Direct ammonia synthesis from the air via gliding arc plasma integrated with single atom electrocatalysis. Appl. Catal. B Environ. 299, 120667 (2021). Article CAS Google Scholar Wang, C. et al. Modulating CoFe2O4 nanocube with oxygen vacancy and carbon wrapper towards enhanced electrocatalytic...
This enzymatic mechanism involves proton shuttles mediated by the porphyrin ring through the N-protonated intermediate, (2)5, which relays the proton either to the oxygen atom to form phenol ((2)7) or to the ortho-carbon atom to produce cyclohexenone product ((2)6). The formation of the ...
The detailed ligand-binding basis is presented in Fig. 2. The pyrimidine ring, as the core of the ligand elagolix, sits above the aromatic side chain of Y2836.51 and forms a hydrophobic π–π interaction with each other. However, the oxygen atom at position 4 is engaged in binding with ...
This acid on decarboxylation yields 3,4,6-trimethoxyphenanthrene (13) and, when converted through the amide, amine and phenol into the phenol methyl ether, gives 3,4,6,8-tetramethoxyphenanthrene (14). The production of the trimethoxyphenanthrene (13) indicates the oxygen substitution pattern of ...
Computations as well as simple VSEPR (valence shell electron pair repulsion) considerations show that the molecule is V-shaped (i.e., it is not linear) with the spin density mainly located at the terminal oxygen atoms and only little at the central chlorine atom. Immediately disproportionating...
The mechanism of action of antioxidants entails the formal abstraction of a hydrogen atom (H•) from the phenol group (Ph-OH) to form a phenoxyl radical (Ph-O•), which being stabilized by resonance and/or sterically hindered is less reactive than the alkyl/peroxyl radicals involved in ...
Preparation of Oxygen-Containing PCHs through Palladium-Catalyzed C–H Bond Arylation Preparation of Nitrogen-Containing PCHs through Palladium-Catalyzed C–H Bond Arylation Conclusion and Outlook Acknowledgments References and NotesShow full outline Cited by (117) Figures (118) Show 112 more figuresVolu...
Phenol. 2.1. Simple phenolics Phenolic acids are ubiquitous among plants; although free phenols are rare, gallic acid is relatively widespread and is the parent compound of the gallotannins (Figure 2). Gallic acid is well known for its astringent properties but has demonstrated many other activitie...
Ivask A, Bondarenko O, Jepihhina N, Kahru A (2010) Profiling of the reactive oxygen species-related ecotoxicity of CuO, ZnO, TiO2, silver and fullerene nanoparticles using a set of recombinant luminescent Escherichia coli strains: differentiating the impact of particles and solubilised metals. ...
It may be said that a hydrogen bond exists between the hydroxyl group of the catalyst and the oxygen atom of the a,/3- unsaturated compound, thereby leading to a more structured state, since a lack of free hydroxyl groups in the catalyst usually results in a diminished enantiomeric yield ...