Angewandte Chemie (International ed. in English)最新文献

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Photochargeable Nanopores in Gas Permselective Membrane. 气体透选膜的光充电纳米孔。
IF 16.9
Angewandte Chemie (International ed. in English) Pub Date : 2025-09-22 DOI: 10.1002/anie.202513377
Arun Kumar Manna, Susmita Kundu, Komal Jindal, Dipak Maity, Suvendu Panda, Preeti Yadav, Girish Mishra, Sounak Chatterjee, Nivedita Sikdar, Jagannath Mondal, Soumya Ghosh, Tharangattu N Narayanan, Ritesh Haldar
{"title":"Photochargeable Nanopores in Gas Permselective Membrane.","authors":"Arun Kumar Manna, Susmita Kundu, Komal Jindal, Dipak Maity, Suvendu Panda, Preeti Yadav, Girish Mishra, Sounak Chatterjee, Nivedita Sikdar, Jagannath Mondal, Soumya Ghosh, Tharangattu N Narayanan, Ritesh Haldar","doi":"10.1002/anie.202513377","DOIUrl":"https://doi.org/10.1002/anie.202513377","url":null,"abstract":"<p><p>Gas permselective membranes are inherently constrained by a trade-off between permeability and selectivity. Overcoming this limitation is key to enabling broader industrial adoption, and advanced porous materials-particularly metal-organic framework (MOF)-has emerged as promising candidate. Yet, to truly rival established separation technologies such as, distillation, pressure swing adsorption and chemisorption, innovative design strategies remain essential. Traditionally, efforts to surpass the trade-off have focused on regulating porosity, pore architecture, pore surface chemical functionality, and macroscopic transport pathways (particle morphology). These modifications are achieved either through bottom-up synthetic approaches or by employing external stimuli such as light, pressure, or electric fields. In this work, we introduce a photochargeable membrane that enhances gas permselectivity through precise, molecule-specific interactions-without altering the underlying porous architecture. This is achieved by incorporating a nanoporous MOF, constructed from redox-active organic ligands, as filler in a mixed matrix membrane. Upon photoexcitation, ligand-ligand charge separation yields stable pore surface charges, facilitating selective interactions with quadrupolar CO<sub>2</sub>. This specific interaction enhances CO<sub>2</sub>/N<sub>2</sub> and CO<sub>2</sub>/CH<sub>4</sub> permselectivity, surpassing the Robeson upper bound. The proof-of-concept can be explored for mixed and high purity gas feed preparation.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202513377"},"PeriodicalIF":16.9,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145126452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bifunctional Probes Reveal the Rules of Intracellular Ether Lipid Transport. 双功能探针揭示细胞内醚脂质转运的规律。
IF 16.9
Angewandte Chemie (International ed. in English) Pub Date : 2025-09-21 DOI: 10.1002/anie.202513360
Kristin Böhlig, Juan Manuel Iglesias-Artola, Antonino Asaro, H Mathilda Lennartz, Anna C Link, Björn Drobot, André Nadler
{"title":"Bifunctional Probes Reveal the Rules of Intracellular Ether Lipid Transport.","authors":"Kristin Böhlig, Juan Manuel Iglesias-Artola, Antonino Asaro, H Mathilda Lennartz, Anna C Link, Björn Drobot, André Nadler","doi":"10.1002/anie.202513360","DOIUrl":"https://doi.org/10.1002/anie.202513360","url":null,"abstract":"<p><p>Ether glycerophospholipids bear a long chain alcohol attached via an alkyl or vinyl ether bond at the sn1 position of the glycerol backbone. Ether lipids play a significant role in physiology and human health. However, their cellular functions remain largely unknown due to a lack of tools for identifying their subcellular localization and interacting proteins. Here, we address this methodological gap by synthesizing minimally modified bifunctional ether lipid probes by introducing diazirine and alkyne groups. To interrogate the subcellular kinetics of