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Journal articles on the topic 'Super-Electron-Donor'

Author: Grafiati

Published: 4 June 2025

Last updated: 15 July 2025

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1

Nozawa-Kumada, Kanako, Shungo Ito, Koto Noguchi, Masanori Shigeno, and Yoshinori Kondo. "Super electron donor-mediated reductive desulfurization reactions." Chemical Communications 55, no. 86 (2019): 12968–71. http://dx.doi.org/10.1039/c9cc06775b.

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2

Panetti, Grace B., Patrick J. Carroll, Michael R. Gau, Brian C. Manor, Eric J. Schelter, and Patrick J. Walsh. "Synthesis of an elusive, stable 2-azaallyl radical guided by electrochemical and reactivity studies of 2-azaallyl anions." Chemical Science 12, no. 12 (2021): 4405–10. http://dx.doi.org/10.1039/d0sc04822d.

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The super electron donor (SED) capabilities of 2-azaallyl anions has recently been discovered and applied to diverse reactivity; their structures and electron transfer characteristics are reported herein.

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3

Nozawa-Kumada, Kanako, Erina Abe, Shungo Ito, Masanori Shigeno, and Yoshinori Kondo. "Super electron donor-mediated reductive transformation of nitrobenzenes: a novel strategy to synthesize azobenzenes and phenazines." Organic & Biomolecular Chemistry 16, no. 17 (2018): 3095–98. http://dx.doi.org/10.1039/c8ob00271a.

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4

Garnier, Jean, Douglas W. Thomson, Shengze Zhou, Phillip I. Jolly, Leonard E. A. Berlouis, and John A. Murphy. "Hybrid super electron donors – preparation and reactivity." Beilstein Journal of Organic Chemistry 8 (July 3, 2012): 994–1002. http://dx.doi.org/10.3762/bjoc.8.112.

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Neutral organic electron donors, featuring pyridinylidene–imidazolylidene, pyridinylidene–benzimidazolylidene and imidazolylidene–benzimidazolylidene linkages are reported. The pyridinylidene–benzimidazolylidene and imidazolylidene–benzimidazolylidene hybrid systems were designed to be the first super electron donors to convert iodoarenes to aryl radicals at room temperature, and indeed both show evidence for significant aryl radical formation at room temperature. The stronger pyridinylidene–imidazolylidene donor converts iodoarenes to aryl anions efficiently under appropriate conditions (3 equiv of donor). The presence of excess sodium hydride base has a very important and selective effect on some of these electron-transfer reactions, and a rationale for this is proposed.

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5

Zi, Quanxing, Minyan Li, Jielun Cong, et al. "Super-Electron-Donor 2-Azaallyl Anions Enable Construction of Isoquinolines." Organic Letters 24, no. 9 (2022): 1786–90. http://dx.doi.org/10.1021/acs.orglett.2c00140.

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6

Vaid, Thomas P., and Melanie S. Sanford. "An organic super-electron-donor as a high energy density negative electrolyte for nonaqueous flow batteries." Chemical Communications 55, no. 74 (2019): 11037–40. http://dx.doi.org/10.1039/c9cc06080d.

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An organic “super-electron-donor” is well-suited as a negative electrolyte for nonaqueous redox flow batteries, with a highly negative 2<sup>+</sup>/0 reduction potential, a low mass per electron stored, and good solubility in CH<sub>3</sub>CN in both redox states.

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7

Humphries, Matthew E., Emily S. Wusterbarth, and Dennis L. Lichtenberger. "Weak acids with super-electron-donor dimetal complexes: Synergy in bifunctional activity." Polyhedron 158 (January 2019): 471–77. http://dx.doi.org/10.1016/j.poly.2018.11.001.

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8

Cumine, Florimond, Fabrizio Palumbo, and John A. Murphy. "Reduction of nitroarenes, azoarenes and hydrazine derivatives by an organic super electron donor." Tetrahedron 74, no. 38 (2018): 5539–45. http://dx.doi.org/10.1016/j.tet.2018.04.069.

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9

Jolly, Phillip I., Nadia Fleary-Roberts, Steven O'Sullivan, Eswararao Doni, Shengze Zhou, and John A. Murphy. "Reactions of triflate esters and triflamides with an organic neutral super-electron-donor." Organic & Biomolecular Chemistry 10, no. 30 (2012): 5807. http://dx.doi.org/10.1039/c2ob25116g.

