“…We further examine a range of epoxides with varying electron-withdrawing/donating properties. This work highlights the benefit arising from the constraining effect of a solid surface, akin to the role of hydrogen bonds in enzyme catalysts, and the importance of correctly balancing it.…”
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“…Hyperspectral Raman images taken along the electrochemical process demonstrated that the cobalt center is the primary active catalyst site, but its performance is enhanced by the ruthenium complexes, which act as electron-donating groups, in the supramolecular system.…”
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“…In this research, related methyl ketones bearing electron-donating and electron-withdrawing groups, together with heteroaromatics, were investigated against seed germination and seedling growth of Chinese amaranth (Amaranthus tricolor L.) and barnyard grass [Echinochloa crus-galli (L.) …”
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“…The projected local density of states (PLODS) analysis coupled with transmission spectra and current–voltage (I–V) simulations show that hydrogen bonding through electron-donating hydroxyl groups in the aromatic linker facilitates electron transfer, while the electron-withdrawing carboxyl group inhibits electron transfer across the junction. …”
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“…The mechanism of 2-Ph-pyridine phosphination with PAr(2)CF(3) is similar to that with PPh(3), and analyses of the effects of substituents show that electron-withdrawing groups decreased the nucleophilicity of the phosphine, whereas aryl electron-donating groups increased it. Finally, TfO(−) plays an important role in the C–H fluoroalkylation of pyridine, as it brings weak interactions.…”
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“…We conclude that neglecting the electron donating properties of bridges themselves and internal rotation about the single bonds taking part in conjugation can result, for instance, in misinterpretation of their room temperature NMR spectra and overestimation of the computed molecular dipole moments by more than 5 D.…”
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“…Computational analyses confirm the strong electron‐donating capacity of the DBB ligand and show that the E(4) ligand is bound by four equivalent Fe−P σ bonds.…”
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“…Here, using two break-junction techniques and computational modeling, we investigate systematically the effect of electron-donating and -withdrawing side groups on the charge transport through single molecules. …”
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“…The effects of the electron-donating group (-CH(3)) and electron-withdrawing group (-NO(2)) on the optoelectronic and charge transfer properties were studied. …”
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“…Charge separation was observed in cases of electron‐donating Cors, whereas a quantitative energy transfer from the Cor to the SubPc was detected in the case of electron accepting Cors.…”
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“…By introducing electron-withdrawing and -donating R groups to the donor of D–π–A, the observed intramolecular interactions controllable at the HOMO level led to the exploration of radical species. …”
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“…BACKGROUND: In common narratives of emergency food assistance, donors likely believe their efforts directly manifest as people consuming their donated food. For example, a person donating canned lima beans during a canned food drive may visualise someone eventually eating those lima beans. …”
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“…This review systematically analyzed the influence of different substituents on the corrosion inhibition performance of N-heterocycles, including different alkyl chain substituents, electron-donating and electron-withdrawing substituents, and halogen atoms, respectively. …”
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“…Indeed, in contrast to the poorly reactive silyliumylidene ions 3  c,d stabilized by strongly donating ligands (DMAP, NHC), the silylene‐ and sulfide‐supported one (2‐H and 3  a) exhibits higher reactivity toward various small molecules. …”
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“…On one hand this results in a larger steric repulsion, but on the other hand, the donor‐acceptor interactions are enhanced due to the larger overlap between the donating and accepting orbitals leading to more charge donation and therefore an enhanced electrostatic attraction.…”
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“…In general, electron-donating groups cause red shifts compared to the parent compound. …”
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“…This nanomagnetic metal–organic framework was used for the synthesis of a wide range of nicotinonitrile derivatives as suitable drug candidates by a four-component reaction of 3-oxo-3-phenylpropanenitrile or 3-(4-chlorophenyl)-3-oxopropanenitrile, ammonium acetate (NH(4)OAc), acetophenone derivatives, and various aldehydes including those bearing electron-donating, electron-withdrawing, and halogen groups, which afforded desired products (27 samples) via a cooperative vinylogous anomeric-based oxidation (CVABO) mechanism under solvent-free conditions in excellent yields (68–90%) and short reaction times (40–60 min). …”
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“…The electronic transitions to the first and second excited singlet states involve a transfer of electron density from the electron donating methylenedioxy phenyl ring to the electron accepting isoquinolium moiety. …”
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“…Moreover, the MBI-CuNPs probe could eliminate the interference of biological mercaptan Hcy and GSH with a similar structure and reaction properties, due to the strong electron-donating ability of Cys, which can quench the fluorescence of the MBI-CuNPs probe. …”
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“…We systematically assembled a library of 116 2-cyanobenzimidazoles, 1-methyl-2-cyanobenzimidazoles, 2-cyanobenzothiazoles, and 2-cyanobenzoxazoles containing electron-donating and electron-withdrawing substituents at all positions of the benzene ring. …”
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