intracellular ether lipid transport in mammalian cells, we used a combination of fluorescence imaging, machine learning-assisted image analysis, and mathematical modelling. We find that alkyl-linked ether lipids are transported up to twofold faster than vinyl-linked species (plasmalogens), pointing to yet undiscovered cellular lipid transport machinery able to distinguish between linkage types differing by as little as two hydrogen atoms. We find that ether lipid transport predominantly occurs via non-vesicular pathways, with varying contributions from vesicular mechanisms between cell types. Altogether, our results suggest that differential recognition of alkyl- and vinyl ether lipids by lipid transfer proteins contributes to their distinct biological functions. In the future, the probes reported here will enable studying ether lipid biology in much greater detail through identification of interacting proteins and in-depth characterization of intracellular ether lipid dynamics.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202513360"},"PeriodicalIF":16.9,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145116037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Organocatalytic Microfluidic Double-Layer Capacitors. 有机催化微流控双层电容器。
IF 16.9
Angewandte Chemie (International ed. in English) Pub Date : 2025-09-21 DOI: 10.1002/anie.202517078
Shen-Yi Guo, Miguel Paraja, Augustina Jozeliūnaitė, Manuel Gallardo-Villagrán, Qing-Xia Zhang, Alenka Marsalek, Naomi Sakai, Stefan Matile
{"title":"Organocatalytic Microfluidic Double-Layer Capacitors.","authors":"Shen-Yi Guo, Miguel Paraja, Augustina Jozeliūnaitė, Manuel Gallardo-Villagrán, Qing-Xia Zhang, Alenka Marsalek, Naomi Sakai, Stefan Matile","doi":"10.1002/anie.202517078","DOIUrl":"https://doi.org/10.1002/anie.202517078","url":null,"abstract":"<p><p>Ideas to use external electric fields to enable, accelerate and direct the movement of electrons during chemical reactions are not new. Theory and experiments under special conditions predict that electric-field catalysis (EFC) from externally applied fields could change the way we make molecules. The challenge is the incompatibility with organic synthesis under scalable bulk conditions. Access to applied electric fields (AEFs) > 1 V nm<sup>-1</sup>, predicted as necessary for direct transition-state stabilization, is not possible even with electromicrofluidic systems, where the distance between the plate electrodes is minimized. Therefore, we decided to shift our attention from the applied fields to their consequences. We consider electrical double layers (EDLs) that form within a few nanometers from the plate electrodes as engineerable supramolecular electrodes. Applying lessons from cell-penetrating peptides (CPPs), we report supramolecular electrodes with effective electric fields (EEFs) that exceed applied fields by more than five million. According to a proline-catalyzed aldol condensation installed as benchmark reaction, those engineered from polyarginine and pyrenebutyrate are most active for EFC, exactly as in cellular uptake. With the best supramolecular electrodes, EFC triples the yield of one of the most optimized reactions in organocatalysis. New methods to access scalable EFC open up broad perspectives in organic synthesis and beyond.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202517078"},"PeriodicalIF":16.9,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145116052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Protein Cage Inspired Bridge-Island Effect Enables Low-Temperature Targeted Self-Assembly of Hierarchical Hollow Polyanionic Cathodes for Sodium-Ion Batteries. 蛋白质笼启发的桥岛效应实现了钠离子电池分层中空聚阴离子阴极的低温定向自组装。
IF 16.9
Angewandte Chemie (International ed. in English) Pub Date : 2025-09-18 DOI: 10.1002/anie.202511732