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10

Schoenebeck, Franziska, John A. Murphy, Sheng-ze Zhou, Yoshitaka Uenoyama, Yves Miclo, and Tell Tuttle. "Reductive Cleavage of Sulfones and Sulfonamides by a Neutral Organic Super-Electron-Donor (S.E.D.) Reagent." Journal of the American Chemical Society 129, no. 44 (2007): 13368–69. http://dx.doi.org/10.1021/ja074417h.

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11

Murphy, John A, Sheng-ze Zhou, Douglas W Thomson, et al. "The Generation of Aryl Anions by Double Electron Transfer to Aryl Iodides from a Neutral Ground-State Organic Super-Electron Donor." Angewandte Chemie 119, no. 27 (2007): 5270–75. http://dx.doi.org/10.1002/ange.200700554.

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12

Murphy, John A, Sheng-ze Zhou, Douglas W Thomson, et al. "The Generation of Aryl Anions by Double Electron Transfer to Aryl Iodides from a Neutral Ground-State Organic Super-Electron Donor." Angewandte Chemie International Edition 46, no. 27 (2007): 5178–83. http://dx.doi.org/10.1002/anie.200700554.

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13

Murphy, John, Sylvain Cutulic, Hardeep Farwaha, Sheng-Ze Zhou, and Ewan Chrystal. "Metal-Free Reductive Cleavage of N-O Bonds in Weinreb Amides by an Organic Neutral Super-Electron Donor." Synlett 2008, no. 14 (2008): 2132–36. http://dx.doi.org/10.1055/s-2008-1078240.

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14

Cutulic, Sylvain P. Y., Neil J. Findlay, Sheng-Ze Zhou, Ewan J. T. Chrystal та John A. Murphy. "Metal-Free Reductive Cleavage of C−O σ-bonds in Acyloin Derivatives by an Organic Neutral Super-Electron-Donor†". Journal of Organic Chemistry 74, № 22 (2009): 8713–18. http://dx.doi.org/10.1021/jo901815t.

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15

Dilsizoglu Senol, Aysegul, Maura Samarani, Sylvie Syan та ін. "α-Synuclein fibrils subvert lysosome structure and function for the propagation of protein misfolding between cells through tunneling nanotubes". PLOS Biology 19, № 7 (2021): e3001287. http://dx.doi.org/10.1371/journal.pbio.3001287.

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The accumulation of α-synuclein (α-syn) aggregates in specific brain regions is a hallmark of synucleinopathies including Parkinson disease (PD). α-Syn aggregates propagate in a “prion-like” manner and can be transferred inside lysosomes to recipient cells through tunneling nanotubes (TNTs). However, how lysosomes participate in the spreading of α-syn aggregates is unclear. Here, by using super-resolution (SR) and electron microscopy (EM), we find that α-syn fibrils affect the morphology of lysosomes and impair their function in neuronal cells. In addition, we demonstrate that α-syn fibrils induce peripheral redistribution of lysosomes, likely mediated by transcription factor EB (TFEB), increasing the efficiency of α-syn fibrils’ transfer to neighboring cells. We also show that lysosomal membrane permeabilization (LMP) allows the seeding of soluble α-syn in cells that have taken up α-syn fibrils from the culture medium, and, more importantly, in healthy cells in coculture, following lysosome-mediated transfer of the fibrils. Moreover, we demonstrate that seeding occurs mainly at lysosomes in both donor and acceptor cells, after uptake of α-syn fibrils from the medium and following their transfer, respectively. Finally, by using a heterotypic coculture system, we determine the origin and nature of the lysosomes transferred between cells, and we show that donor cells bearing α-syn fibrils transfer damaged lysosomes to acceptor cells, while also receiving healthy lysosomes from them. These findings thus contribute to the elucidation of the mechanism by which α-syn fibrils spread through TNTs, while also revealing the crucial role of lysosomes, working as a Trojan horse for both seeding and propagation of disease pathology.

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16

Chen, Shiyue, Yujun Yang, Mingjun Zhang, et al. "Bioinspired Pd-Cu Alloy Nanoparticles as Accept Agent for Dye Degradation Performances." International Journal of Molecular Sciences 23, no. 22 (2022): 14072. http://dx.doi.org/10.3390/ijms232214072.

