Results 131 to 140 of about 41,751 (271)

Lithium Ion‐Conducting Triazacoronene‐Based Neutral 2D Covalent Organic Framework as a Solid‐State Electrolyte

Small, EarlyView.
A new 2D COF based on hexamethoxy triazacoronene (HMTAC) exhibits impressive ionic conductivity (10−4 S/cm), activation energy (0.25 eV), Li+ transference number (0.57), as well as promising specific capacity of 181 mAh/g with >99% Coulombic efficiency when employed as a solid‐state electrolyte in a Li || Li+@HMTAC‐COF1 || LiFePO4 cells, outperforming ...
Jonathan L. Cromer, Ashok Yadav, Janak Basel, Mohd A. H. Ansari, Mihir Parekh, Jorge Barroso, Apparao M. Rao, Sourav Saha   +7 more
wiley   +1 more source

Preparation and Characterization of Polyphenol-Functionalized Chitooligosaccharide Pyridinium Salts with Antioxidant Activity

Marine Drugs
As a kind of eco-friendly material with wide application prospects, chitooligosaccharide (COS) has attracted increasing attention because of its unique bioactivities.
Zhen Qi, Wenqiang Tan, Zhanyong Guo, Aili Jiang   +3 more
doaj   +1 more source

Metal catalyzed rearrangement of a 2,2'-bipyridine Schiff-base ligand to a quaterpyridine-type complex [PDF]

, 2007
Champouret, Connor, Constable, Coronado, Dell'Amico, France, Fukuzumi, Helen Stoeckli-Evans, Jian Wang, Joan C. Halfpenny, John D. Wallis, Mahrwald, Melanie Pilkington, Padhi, Pilkington, Pilkington, Rice, Stuart Onions, Wang, Wang, Yang, Zang   +21 more
core   +1 more source

Protic Ionic Liquids in Contrast to Aprotic Analogs: Transport Properties and Electrochemical Reactivity

The Chemical Record, EarlyView.
The transport properties and electrochemical reactivity of protic ionic liquids (ILs) are compared with those of aprotic analogs. Protic ILs are characterized by strong cation–anion hydrogen bonding and labile protons, enabling proton conduction and highlighting their potential as fuel cell electrolytes.
Masayoshi Watanabe, Seiji Tsuzuki
wiley   +1 more source

Solid-phase synthesis and cytotoxic evaluation of novel pyridinium bromides

Scientific Reports
A series of amide-based mono and dimeric pyridinium bromides were synthesized using conventional and microwave-assisted solvent-free methods. The quaternization reactions of m-xylene dibromide and 4-nitrobenzylbromide with amide-based substituted ...
Sadaiyan Govindaraj, Kilivelu Ganesan, Perumal Elumalai, Rajanathadurai Jeevitha, Jospin Sindya, Subramani Annadurai, Shiek S. S. J. Ahmed, Mudassar Shahid   +7 more
doaj   +1 more source

Pyridinium Compounds as Sensitisers for Solar Cells

, 2011
The work presented in this thesis concerns the synthesis and study of various RuII polypyridyl complexes and organic chromophores which incorporate strongly electron-accepting and π-conjugated pyridinium groups. Several of these compounds have been studied as potential sensitisers for solar cell applications.The N3 dye, cis-RuII(NCS)2(dcbpy)2 (dcbpy ...
openaire   +1 more source

Cefdinir binding to a class A β‐lactamase revealed by serial cryo‐crystallography

Acta Crystallographica Section D, EarlyView.
Serial cryo‐crystallography reveals the structure of the extended‐spectrum β‐lactamase CTX‐M‐14 in complex with the third‐generation cephalosporin antibiotic cefdinir.One of the most common resistance mechanisms against antibiotics employed by Gram‐negative bacteria involves the production of β‐lactamases, resulting in rapid hydrolysis of the ...
Gargi Gore, Andreas Prester, Kim Bartels, David von Stetten, Eike C. Schulz   +4 more
wiley   +1 more source

Recent Approaches for the Synthesis of Pyridine and Quinoline Cores Present in Natural Products

Advanced Synthesis &Catalysis, Volume 368, Issue 10, 19 May 2026.
An anthology of the most recent methods used to synthesize pyridines and quinolines found in natural products over the last decade. Pyridines, quinolines, and their derivatives represent a class of significant heterocyclic compounds that are prevalent in a multitude of natural products, including alkaloids found in plants, fungi, insects, marine ...
Carl Bowman, Mathieu Frenette, Sylvain Canesi   +2 more
wiley   +1 more source

PFAS Removal by Anion‐Exchange Block Copolymer Membranes Featuring Highly Ordered Alternating Gyroid Nanochannels

Journal of Polymer Science, Volume 64, Issue 10, Page 2046-2054, 15 May 2026.
Engineering positively charged alternating gyroid nanochannels in block copolymer membranes provides a powerful tool for efficient PFAS removal. ABSTRACT Ion‐exchange resins (IERs) can effectively remove per‐ and polyfluorinated alkyl substances (PFAS) from water through electrostatic interactions between the negatively charged PFAS and the positively ...
Séléane Murillon, Seynabou Seck, Chaimaa Gomri, Maximilien Coronas, Erwan Ponsin, Sambhav Vishwakarma, Abdoul Aziz Ka, Arie van der Lee, Eddy Petit, Mona Semsarilar, Karim Aissou   +10 more
wiley   +1 more source

Dearomatization with Axial‐to‐Central Chirality Conversion

European Journal of Organic Chemistry, Volume 29, Issue 17, 5 May 2026.
Atropisomers are exciting synthetic targets with unique properties, which find applications in many fields of chemistry. However, considering them as substrates is not very frequent, notably in the context of dearomatization reaction. We wish to discuss the different strategies for the dearomatization of aromatic atropisomers with axial‐to‐central ...
Morgane Mando, Clément Lemaitre, Thierry Constantieux, Xavier Bugaut   +3 more
wiley   +1 more source