Results 71 to 80 of about 11,114 (246)

Synthesis And Characterization Of CoMo/Mordenite Catalyst For Hydrotreatment Of Lignin Compound Models

Open Chemistry, 2019
The synthesis of CoMo/Mordenite (CoMo/MOR) catalysts was conducted using a co-impregnation method at a various Co/Mo ratios. The produced catalysts were then characterized by X-ray diffraction, total acidity analysis, and scanning electron microscopy ...
Nugrahaningtyas Khoirina Dwi, Rahmawati Nining, Rahmawati Fitria, Hidayat Yuniawan   +3 more
doaj   +1 more source

A Trans‐1,2‐Diphenyl‐Substituted EDTA Platform for High‐Relaxivity Mn(II) MRI Probes

Chemistry – A European Journal, EarlyView.
Symmetric diphenyl substitution of the EDTA backbone enhances the rigidity of the Mn(II) complex and enables strong multisite interactions, providing a versatile platform for further functionalisation and conjugation towards high‐performance Mn(II)‐based MRI contrast agents.
Federico Forgione, Alessandro Nucera, Marco Ricci, Attila Benyei, Mariangela Boccalon, Zsolt Baranyai, Giovanni B. Giovenzana, Mauro Botta   +7 more
wiley   +1 more source

Synthesis of anisole by vapor phase methylation of phenol with methanol over catalysts supported on activated alumina

, 2016
The synthesis of anisole by vapor phase methylation of phenol with methanol over activated alumina (AA) supported catalysts was investigated in a fixed bed reactor. KH2PO4/AA gave the best per performance among the eight tested catalysts.
Song, Wenli, Song Wenli, Wang, Ze, Lin, Weigang, Wang Ze, Dang Dan, Dang, Dan, Lin Weigang   +7 more
core   +1 more source

Preparation of Arylthiocyanates Using N,N′-Dibromo-N,N′-bis(2,5-dimethylbenzenesulphonyl) ethylenediamine and N,NDibromo-2,5-dimethylbenzenesulphonamide in the Presence of KSCN as a Novel Thiocyanating Reagent

Molecules, 2001
N-Bromosulphonamides, synthesized via direct bromination of sulphonamides, react with several types of arene substrates in the presence of KSCN to afford aryl thiocyanates. The method appears to be generally applicable to benzenoid substrates with a wide
Ardeshir Khazaei, Abdolhamid Alizadeh, Ramin Ghorbani Vaghei   +2 more
doaj   +1 more source

Managing Crystallization in Tin‐Lead Perovskite Solar Cells via Differential Chelating Coordination

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A chelation‐mediated crystallization strategy is developed for Sn–Pb perovskites using 1,10‐phenanthroline. Stronger coordination with Sn than Pb helps reconcile their mismatched crystallization behavior, leading to improved crystalline quality, fewer defects, and reduced oxidation.
Zihao Feng, Miao Zeng, Na Han, Gang Wang, Junmin Xia, Chenpeng Xi, Shi Chen, Jia Guo, Jinfeng Liao, Guichuan Xing   +9 more
wiley   +1 more source

Activation of Anisole by Organoplatinum(II) Complexes: Evidence for Rate-Determining C–H Activation

, 2016
A study of the basis of selectivity of C–H bond activation of anisole by electrophilic methylplatinum­(II) complexes is reported. Anisole reacts with [PtXMe­(NN)] in trifluoroethanol solvent to give methane and [PtXAr­(NN)], Ar = 2-, 3-, and 4-anisyl, in
Mahmoud M. Abd Rabo Moustafa (2130100), Benjamin F. T. Cooper (1705309), Kevin J. Bonnington (2130097), Michael C. Jennings (1671937), Fenbao Zhang (2130103), Richard J. Puddephatt (1588843)   +5 more
core   +1 more source

Radical, Not Ionic: The Mechanochemical Zincke Nitration of Phenols

Angewandte Chemie, Volume 138, Issue 46, 9 November 2026.
Mechanochemistry recasts the classical Zincke nitration as an open‐shell process. Liquid‐assisted vibrational milling of phenols with in situ HNO2 delivers direct and ipso nitration across 50 substrates, while atmosphere, NOx‐transfer, EPR and DFT evidence expose a phenoxyl‐radical/NO2 manifold underlying this historically ionic transformation ...
Roberto Scipione, Francesco Basoccu, Pietro Caboni, Francesca Sardu, Enrico Podda, Marco Lucarini, Massimiliano Arca, Andrea Porcheddu   +7 more
wiley   +2 more sources

Comprehensive Review on Advancements in Food Preservation Technologies for Quality and Sustainability

Food Chemistry International, EarlyView.
Preservatives limit microbial development, oxidation, and enzymatic degradation, resulting in better food quality and extended shelf life. Classified as natural, synthetic, or biological, each preservative has distinctive attributes and modes of action. Growing preference for natural preservatives aligns with clean label trends.
Monica Suresh, Arun Meyyazhagan, Haripriya Kuchi Bhotla, Manikantan Pappuswamy, Balamuralikrishnan Balasubramanian   +4 more
wiley   +1 more source

Regulating secondary phase of Rb‐based aggregates for efficient and stable perovskite solar cells

FlexMat, EarlyView.
By introducing RbAc into the precursor solution, the crystallization pathway is optimized, excessive lead iodide is eliminated, grain size increases, and defects are passivated in the perovskite films. The obtained perovskite devices exhibit improved power conversion efficiency and operational stability. Abstract Passivating defects in perovskite films
Weiyuan Chen, Chao Wu, Jie Zhang, Lei Zhao, Yikun Hua, Xinyue Song, Wei Hui, Lin Song   +7 more
wiley   +1 more source

The Absorption Spectrum of Anisole and the Anisole/CO 2 1:1-Cluster. The Influence of Intermolecular Interaction on Intramolecular Vibrations

, 2004
Anisole / Anisole/CO 2 / Quantumchemical Calculations / REMPI Spectra / Geometry / Vibrations electronic transition of anisole and the anisole/CO 2 aggregate cooled in a supersonic free jet has been investigated in detail using REMPI spectroscopy and ...
S Marquardt, R Chelli, H Baumgärtel, A S Gemechu, G Cardini, L J H Hoffmann, C G Eisenhardt, S Califano   +7 more
core