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Dye degradation is a key reaction in organic decomposition production through electron donor transferring. Palladium (Pd) is the best-known element for synthesis Pd-based catalyst, the surface status determines the scope of relative applications. Here we first prepare Pd-Cu alloy nanoparticles (NPs) by co-reduction of Cu(acac)2 (acac = acetylacetonate) and Pd(C5HF6O2)2 in the presence of sodium borohydride (NaBH4) and glutathione (GSH). The obtained Pd-Cu is about ~10 nm with super-hydrophilicity in aqueous mediums. The structural analysis clearly demonstrated the uniform distribution of Pd and Cu element. The colloidal solution keeps stability even during 30 days. Bimetallic Pd-Cu NPs shows biocompatibility in form of cell lines (IMEF, HACAT, and 239 T) exposed to colloidal solution (50 µg mL−1) for 2 days. It shows the catalytic multi-performance for dye degradation such as methyl orange (MO), rhodamine B (RhB), and methylene blue (MB), respectively. The as-synthesized nanoparticles showed one of the best multiple catalytic activities in the industrially important (electro)-catalytic reduction of 4-nitrophenol (4-NP) to corresponding amines with noticeable reduced reaction time and increased rate constant without the use of any large area support. In addition, it exhibits peroxidase-like activity in the 3, 3′, 5, 5′-Tetramethylbenzidine (TMB) color test and exhibit obvious difference with previous individual metal materials. By treated with high intensity focused ultrasound filed (HIFU), Pd-Cu NPs might be recrystallized and decreased the diameters than before. The enhancement in catalytic performance is observed obviously. This work expedites rational design and synthesis of the high-hierarchy alloy catalyst for biological and environment-friendly agents.

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17

Yong, Xue, Gang Wu, Wen Shi, et al. "Theoretical search for high-performance thermoelectric donor–acceptor copolymers: the role of super-exchange couplings." Journal of Materials Chemistry A 8, no. 41 (2020): 21852–61. http://dx.doi.org/10.1039/d0ta05765g.

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First-principles calculations of a series of representing D–A copolymers demonstrated the strong Super-Exchange couplings induce not only small hole effective mass but also weak electron-phonon couplings, and eventually high thermoelectric power factor.

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18

Deng, Yi-Hui, Qini Li, Manhong Li, Leifeng Wang, and Tian-Yu Sun. "Rational design of super reductive EDA photocatalyst for challenging reactions: a theoretical and experimental study." RSC Advances 14, no. 3 (2024): 1902–8. http://dx.doi.org/10.1039/d3ra07558c.

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We have developed a novel electron-donor-acceptor (EDA) photocatalyst through DFT-guided design. This photocatalyst is formed in situ from isoquinoline, a diboron reagent, and a weak base, and can be effectively utilized for challenging reactions.

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19

HALSTIAN, ANDRII, JURII VASHKURAK, and OLGA KOSENKO. "STUDY OF THE OZONE REACTION OF BENZYL ACETATE AND ITS DERIVATIVES IN THE LIQUID PHASE." Technologies and Engineering, no. 3 (October 6, 2022): 17–25. http://dx.doi.org/10.30857/2786-5371.2022.3.2.