Shuqiang Li, Xueying Lu, Yu Li, Yuteng Gong, Qiannan Zhou, Huaizhi Wang, Feng Wu, Chuan Wu, Ying Bai
{"title":"Protein Cage Inspired Bridge-Island Effect Enables Low-Temperature Targeted Self-Assembly of Hierarchical Hollow Polyanionic Cathodes for Sodium-Ion Batteries.","authors":"Shuqiang Li, Xueying Lu, Yu Li, Yuteng Gong, Qiannan Zhou, Huaizhi Wang, Feng Wu, Chuan Wu, Ying Bai","doi":"10.1002/anie.202511732","DOIUrl":"https://doi.org/10.1002/anie.202511732","url":null,"abstract":"<p><p>Achieving targeted morphological control over polyanionic cathodes under mild conditions remains a critical challenge. Drawing inspiration from the self-assembly of protein cages, we propose an ionic weaving strategy for the low-temperature fabrication of hierarchical hollow Na<sub>3</sub>V<sub>2</sub>O<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>F (NVOPF) cathodes. By introducing low-cost monosodium glutamate as a template precursor, the derived glutamate species self-assemble into hollow micellar soft templates under the coordination bridging of VO<sup>2+</sup> ions. Subsequently, PO<sub>4</sub> <sup>3-</sup>, Na<sup>+</sup>, and F<sup>-</sup> ions are electrostatically attracted to VO<sup>2+</sup>-anchored microdomains, triggering island-like nucleation. The VO<sup>2+</sup>-mediated bridge-island effect facilitates both the construction of microscale hollow soft templates and the localized nucleation of nanocrystals, thereby enabling micro/nano hierarchical hollow morphology control of NVOPF under mild conditions. Moreover, the self-assembly mechanism underlying hollow soft template formation is systematically elucidated for the first time through a combination of soft matter probing techniques, including fluorescence microscopy and negative staining, supported by density functional theory calculations and all-atom molecular dynamics simulations. The resulting NVOPF-based cathode exhibits ultra-stable high-rate cycling and excellent low-temperature durability. This work establishes a new paradigm that integrates supramolecular self-assembly with metal-ion coordination chemistry for the rational design of fast-charging polyanionic cathode materials.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202511732"},"PeriodicalIF":16.9,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Triangular Nanotoroids Self-Assembled from Polypeptide Homopolymers: The Formation Route and Mechanisms. 多肽均聚物自组装的三角形纳米环:形成途径和机制。
IF 16.9
Angewandte Chemie (International ed. in English) Pub Date : 2025-09-18 DOI: 10.1002/anie.202508525
Yue Du, Yimeng Li, Ruiqi Jin, Jiaping Lin, Chunhua Cai
{"title":"Triangular Nanotoroids Self-Assembled from Polypeptide Homopolymers: The Formation Route and Mechanisms.","authors":"Yue Du, Yimeng Li, Ruiqi Jin, Jiaping Lin, Chunhua Cai","doi":"10.1002/anie.202508525","DOIUrl":"https://doi.org/10.1002/anie.202508525","url":null,"abstract":"<p><p>Polymer nanotoroids have attracted increasing attentions recently. The topology of the nanotoroids is mainly limited to circular form, while noncircular forms are rarely observed. The preparation method and formation mechanism for noncircular nanotoroids are not well governed. Reported here is a finding of triangular nanotoroids self-assembled from hydrophobic polypeptides in solution. With the addition of water, the polypeptides become less soluble in the solution, they self-assemble into nanofibers. When more water is introduced, the polypeptides tend to shrink to decrease their interfacial area, which generates internal twist stress driving the nanofibers convolve into circular nanotoroids. Under further water additions, the polypeptides further shrink to decrease their interfacial area. As a result, the circular nanotoroids bend and fold into triangular nanotoroids, with saddle-like and V-shaped nanotoroids as the intermediates. This work presents a first example regarding triangular nanotoroids formed by polymers, and demonstrates an effective way by generating internal stress to regulating the topology of the polymer nanotoroids.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202508525"},"PeriodicalIF":16.9,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Broadly Tunable Liquid-State Lasers and Solid-State Single-Longitudinal-Mode Near-Infrared Lasers Utilizing Halogen-Doped Graphene Quantum Dots. 利用卤素掺杂石墨烯量子点的宽可调谐液态激光器和固态单纵模近红外激光器。
