Results 151 to 160 of about 52,626 (269)

Covalent Organic Framework Electrolytes for Solid‐State Lithium Batteries: Designing Ion Highways for Next‐Generation Energy Storage

Small, EarlyView.
Covalent organic frameworks provide a structurally programmable platform for solid‐state lithium batteries. This review outlines a design framework linking structural descriptors to ion‐transport metrics. It examines mechanisms of confinement, channel architecture, and hybrid designs, addressing the reasons for the occasional failure of high intrinsic ...
Rajesh Dhanushkotti, Ningaraju G. N., Karthik C. S., Karthik V, Anil Kumar M R, Jitendrasingh Rajpurohit, Jeremy I. G. Dawkins, Karim Zaghib   +7 more
wiley   +1 more source

Spectral studies on pyridinium hexafluorophosphate

, 1985
Pure samples of pyridinium hexafluorophosphate ($C_5H_5$$^+_NHPF^-_6$) were prepared by the reaction of pyridinium poly(hydrogen fluoride) and phosphorus(V) halides. The i.r.
Mohamed, Syed K, Padma, DK
core  

Oxaziridines: Versatile Reagents in Modern Organic Synthesis

The Chemical Record, EarlyView.
Being capable of transferring an O atom and N‐group/atom, oxaziridines are considered multitasking agents. These are employed for diverse organic transformations, such as epoxidation of olefins, α‐ and γ‐hydroxylation/amination of carbonyl compounds, oxidation of sulfides, [3+2]cycloaddition with unsaturated systems.
Ajeet Chandra, Subba Rao Cheekatla, Keshaba Nanda Parida   +2 more
wiley   +1 more source

Pyridine and pyridinium-based anion receptors

, 2010
Pyridine and pyridinium heterocycles play an important role in anion receptor chemistry. Hydrogen bond arrays are frequently preorganized by the presence of the pyridine nitrogen lone pair of electrons, whilst the positively charged pyridinium group is ...
Nathan Kilah (14741152), Beer, PD (15571769)   +1 more
core  

Catching Wyckoff’s Phantom: The Peculiar Crystal Structure of Orthorhombic Cs[ICl2]

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
Over 100 years after the first crystallographic elucidation, the still elusive orthorhombic modification of Cs[ICl2] could be isolated and structurally elucidated from the reaction of aqueous H[ICl4] with Cs2CO3. The [ICl2]− anion shows an unusually large bond length asymmetry, which shows characteristics of a Cl−∙∙∙I–Cl complex with an extremely ...
Jan Langwald, Antonio Frontera, Mathias S. Wickleder   +2 more
wiley   +1 more source

Benign by design: A paradigm shift in cosmetic ingredient development

International Journal of Cosmetic Science, EarlyView.
Benign by design strategies enable the creation of biodegradable cosmetic ingredients, reducing environmental persistence while maintaining the intended biological activity. This work compiles design rules and tools to guide the development of more sustainable molecules for the cosmetics industry.
Sandra Mota, Klaus Kümmerer, Isabel Martins de Almeida, Emília Sousa   +3 more
wiley   +1 more source

Selective photo labeling of tryptophan in N‐acetyl‐L‐tryptophan ethyl ester and peptide WWCNDGR with a diaryl nitrenium ion

Photochemistry and Photobiology, EarlyView.
Visible light photolysis of a N‐(N,N‐diarylaminopyridinium) salt allows for covalent modification of a peptide. Mass spectrometry demonstrates that this procedure selectively labels tryptophan residues. Laser flash photolysis experiments show that bond formation occurs via a diarylnitrenium ion intermediate.
Edward S. Chinn, Yue Li, Abigail M. Joyce, Daniel E. Falvey   +3 more
wiley   +1 more source

Exploring Polyene Construction Tactics for the Total Synthesis of Ocular Pyridinium Bisretinoids of Lipofuscin A2E and pdA2E. [PDF]

J Org Chem
Vidal B, Martínez C, Álvarez R, de Lera ÁR.   +3 more
europepmc   +1 more source

Pyridinium cationic lipids as gene transfer agents

, 2004
Pyridinium cationic lipids useful as non-viral gene delivery agents are disclosed. The agents are prepared by reaction of pyrylium salts with primary amines.
Seitz, William A., Wentz, Melissa J., Johnson, Betty H., Ilies, Marc A. C., Thompson, Edward Bradbridge, Garfield, Robert E., Balaban, Alexandru T., Miller, Aaron L.   +7 more
core  

Assembly and Properties of Donor/Acceptor–Functionalized 2,6‐Bisethynylpyridines; Investigations of Through‐Bond and Through‐Space Charge Transfer Behavior

Journal of Physical Organic Chemistry, Volume 39, Issue 10, October 2026.
Introduction of a cation to donor/acceptor‐functionalized 2,6‐bisethynylpyridines results in through‐space interaction of donor and acceptor units. The electronic effects of this organization are explored using 1H‐NMR and UV‐vis spectroscopies. ABSTRACT Introduction of Ag(I) cations to 2,6‐bisethynylpyridine units decorated with electron‐donating (N,N ...
Jarod T. Sjoquist, Noah A. Grinde, Maggie A. Schultz, Olivia J. Schwarz, John T. Nabors, Nathaniel P. Litts, Joseph D. Scanlon, Eric Bosch, Nathan P. Bowling   +8 more
wiley   +1 more source