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  1. 2541
    por Bond, Marcus R., Silwal, Sajan
    Publicado 2023
    “…The organic cation in the title mol­ecular salt, C(5)H(13)NCl(+)·Cl(−), exhibits the gauche effect with a C—H bond of the C atom β to the chloro group donating electrons to the anti­bonding orbital of the C—Cl bond to stabilize the gauche conformation [Cl—C—C—C = −68.6 (6)°], as confirmed by DFT geometry optimizations that show a lengthening of the C—Cl bond relative to that of the anti conformation. …”
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  2. 2542
    “…[Image: see text] Here, we explored the possibility of using cycloparaphenylenes (CPP) within a donor–acceptor TADF emitter design. 4PXZPh-[10]CPP contains four electron-donating moieties connected to a [10]CPP. In the 15 wt % doped in CzSi film, 4PXZPh-[10]CPP showed sky-blue emission with λ(PL) = 475 nm, Φ(PL) = 29%, and triexponential emission decays with τ(PL) of 4.4, 46.3, and 907.8 ns. …”
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  3. 2543
    “…Its electrophilic character was confirmed by using substituted benzaldehydes and a modified ligand framework containing electron-donating (Me) substituents. Furthermore, the results of kinetic isotope experiments (KIE) using deuterated substrate indicate that the C-H activation can be interpreted through a tunneling-like HAT mechanism. …”
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  4. 2544
    “….-31.12.2021. and, also, to determining the frequency, is to determine the severity of adverse reactions and the causes that led to them (gender, age, place of donation, whether they are more common during the first or repeated blood donation) as well as the consequences they leave behind. …”
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  5. 2545
    “…From that number of donors, there were 75,4% (107000) fitting donors, while those who have been returned because they haven’t satisfied donating criteria were 24,6% (3487). From the number of those who have donated blood (10700), negative reactions appeared in 1,8% (195) blood donors. …”
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  6. 2546
    “…BACKGROUND: Research suggests that health/safety behaviors (e.g., drinking heavily) and medical behaviors (e.g., donating blood) may be perceived as inherently risky, and further suggests there is substantial variation in the likelihood of engaging in a particular health-related risk behavior across people. …”
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  7. 2547
    “…This study aimed to investigate public attitudes towards donating loyalty card data for academic health research, and the safeguards the public would want to see implemented. …”
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  8. 2548
    “…To accomplish this, electron donating alkyl‐ and arylsulfido substituents, methoxy and methyl groups were selectively introduced into the peri position via a nucleophilic aromatic substitution of the perchlorinated tetraazaperylene. …”
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  9. 2549
    “…The present flow protocol was applied for a vast substrate scope and was found to be compatible with a wide range of functional groups, such as electron-donating groups, carbonyl, and various halogens. Further studies were attempted to show that the improvement in the catalytic activity and selectivity benefited from the dual functions of DMAP; namely, the heterolytic H(2) cleavage and competitive adsorption.…”
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  10. 2550
    por Reikosky, Nora
    Publicado 2023
    “…In response to COVID-19 many companies, particularly technology companies, voluntarily attended to the strained education sector by donating or temporarily discounting their core products, generating public support and gratitude. …”
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  11. 2551
    “…Aromatic primary amines substituted with electron-donating as well as electron-withdrawing groups on the aryl ring reacted smoothly with iodonium ylides to give the corresponding diarylamines with good to excellent yields. …”
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  12. 2552
    “…An electron-withdrawing substituent on the Lewis base weakens this TB, while an electron-donating group has the opposite effect. The SiF(3) group transfers roughly halfway between the N of the acid and the O of the base without the aid of cooperative effects from a third entity.…”
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  13. 2553
    “…The substitution pattern of the 5/5′-positions was varied, covering the range from electron-donating to electron-withdrawing. The substituent effects of the absorption wavelengths of the ring-opened and the ring-closed isomers, which are interconverted by reversible 6π-electrocyclizations and cycloreversions, are studied by means of the spectroscopic Hammett equation and the Hammett–Brown equation. …”
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  14. 2554
    por Bjånesøy, Lise, Bye, Hege H.
    Publicado 2023
    “…However, the dominant behavior in both years was prosocial (greeting and donating) and Norwegians’ willingness to take asylum seekers perspective was similar in 2016 and 2022. …”
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  15. 2555
    “…Electron-withdrawing groups tend to induce blue shifts while electron-donating ones cause red shifts. This work highlights the capacity that the micro-modification of fluorescent materials provides for fine-tuning their properties such that they may be usefully applied to, for example, the study of luminescent materials.…”
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  16. 2556
    “…Under this catalytic system, aryl substrates with both electron-donating and electron-withdrawing substituents also gave the desired products in excellent yields under standardized conditions. …”
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  17. 2557
    “…The reaction conditions are mild and compatible with various electron-withdrawing and -donating substituents on the aryl rings as well as heterocycles and PAHs. …”
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  18. 2558
    “…A molecule with an unpaired electron can combine with a molecule capable of donating an electron. The donation of an electron is termed as oxidation whereas the gaining of an electron is called reduction. …”
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  19. 2559
    “…In the title compound, [Hf(C(9)H(6)NO)(4)]·2C(7)H(8), the hafnium metal centre is coordinated by four N,O-donating bidentate quinolin-8-olate ligands arranged to give a square-anti­prismatic coordination polyhedron with a slightly distorted dodeca­hedral geometry. …”
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  20. 2560
    por Ji, Hong-Fang
    Publicado 2010
    “…Moreover, the H-atom donating potential of DX is similar to zeaxanthin according to the theoretical homolytic O-H bond dissociation enthalpy. …”
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