IF 16.9
Angewandte Chemie (International ed. in English) Pub Date : 2025-09-18 DOI: 10.1002/anie.202507405
Shurong Ding, Haoqiang Song, Yongsheng Hu, Yongqiang Zhang, Siyu Lu
{"title":"Broadly Tunable Liquid-State Lasers and Solid-State Single-Longitudinal-Mode Near-Infrared Lasers Utilizing Halogen-Doped Graphene Quantum Dots.","authors":"Shurong Ding, Haoqiang Song, Yongsheng Hu, Yongqiang Zhang, Siyu Lu","doi":"10.1002/anie.202507405","DOIUrl":"https://doi.org/10.1002/anie.202507405","url":null,"abstract":"<p><p>Understanding the lasing mechanism of graphene quantum dots (GQDs) is crucial for enhancing their gain characteristics and developing high-performance laser devices. In this study, we investigated ultrafast excited-state dynamics to determine whether Auger recombination is the primary factor influencing the laser emission of GQDs. By effectively inhibiting Auger recombination through halogen-doping of near-infrared (NIR) GQDs, we could extend the Auger lifetime from 183.41 to 239.41 ps, prolong the gain lifetime from 170.65 to 216.42 ps, and significantly reduce the laser threshold from 159.69 to 14.07 mJ cm<sup>-</sup> <sup>2</sup>. Notably, fluorine-doped GQDs exhibited a tunable emission spectrum from 638 to 751 nm and demonstrated exceptional stability under ambient conditions. High-gain NIR composite films were fabricated by combining fluorine-doped GQDs and polyimide. Based on this, high-quality planar distributed Bragg reflector microcavities with resonant peaks matching the amplified spontaneous emission peaks of the films were prepared. Upon integration with the film, solid-state GQDs could achieve single-longitudinal-mode (SLM) NIR laser emission at 711 nm with a linewidth of 0.068 nm. This advancement can facilitate the sustainable development of miniaturized lasers.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202507405"},"PeriodicalIF":16.9,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ion-Dipole Interaction Induced Rigid-Flexible Coupling SEI for Ultrastable Sodium Storage of Microsized Sn Anode. 离子偶极相互作用诱导的刚柔耦合SEI用于微尺寸锡阳极的超稳定钠存储。
IF 16.9
Angewandte Chemie (International ed. in English) Pub Date : 2025-09-18 DOI: 10.1002/anie.202515062
Mingyue Li, Simi Sui, Xunzhu Zhou, Shenxu Chu, Qian Yang, Genliang Yu, Xuejie Bai, Tongtong Huo, Kai Liu, Jie Xu, Ting Lv, Xiaobo Zhang, Lin Li, Kaixiang Lei, Shijian Zheng
{"title":"Ion-Dipole Interaction Induced Rigid-Flexible Coupling SEI for Ultrastable Sodium Storage of Microsized Sn Anode.","authors":"Mingyue Li, Simi Sui, Xunzhu Zhou, Shenxu Chu, Qian Yang, Genliang Yu, Xuejie Bai, Tongtong Huo, Kai Liu, Jie Xu, Ting Lv, Xiaobo Zhang, Lin Li, Kaixiang Lei, Shijian Zheng","doi":"10.1002/anie.202515062","DOIUrl":"https://doi.org/10.1002/anie.202515062","url":null,"abstract":"<p><p>Tin (Sn) anode has been considered as a promising candidate for sodium-ion batteries due to its high theoretical capacity and suitable operating potential. However, they suffer from substantial volume variation during charge/discharge processes, which leads to fast capacity degradation. Herein, we propose a strategy combining solvents with different solvation abilities to regulate ion-dipole interactions, establishing an anion and solvent co-dominated solvation chemistry. This unique solvation chemistry triggers the cooperative decomposition of anions and