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Purpose. Investigation of the kinetic regularities of the oxidation reaction of benzyl acetate and its derivatives by ozone in the liquid phase to determine the effect of alcohol on the ozonation of methylbenzenes by the methyl group. Methodоlogy. A 20 ml glass vessel equipped with a magnetic stirrer was loaded sequentially with a calculated amount of toluene or benzyl acetate of sulfuric acid and 10 ml of acetic anhydride. After dissolution, the reaction components were loaded into a thermostatic glass column. The column was connected to a reflux condenser, the resulting solution was cooled to the required temperature and ozone-containing gas was passed through it. Oxidation was carried out to a given degree of substrate conversion. The process was controlled by gas-liquid chromatography. The ozone concentration in the gas phase was determined spectrophotometrically on an SF-46 spectrophotometer. The concentration of toluene and its derivatives in the solution was determined by gas-liquid chromatography on the chromatograph with a flame-ionization detector on the column with a length of 1 m and a diameter of 3.5 mm, filled with a carrier – INERTON-Super (0.16–0.2 mm), with a fixed phase “FFAP” applied to it in the amount of 5% of the mass of the carrier under the following conditions: evaporator temperature is between 503–533 K; carrier gas velocity (nitrogen) – 2.0 L•h-1; hydrogen velocity – 1.8 L•h-1; air velocity – 18 L•h-1. Thermostating was carried out in the temperature range of 363–448 K, the temperature rise was carried out by the program - 8оC/min. Findings. The kinetic parameters of the ozonation reaction of benzylacetate and its derivatives in the liquid phase were studied. The rate constants of ozone reaction with benzyl acetate at different temperatures and the influence of the structure of substituents on its reactivity were determined. It is shown that the presence of electron-acceptor substituents increases the selectivity of oxidation along the side chain to 54%, and electron-donor – to a decrease of up to 8%. The kinetics of the reaction of ozone with benzyl acetate at a temperature of 293 K is described by a second-order equation that assumes a non-chain oxidation mechanism. At elevated temperatures, the chain consumption of ozone becomes noticeable due to its reaction with the products of destruction of the aromatic ring. Originality. For the first time, the kinetics of the oxidation reaction of benzyl acetate and its substituted ozone in the liquid phase, which significantly affects the equilibrium concentration of alcohols in the oxidation of the corresponding methylbenzene. It was found that depending on the structure of acylated benzyl alcohol, the oxidation selectivity along the side chain is from 8 to 54%. The reaction rate constants are determined and the mechanism of ozonation of benzyl acetate is proposed, which will allow optimizing the parameters for the development of technological bases for the production of benzyl alcohol and its derivatives by ozonation of methylbenzenes in the liquid phase. Practical value. The results are the basis for the development of low-temperature method for the synthesis of benzyl alcohols used in the production of active pharmaceutical ingredients.

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20

Xu, Yashi, Wenbo Ming, Libo Xiang, and Qing Ye. "A Bottleable Super-Electron-Donor for Catalytic Borylation of Aryl Halides." Chemical Communications, 2023. http://dx.doi.org/10.1039/d3cc01435e.

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[(Dpp-bian)B(DMAP)]2 (dpp-bian = 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene, DMAP = 4-(dimethylamino)pyridine), a bottleable super electron donor (SED), was demonstrated to serve as a SED catalyst in the borylation of aryl iodides, bromides, and the...

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21

Lai, Runchen, Yangyi Liu, Xiao Luo, et al. "Shallow distance-dependent triplet energy migration mediated by endothermic charge-transfer." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-21561-1.

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AbstractConventional wisdom posits that spin-triplet energy transfer (TET) is only operative over short distances because Dexter-type electronic coupling for TET rapidly decreases with increasing donor acceptor separation. While coherent mechanisms such as super-exchange can enhance the magnitude of electronic coupling, they are equally attenuated with distance. Here, we report endothermic charge-transfer-mediated TET as an alternative mechanism featuring shallow distance-dependence and experimentally demonstrated it using a linked nanocrystal-polyacene donor acceptor pair. Donor-acceptor electronic coupling is quantitatively controlled through wavefunction leakage out of the core/shell semiconductor nanocrystals, while the charge/energy transfer driving force is conserved. Attenuation of the TET rate as a function of shell thickness clearly follows the trend of hole probability density on nanocrystal surfaces rather than the product of electron and hole densities, consistent with endothermic hole-transfer-mediated TET. The shallow distance-dependence afforded by this mechanism enables efficient TET across distances well beyond the nominal range of Dexter or super-exchange paradigms.

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22

Eymann, Léonard Y. M., Paul Varava, Andrei M. Shved, et al. "Synthesis of Organic Super-Electron-Donors by Reaction of Nitrous Oxide with N-Heterocyclic Olefins." October 17, 2019. https://doi.org/10.1021/jacs.9b10660.

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The reaction of nitrous oxide (N2O) with N-heterocyclic olefins (NHOs) results in cleavage of the N–O bond and formation of azo-bridged NHO dimers. The latter represent very electron-rich compounds with a low ionization energy. Cyclic voltammetry studies show that the dimers can be classified as new organic super-electron-donors, with a reducing power similar to what is found for tetraazafulvalene derivatives. Mild oxidants are able to convert the neutral dimers into radical cations, which can be isolated. Further oxidation gives stable dications.

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23

Dunlap, Megan K., Duncan P. Ryan, Peter Marvin Goodwin, et al. "Nanoscale imaging of quantum dot dimers using time-resolved super-resolution microscopy combined with scanning electron microscopy." Nanotechnology, April 3, 2023. http://dx.doi.org/10.1088/1361-6528/acc9c9.

