruz V, Eckert S, Föhlisch A.   +6 more
europepmc   +1 more source

Addition Reactions of Phosphorus‐Centered Radicals onto Olefins: Interplay Between Stability and Reactivity

Chemistry – A European Journal, EarlyView.
The energetics of the addition reaction of P‐centered radicals onto alkenes are primarily ruled by the stability of the attacking radical, as outlined by the computational screening of a wide range of reactions. In addition, donor‐acceptor substituents at the olefin have an important tuning role.
Meng Yang, Julianna Oláh, Zoltán Benkő   +2 more
wiley   +1 more source

Toward Portable and Affordable Air Quality Monitoring: A 3D-Printed Platform for Colorimetric NO₂ Quantification from Vehicles' Exhaust Emissions. [PDF]

ACS Omega
Sousa DDS, da Silva SG, Petruci JFDS.
europepmc   +1 more source

Structural and Biological Insights Into Copper(I) Phosphane Complexes With Boron‐Phenylated Poly(3‐(CF3)Pyrazolyl)‐ and Poly(6‐(CF3)‐2‐pyridyl)‐Borates

Chemistry – A European Journal, EarlyView.
This study reports six new copper(I) complexes with unusual coordination and strong anticancer activity against a panel of human cancer cell lines derived from different solid tumors. The most active compounds outperform cisplatin, even in resistant cells, by inhibiting protein disulfide isomerase and inducing redox stress that triggers non‐apoptotic ...
Vo Quang Huy Phan, Jo’ Del Gobbo, Mukundam Vanga, Deepika V. Karade, Cristina Marzano, Valentina Gandin, Laura Rigon, Carlo Santini, Maura Pellei, H. V. Rasika Dias   +9 more
wiley   +1 more source

Association Between Air Pollutants and Infectious Epiglottitis Incidence: A Observational Study. [PDF]

Health Sci Rep
Yu P, Fang R, Xue C.
europepmc   +1 more source

On the Reaction Mechanism of Nitrate Radical and DMPO in Non‐aqueous Photocatalytic Media

Chemistry – A European Journal, EarlyView.
This work identifies 2‐oxo‐5,5‐dimethyl‐1‐pyrroline 1‐oxyl (DMPOX), formed via the selective oxidation of 5,5‐dimethyl‐1‐pyrroline N‐oxide (DMPO) by nitrate radicals (NO3•) in nonaqueous media, as a distinctive EPR fingerprint of NO3•. The DFT‐supported mechanism clarifies its formation pathway and highlights DMPOX detection as a robust tool for ...
Alessandro Gottuso, Alessia Zollo, Leonardo Palmisano, Stefano Livraghi, Francesco Parrino   +4 more
wiley   +1 more source

Associations Between Air Pollution Exposure and Gestational Weight Gain Pattern: Evidence from a Large-Scale Hospital-Based Retrospective Cohort Study. [PDF]

Toxics
Xiong S, Ai W, Tian K, Zhu X, Chen M, Shen X, Yang B, Zhou Y.   +7 more
europepmc   +1 more source

Low‐Ru‐Content CuCoRu Aerogel for Boosted Electrocatalytic Nitrate Reduction to Ammonia

EcoEnergy, EarlyView.
Low‐Ru‐content Cu5Co5Ru aerogel with enhanced hydrogenation ability and 3D robust aerogel skeletons enables high‐efficiency and long‐term electrocatalytic nitrate reduction to ammonia at low overpotential, achieving an exceptional ammonia yield rate of 2.7 ± 0.1 mmol cm−2 h−1 and a high Faradaic efficiency of ∼97% at −0.1 V versus RHE as well as an ...
Jinjie Tan, Wenjun Ning, Jiashu Chen, Dongyang Lou, Zhehang Jiang, Shurong Li, Rui Zhou, Weichun Chang, Xiu‐Zhi Tang, Libin Zeng, Wei Huang, Jing Yang   +11 more
wiley   +1 more source

Chloronitramide Anion Quantitation in Tap Waters by Ion Chromatography with Electrical Conductivity and Ultraviolet Absorbance Detection. [PDF]

Environ Sci Technol Lett
Thornhill JA, Laszakovits JR, Johnson BE, Chimka JR, Fairey JL.   +4 more
europepmc   +1 more source