Results 41 to 50 of about 60,247 (222)

Synthesis and Evaluation of Self-Assembling Properties of 3-(3,5-Difluoro-3,5-bis((alkoxy)carbonyl)-2,6-dioxoheptan-4-yl)-1-methylpyridin-1-ium Iodides

Molbank, 2022
A synthesis of 3-(3,5-difluoro-3,5-bis((alkoxy)carbonyl)-2,6-dioxoheptan-4-yl)-1-methylpyridin-1-ium iodides with ethyl or nonyl ester groups at positions 3 and 5 was performed. Treatment of the corresponding 2’,6’-dimethyl-1’,4’-dihydro-[3,4’-bipyridine]
Nadiia Pikun, Davis Lacis, Arkadij Sobolev, Martins Rucins, Mara Plotniece, Karlis Pajuste, Aiva Plotniece   +6 more
doaj   +1 more source

Pyridinium based amphiphilic hydrogelators as potential antibacterial agents

Beilstein Journal of Organic Chemistry, 2010
The numerous applications of hydrogelators have led to rapid expansion of this field. In the present work we report the facile synthesis of amphiphilic hydrogelators having a quaternary pyridinium unit coupled to a hydrophobic long alkyl chain through an
Sayanti Brahmachari, Sisir Debnath, Sounak Dutta, Prasanta Kumar Das   +3 more
doaj   +1 more source

Cetyl-pyridinium chloride is useful for isolation of Mycobacterium tuberculosis from sputa subjected to long-term storage. [PDF]

, 2005
Recovery of Mycobacterium tuberculosis from sputa treated with cetyl-pyridinium chloride (CPC) and stored for 20 +/- 9 days was significantly higher than that from sputa that were untreated and processed by the N-acetyl-L-cisteine-NaOH method.
Orefici, Graziella, Varaine, Francis, Iona, Elisabetta, Arzumanian, Erchanik, Varaine, F, Fattorini, L, Fattorini, Lanfranco, Orefici, G, Arzumanian, E, Checchi, F, Checchi, Francesco, Iona, E, Oggioni, Marco Rinaldo, Pardini, Manuela, Oggioni, M R, Pardini, M, Checchi F, Orefici G, Fattorini L, Arzumanian E, Pardini M, Oggioni MR, Varaine F, Iona E   +23 more
core   +1 more source

Low viscosity, high concentration pyridinium anolytes for organic non-aqueous redox flow batteries [PDF]

, 2023
The ability to tune various physicochemical and electrochemical properties of redox-active organic molecules (ROMs) independently from one-another has been a long-standing goal of researchers attempting to design active materials for redox flow batteries
Thomas, Guarr, Dominik, Servinski, David, Hickey, Sharmila, Samaroo, Davarius, Carter, Annabelle, Pattillo, William, Kruper   +6 more
core   +2 more sources

Pyridinium-Based Strategy for a Bioorthogonal Conjugation-Assisted Purification Method for Profiling Cell Surface Proteome

Cell surface proteins (CSPs) are valuable targets for therapeutic agents, but achieving highly selective CSP enrichment in cellular physiology remains a technical challenge.
Yongli Li (527489), Tuanjie Zhang (17349385), Fadeng Yang (6481601), Zhuoheng Pan (17349382), Dongyan Yang (284362), Chuan Dai (2087050), Feng Yin (681489), Lizhi Zhu (1608625), Xiaochun Guo (12084664), Rui Wang (52434), Yuhao An (11197503), Zigang Li (606370), Chuan Wan (1400545), Chenshan Lian (8281266)   +13 more
core   +3 more sources

Bright NIR-Emitting Styryl Pyridinium Dyes with Large Stokes’ Shift for Sensing Applications

Biosensors, 2023
Two NIR-emitting donor-π-acceptor (D-π-A) type regioisomeric styryl pyridinium dyes (1a–1b) were synthesized and studied for their photophysical performance and environment sensitivity. The two regioisomers, 1a and 1b, exhibited interesting photophysical
Nirasha I. Wickramasinghe, Brian Corbin, Devni Y. Kanakarathna, Yi Pang, Chathura S. Abeywickrama, Kaveesha J. Wijesinghe   +5 more
doaj   +1 more source

A Pyridinium Ylide-alkylation Strategy for the Structural Diversification of N-Carbamoyl Pyridinium Salts [PDF]

A pyridinium-ylide alkylation strategy has been developed for accessing N,N-disubstituted carbamoyl pyridinium salts that possess multiple nucleophilic sites.
Michael, Taylor, Benjamin, Gossett, Akash, Sarkar   +2 more
core   +2 more sources

Bis[2-(2,4-dinitrobenzyl)pyridinium] biphenyl-4,4′-disulfonate trihydrate [PDF]

, 2010
In the structure of the title salt, 2C12H10N 3O4 +·C12H8O 6S2 2-·3H2O, determined at 173 K, the biphenyl-4,4′-disulfonate dianions lie across crystallographic inversion centres with the sulfonate groups inter-acting head-to-head through centrosymmetric ...
Young, David J, Smith, Graham, Wermuth, Urs D., Wermuth, U D, Young, David J., Young, David James, Smith, G, D. Wermuth, Urs, Wermuth, Urs D, Young, David   +9 more
core   +2 more sources

Pyridinium Cations Act as Charge Reservoirs in Expanded Halide Perovskite Analogs at High Pressure

Angewandte Chemie, EarlyView.
Redox‐innocent pyridinium derivatives can act as charge reservoirs in expanded tin‐iodide perovskite analogs. Material compression reduces the energy gap between the pyridinium π* acceptor orbital and the valence‐band maximum, facilitating electron transfer from the framework to the molecules and thereby significantly increasing electronic conductivity
Christina R. Deschene, Feng Ke, Kostas Fykouras, Alexander C. Su, Yu Lin, Linn Leppert, Hemamala I. Karunadasa, Roc Matheu   +7 more
wiley   +2 more sources

Orchestrating Anion–π+ Interactions to Accelerate Metal‐Free Room‐Temperature Phosphorescence

Angewandte Chemie, EarlyView.
Tuning anion–π+ interactions in pyridinium iodide contact ion pairs enables ultrafast metal‐free room‐temperature phosphorescence (540–605 nm) with radiative rates up to 5.2×105 s−1. Strong iodide→π+ charge‐transfer coupling, enhanced spin–orbit interactions, and dynamic ion‐pair organization accelerate intersystem crossing and emission, establishing ...
Eetu Hakkarainen, Corentin Montagne, Hao‐Cheng Lin, Chen‐Yu Lin, Khai‐Nghi Truong, Po‐Yu Chen, Anton Nechaev, Fabien B. L. Cougnon, Igor O. Koshevoy, Toni Eskelinen, Hao‐Wu Lin, Pi‐Tai Chou, Andrey Belyaev   +12 more
wiley   +2 more sources