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Abstract Time-resolved super-resolution microscopy was used in conjunction with scanning electron microscopy to image individual colloidal CdSe/CdS semiconductor quantum dots (QD) and QD dimers. The photoluminescence (PL) lifetimes, intensities, and structural parameters were acquired with nanometer scale spatial resolution and sub-nanosecond time resolution. The combination of these two techniques was more powerful than either alone, enabling us to resolve the PL properties of individual QDs within QD dimers as they blinked on and off, measure interparticle distances, and identify QDs that may be participating in energy transfer. The localization precision of our optical imaging technique was ~3 nm, low enough that the emission from individual QDs within the dimers could be spatially resolved. While the majority of QDs within dimers acted as independent emitters, at least one pair of QDs in our study exhibited lifetime and intensity behaviors consistent with resonance energy transfer from a shorter lifetime and lower intensity donor QD to a longer lifetime and higher intensity acceptor QD. For this case, we demonstrate how the combined super-resolution optical imaging and scanning electron microscopy data can be used to characterize the energy transfer rate.

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24

Wang, Miao, Hui‐Ying Ren, Shan Jiang, et al. "Rongalite‐Induced Cascade CC/CO Bond Formation from Indoles, Difluoromethyl Bromides, and H₂O via a Triple Cleavage Process." Advanced Synthesis & Catalysis, June 23, 2025. https://doi.org/10.1002/adsc.9604.

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Herein, an efficient rongalite‐induced cascade CC/CO bond formation reaction involving indoles, difluoromethyl bromides, and H2O for the synthesis of indole‐3‐glyoxylates and indole‐3‐yl‐glyoxylamides has been developed. Mechanistic studies suggest that rongalite may act as a precursor of a super electron donor to activate difluoromethyl bromides for CC bond formation, as well as a source of protons to facilitate the cleavage of the CF bond for CO bond formation. The cascade reaction exhibits remarkable efficiency, broad substrate compatibility, and scalability. Moreover, the products can be further transformed into valuable heterocyclic structures and pharmacologically active compounds.

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25

Schoenebeck, Franziska, John A. Murphy, Sheng-ze Zhou, Yoshitaka Uenoyama, Yves Miclo, and Tell Tuttle. "ChemInform Abstract: Reductive Cleavage of Sulfones and Sulfonamides by a Neutral Organic Super-Electron-Donor (S.E.D.) Reagent." ChemInform 39, no. 8 (2008). http://dx.doi.org/10.1002/chin.200808044.

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26

Sato, K., H. Katayama-Yoshida, and T. Yamamoto. "Materials Design for the Low-Resistivity in p-Type ZnO and Transparent Ferromagnet With Transition Metal Atom Doped ZnO: Prediction vs. Experiment." MRS Proceedings 623 (2000). http://dx.doi.org/10.1557/proc-623-65.

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AbstractWe propose a new valence control method of codoping with doping Ga (or In, Al) donor and N acceptor at the same time for the fabrication of a low-resistivity p-type ZnO based upon the ab initio calculation. We compare our predicted materials design to fabricate a low resistivity p-type ZnO with the recent successful codoping. Based upon the success in the valence control of ZnO, we propose a materials design to fabricate the ferromagnetic Mn-doped p-type ZnO upon codoping. It is shown that the anti-ferromagnetic state is more stable than the ferromagnetic ones due to the anti-ferromagnetic super-exchange interaction, if we have no mobile holes. Upon codoping with the mobile holes, it is shown that the ferromagnetic state becomes more stable than the anti-ferromagnetic ones due to the ferromagnetic double-exchange interaction. However, it is shown that the anti-ferromagnetic state is more stable upon electron doping due to the anti-ferromagnetic super-exchange interaction. We calculate the chemical trends of the magnetic state in V-, Cr-, Fe-, Co-, and Ni-doped (25 at%) in ZnO, and predict that all of these materials show the ferromagnetic ground states without electron and hole doping.

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27

Hoffmann, A., H. Born, A. Näser, et al. "Native Defect Characterization in ZnGeP2." MRS Proceedings 607 (1999). http://dx.doi.org/10.1557/proc-607-373.

