Results 101 to 110 of about 64,953 (273)

Pyridinium methylsulfonate: a pseudosymmetric structure

open access: yesActa Crystallographica Section E Structure Reports Online, 2001
The title compound, C5H6N+·CH3SO3−, shows pseudosymmetry. More than 80% of the structure is centrosymmetric, whereas the remaining atoms do not fulfil this symmetry, and the structure is actually non-centrosymmetric.
Bolte, M.   +2 more
openaire   +3 more sources

Molecular Modification Strategies for CO2 Electroreduction to C2+ Products: Classifications, Mechanisms, Advances, and Perspectives

open access: yesEcoEnergy, EarlyView.
This review comprehensively outlines molecular modification strategies for steering CO2 electroreduction toward C2+ products, including the classification of diverse molecular structures, elucidation of their roles in microenvironment regulation, dissection of C–C coupling pathway engineering, and forward‐looking perspectives on machine learning and ...
Lingling Peng, Hanwen Liu, Tianyou Peng
wiley   +1 more source

4-(Dimethylamino)pyridinium 4-toluenesulfonate

open access: yesActa Crystallographica Section E, 2008
In the title compound, C7H11N2+·C7H7O3S−, the cation is protonated at the N atom of the heterocyclic ring. The dimethylamino group lies close to the pyridinium ring plane with a dihedral angle between the pyridinium and the dimethylamine CNC ...
Jim Simpson, C. John McAdam
doaj   +1 more source

All‐in‐One Intelligent Hemostatic Sponge: Rapid Hemostasis for Non‐Compressive Wounds With Synergetic Enhanced Antibacterial Efficacy and Self‐Reporting Biodegradation

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Clinicians often concurrently tackle critical challenges including emergency hemorrhage, secondary infection, and the elusive tracking of biodegradation of conventional hemostatic agents for complex wounds. Here, we report an intelligent hemostatic sponge (spCS@AIE) by incorporating aggregation‐induced emission (AIE) nanoparticles with short‐wave ...
Zhicheng Liu   +12 more
wiley   +1 more source

Mitochondrially targeted ceramides preferentially promote autophagy, retard cell growth, and induce apoptosis

open access: yesJournal of Lipid Research, 2011
C6-pyridinium (d-erythro-2-N-[6′-(1′′-pyridinium)-hexanoyl]sphingosine bromide [LCL29]) is a cationic mitochondrion-targeting ceramide analog that promotes mitochondrial permeabilization and cancer cell death.
Qi Hou   +8 more
doaj   +1 more source

Tellurium Electrochemistry: From Mechanistic Analysis in Diverse Electrolytic Media to Advanced Energy Storage Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
As a metalloid with broad prospects in advanced applications, Te has not been fully clarified in terms of its intricate electrochemical behaviors across varied systems. This review systematically integrates fundamental electrochemical mechanisms, reaction kinetics identifications, and device application insights, establishing a comprehensive framework ...
Meng Zhang   +6 more
wiley   +1 more source

Valorization of oat hulls and spent coffee grounds into pyridinium-modified granular adsorbents for water purification

open access: yesSustainability Science and Technology
Agro- and food-waste biomass such as oat hull (Oh) or spent coffee ground (SCG) biomass can yield sustainable adsorbents for water treatment. However, adsorbents in powdered form often face constraints in practical applications (column applications due ...
Bernd G K Steiger   +2 more
doaj   +1 more source

Bis(4,4′-bipyridin-1-ium) cis-bis(1,2-dicyano-2-sulfidoethene-1-sulfinato-κ2S,S′)platinate(2−)

open access: yesIUCrData
Crystals of the sulfinate-containing platinate salt, (C10H9N2)2[Pt(C4N2O2S2)2], were obtained from a solution of [Pt(4,4′-bpy)2(mnt)] after a long period with minimal light (4,4′-bpy is 4,4′-bipyridine and mnt is maleonitriledithiolate). In the crystals,
Claire E. Welton   +2 more
doaj   +1 more source

Electron‐Rich Para‐Methylpyridine‐Functionalized TEMPO Empowers Long‐Lived Neutral Aqueous Organic Redox Flow Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Three methylpyridine‐functionalized TEMPOs were synthesized through an electron‐rich regulation strategy. The calculation of transition states supported the highest reaction efficiency of para‐MePy‐TEMPOs, which outperformed its analogues to have the best performance of AORFBs, opening a new avenue for exploring TEMPO‐based catholytes.
Shaopeng Wang   +10 more
wiley   +1 more source

Asymmetric reduction of aromatic ketones in pyridinium-based ionic liquids

open access: yes, 2006
The asymmetric reduction of aromatic ketones has been studied in pyridinium-based room temperature ionic liquids, namely, 1-ethyl-pyridinium tetrafluoroborate, [EtPy]+[BF4]- and 1-ethyl-pyridinium trifluoroacetate, [EtPy]+[CF3COO]-.
Xiao, Ying, Malhotra, Sanjay V.
core   +1 more source

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