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AbstractElectron paramagnetic resonance (EPR) as well as time-resolved and time-integrated photoluminescence (PL) are used to characterize the defect centers in ZnGeP2 bulk crystals. The samples, as-grown, electron-irradiated and annealed, reveal a strong intensity dependence of the VZn-correlated EPR-transitions. Photo-EPR experiments show that this intensity behavior is mainly caused by a recharging of the VZn centers owing to the preparation induced shift of the Fermi-level. The luminescence spectra show a broad infrared emission with peak position at 1.23 eV that exhibits features of classical donor-acceptor recombination. The hyperbolic decay characteristics, investigated in energy range from 1.2 eV up to 1.5eV, suggest that this broad emission band is related to one energetic recombination center. This recombination is interpreted to be between donor-acceptor states related to residual disorder on the cation sublattice that is retained in metastable equilibrium during the formation of the chalcopyrite structure. The emission decay behavior in the energy range from 1.2 eV up to 1.6 eV is characterized by two hyperbolic time constants, and explained as the super-composition of the decays from the broad emission center peaked at 1.2 eV and an additional donor-acceptor recombination centers at 1.4 eV.

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Sil, Swagata, Athul Santha Bhaskaran, Soumi Chakraborty, Bhagat Singh, Rositha Kuniyil, and Swadhin K. Mandal. "Reduced-Phenalenyl-Based Molecule as a Super Electron Donor for Radical-Mediated C–N Coupling Catalysis at Room Temperature." Journal of the American Chemical Society, November 30, 2022. http://dx.doi.org/10.1021/jacs.2c09225.

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Cutulic, Sylvain P. Y., John A. Murphy, Hardeep Farwaha, Sheng-Ze Zhou, and Ewan Chrystal. "ChemInform Abstract: Metal-Free Reductive Cleavage of N-O Bonds in Weinreb Amides by an Organic Neutral Super-Electron Donor." ChemInform 39, no. 52 (2008). http://dx.doi.org/10.1002/chin.200852032.

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Liu, Feng, Yuanyuan Jiang, Renjie Xu, et al. "Nonfullerene Acceptor Featuring Unique Self‐Regulation Effect for Organic Solar Cells with 19% Efficiency." Angewandte Chemie International Edition, December 5, 2023. http://dx.doi.org/10.1002/anie.202313791.

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The blend nanomorphology of electron‐donor (D) and ‐acceptor (A) materials is of vital importance to achieving highly efficient organic solar cells (OSCs). Exogenous additives especially aromatic additives are always needed to further optimize the nanomorphology of blend films, which is hardly compatible with industrial manufacture. Herein, we proposed a unique approach to meticulously modulate the aggregation behavior of NFAs in both crystal and thin film nanomorphology via self‐regulation effect. Nonfullerene acceptor Z9 was designed and synthesized by tethering phenyl groups on the inner side chains of the Y6 backbone. Compared with Y6, the tethered phenyl groups participated in the molecular aggregation via the π‐π stacking of phenyl‐phenyl and phenyl‐2‐(5,6‐difluoro‐3‐oxo‐2,3‐dihydro‐1H‐inden‐1‐ylidene)malononitrile (IC‐2F) groups, which induced 3D charge transport with phenyl‐mediated super‐exchange electron coupling. Moreover, ordered molecular packing with suitable phase separation was observed in Z9‐based blend films. High power conversion efficiencies (PCEs) of 19.0% (certified PCE of 18.6%) for Z9‐based devices were achieved without additives, indicating the great potential of the self‐regulation strategy in NFA design.

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Liu, Feng, Yuanyuan Jiang, Renjie Xu, et al. "Nonfullerene Acceptor Featuring Unique Self‐Regulation Effect for Organic Solar Cells with 19% Efficiency." Angewandte Chemie, December 5, 2023. http://dx.doi.org/10.1002/ange.202313791.

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The blend nanomorphology of electron‐donor (D) and ‐acceptor (A) materials is of vital importance to achieving highly efficient organic solar cells (OSCs). Exogenous additives especially aromatic additives are always needed to further optimize the nanomorphology of blend films, which is hardly compatible with industrial manufacture. Herein, we proposed a unique approach to meticulously modulate the aggregation behavior of NFAs in both crystal and thin film nanomorphology via self‐regulation effect. Nonfullerene acceptor Z9 was designed and synthesized by tethering phenyl groups on the inner side chains of the Y6 backbone. Compared with Y6, the tethered phenyl groups participated in the molecular aggregation via the π‐π stacking of phenyl‐phenyl and phenyl‐2‐(5,6‐difluoro‐3‐oxo‐2,3‐dihydro‐1H‐inden‐1‐ylidene)malononitrile (IC‐2F) groups, which induced 3D charge transport with phenyl‐mediated super‐exchange electron coupling. Moreover, ordered molecular packing with suitable phase separation was observed in Z9‐based blend films. High power conversion efficiencies (PCEs) of 19.0% (certified PCE of 18.6%) for Z9‐based devices were achieved without additives, indicating the great potential of the self‐regulation strategy in NFA design.

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32

Cutulic, Sylvain P. Y., Neil J. Findlay, Sheng-Ze Zhou, Ewan J. T. Chrystal та John A. Murphy. "ChemInform Abstract: Metal-Free Reductive Cleavage of C-O σ-Bonds in Acyloin Derivatives by an Organic Neutral Super-Electron-Donor." ChemInform 41, № 13 (2010). http://dx.doi.org/10.1002/chin.201013089.

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33

Jaiswal, Akash Deep, Jyoti Chourasia, Manas Mahato, et al. "Metal Ion‐Endows Orange‐Red Light Fluorogenicity of an Imine‐Linkage Probe Embracing Simple Electron Donor‐Acceptor Units." ChemistrySelect 9, no. 40 (2024). http://dx.doi.org/10.1002/slct.202403046.

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AbstractSelectively tracking and quantifying Al3+ ions is a significant concern to the scientific communities. In the present article, an imine‐linkage electron donor‐acceptor system, DSAN, (E)‐5‐(diethylamino)‐2‐(((2‐hydroxy‐4‐nitrophenyl)imino)methyl)phenol has been introduced which shows Al3+ ions endows red light fluorogenicity which could be utilized for sequential and detection of Al3+ ions and picric acid (PA) in both solid and liquid phases. Upon addition of Al3+ ions into the DSAN solution, an orange‐red fluorescence is noticed at 604 nm caused by the formation of Al3+ ions chelated DSAN complex having detection and quantification limit 0.2 μM and 0.62 μM respectively in dimethylformamide (DMF) medium. The complex formation is found to be a 1 : 1 stoichiometric ratio as evident from Job's plot analysis. Also, the binding affinity value is found to be 3.24×104 M−1 demonstrating a high affinity of DSAN towards Al3+ ions. This orange‐red fluorescence of Al3+ ions chelated DSAN complex solution is quenched due to the introduction of PA. A super handy paper‐strips‐based detection tool also been fabricated utilizing DSAN which could be employed to track trace amounts of Al3+ ions in the solid state. The mechanism involved in the detection of Al3+ ions is elucidated by density functional theoretical analysis.

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Ruidas, Pradip, Soumen Kumar Dubey, Sk Abdul Hafiz, et al. "Chiral Self‐Assembly of a Pyrene‐Appended Glutamylalanine Dipeptide and Its Charge Transfer Complex: Fabrication of Magneto‐Responsive Hydrogels and Human Cell Imaging." Macromolecular Rapid Communications, November 15, 2024. http://dx.doi.org/10.1002/marc.202400672.

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AbstractThe formation of a robust, self‐healing hydrogel of a novel pyrene‐appended dipeptide, Py‐E‐A (L‐Glutamic acid short as E; L‐Alanine short as A) is demonstrated. Detailed studies suggest that nanoscopic fibers with a length of several micrometers have formed by chiral self‐organization of Py‐E‐A gelators. Additionally, live human PBMCs imaging is shown using the Py‐E‐A fluorophore. Interestingly, electron‐rich Py‐E‐A couples with electron‐deficient NDI‐β‐A (β‐Alanine short as β‐A) by charge transfer (CT) complexation and forms stable deep violet‐colored CT super‐hydrogel. X‐ray diffraction, DFT, and 2D ROESY NMR studies suggest lamellar packing of both Py‐E‐A and the alternating CT stack in its hydrogel matrixes. Supramolecular chirality of the Py‐E‐A donor can be altered by adding an achiral acceptor NDI‐β‐A. Notably, the fibers of the CT hydrogel are found to be even thinner than the Py‐E‐A fibers, which, in turn, makes the CT hydrogel more tolerant to the applied strain. Further, the self‐healing and injectable properties of the hydrogels are shown. Finally, the magneto‐responsive behavior of the Py‐E‐A and CT hydrogels loaded with spin‐canted Cu‐ferrite (Cu0.6Zn0.4Fe2O4) nanoparticles (NPs) is demonstrated. The presence of magnetic NPs within the hydrogels has changed the fibrous morphology to rod‐like nanoclusters.

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Peng, Xiaogai, Wenjin Cao, Zhubin Hu, et al. "Observation of a super-tetrahedral cluster of acetonitrile-solvated dodecaborate dianion via dihydrogen bonding." Journal of Chemical Physics 160, no. 5 (2024). http://dx.doi.org/10.1063/5.0186614.

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We launched a combined negative ion photoelectron spectroscopy and multiscale theoretical investigation on the geometric and electronic structures of a series of acetonitrile-solvated dodecaborate clusters, i.e., B12H122−·nCH3CN (n = 1–4). The electron binding energies of B12H122−·nCH3CN are observed to increase with cluster size, suggesting their enhanced electronic stability. B3LYP-D3(BJ)/ma-def2-TZVP geometry optimizations indicate each acetonitrile molecule binds to B12H122− via a threefold dihydrogen bond (DHB) B3–H3 ⁝⁝⁝ H3C–CN unit, in which three adjacent nucleophilic H atoms in B12H122− interact with the three methyl hydrogens of acetonitrile. The structural evolution from n = 1 to 4 can be rationalized by the surface charge redistributions through the restrained electrostatic potential analysis. Notably, a super-tetrahedral cluster of B12H122− solvated by four acetonitrile molecules with 12 DHBs is observed. The post-Hartree–Fock domain-based local pair natural orbital- coupled cluster singles, doubles, and perturbative triples [DLPNO-CCSD(T)] calculated vertical detachment energies agree well with the experimental measurements, confirming the identified isomers as the most stable ones. Furthermore, the nature and strength of the intermolecular interactions between B12H122− and CH3CN are revealed by the quantum theory of atoms-in-molecules and the energy decomposition analysis. Ab initio molecular dynamics simulations are conducted at various temperatures to reveal the great kinetic and thermodynamic stabilities of the selected B12H122−·CH3CN cluster. The binding motif in B12H122−·CH3CN is largely retained for the whole halogenated series B12X122−·CH3CN (X = F–I). This study provides a molecular-level understanding of structural evolution for acetonitrile-solvated dodecaborate clusters and a fresh view by examining acetonitrile as a real hydrogen bond (HB) donor to form strong HB interactions.

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Yan, Chuanfang, Jinlong Zhou, Ao Xu, Hongping Long, Hang Luo, and Sheng Chen. "Sharply Improved Electrical Insulation of Polyimide Dielectrics at Elevated Temperatures by Charge Reassignment Engineering." Small, April 22, 2025. https://doi.org/10.1002/smll.202501050.

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AbstractThe electrical insulation of traditional polyimides (PI) dielectrics for capacitive energy storage will be significantly destroyed at elevated temperatures due to enhanced conductive loss caused by strong conjugated effect and charge transfer (CT) interactions. To address this issue, novel PI dielectrics are designed and synthesized based on charge reassignment engineering. Beneficial from non‐planar dianhydride and poor conjugated diamine, the main chain of synthesized PI (semi‐aromatic NA2‐alt‐OB1) significantly reduces the conjugated effect. Alicyclic dianhydride structural unit endows NA2‐alt‐OB1 with a large bandgap width of 5.22 eV and a high LUMO energy level (−0.79 eV), making the polymer resistant to both excited and injected electrons. More importantly, this work intelligently combines trifluoromethyl and dicyclohexyl to achieve weak charge reassignment on donor–acceptor electron sites in the polymer chain, effectively decreasing CT effect. Consequently, a super‐high Weibull breakdown strength value of 862 and 691 MV m−1 at room temperature and 230 °C respectively is achieved. Semi‐aromatic NA2‐alt‐OB1 obtains a high discharge energy density of 6.43 J cm−3 at 230 °C, which is greater than that of lots of reported PI dielectrics. This work offers an important strategy to break the adverse correlation between electrical insulation and heating resistance of PI dielectrics, promoting their application in capacitive energy storage at elevated temperatures.

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