solvents, generating a mechanically robust yet chemically stable organic-inorganic hybrid solid-electrolyte interphase (SEI) with balanced rigidity and flexibility. The stable SEI effectively mitigates volume variation during charge/discharge processes and suppresses successive electrolyte decomposition. Therefore, the microsized Sn anode exhibits superior cycling stability (high capacity retention of 83.31% after 1000 cycles) and rate performance (270.4 mAh g<sup>-1</sup> at 4.0 A g<sup>-1</sup>). More importantly, the Sn||Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> full cell achieves a remarkable energy density of 235.3 Wh kg<sup>-1</sup>. This study demonstrates the feasibility of rigid-flexible coupling SEI, providing a pathway to boost the sodium storage performance of anode materials with huge volume change.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202515062"},"PeriodicalIF":16.9,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sterically Congested LLX-Type PNSi Tridentate Ligands for Iridium-Catalyzed C(sp3)-H Borylation. 空间拥塞llx型PNSi三齿配体用于铱催化的C(sp3)-H硼化反应。
IF 16.9
Angewandte Chemie (International ed. in English) Pub Date : 2025-09-18 DOI: 10.1002/anie.202515538
Takeru Torigoe, Akika Kon, Kairi Mine, Yoichiro Kuninobu, Toshimichi Ohmura
{"title":"Sterically Congested LLX-Type PNSi Tridentate Ligands for Iridium-Catalyzed C(sp<sup>3</sup>)-H Borylation.","authors":"Takeru Torigoe, Akika Kon, Kairi Mine, Yoichiro Kuninobu, Toshimichi Ohmura","doi":"10.1002/anie.202515538","DOIUrl":"https://doi.org/10.1002/anie.202515538","url":null,"abstract":"<p><p>Iridium catalysts bearing LLX-type PNSi tridentate ligands (Ir/PNSi catalysts) were developed as new effective catalysts for the C(sp<sup>3</sup>)-H borylation of alkanes and alkyl groups that do not have directing groups. The Ir/PNSi catalysts were prepared in situ from [Ir(OMe)(cod)]<sub>2</sub> and 8-diarylphosphino-2-[(di-tert-butylhydrosilyl)methyl]quinolines, which are readily synthesized from commercially available 8-bromo-2-methylquinoline. The Ir/PNSi catalyst exhibited higher chemoselectivity than a standard Ir/Me<sub>4</sub>phen and our previously reported Ir/NNSi catalysts. Thus, the Ir/PNSi catalysts promoted selective borylation of the sterically less crowded C(sp<sup>3</sup>)-H bonds in 2-methylheptane and dibutyldimethylsilane. The C(sp<sup>3</sup>)-H-selective borylation in the presence of C(sp<sup>2</sup>)-H bonds was also achieved with the Ir/PNSi catalysts in the reaction of 4-substituted alkylbenzenes. Such notable chemoselectivity may be due to the congested environment around the iridium center formed by the mer-tridentate coordination of the PNSi ligands.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202515538"},"PeriodicalIF":16.9,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transition-Metal-Free Carbonyl Redox: A Ketene in Three Oxidation States. 过渡-无金属羰基氧化还原:三种氧化态的烯酮。
IF 16.9
Angewandte Chemie (International ed. in English) Pub Date : 2025-09-18 DOI: 10.1002/anie.202515888
Liankun Ai, Xinyue Meng, Songyang Li, Cuijuan Zhang, Dominik Munz, Jiaxiang Chu
{"title":"Transition-Metal-Free Carbonyl Redox: A Ketene in Three Oxidation States.","authors":"Liankun Ai, Xinyue Meng, Songyang Li, Cuijuan Zhang, Dominik Munz, Jiaxiang Chu","doi":"10.1002/anie.202515888","DOIUrl":"https://doi.org/10.1002/anie.202515888","url":null,"abstract":"<p><p>Ketenes are among the most versatile compounds in organic chemistry, participating in a wide range of transformations, including cycloadditions, nucleophilic and electrophilic additions, and polymerizations. However, their redox chemistry, particularly the preparation of stable radical anions and radical cations, remains largely unexplored. Here, we report the isolation and characterization of a cyclic (alkyl)(amino)carbene (CAAC)-derived ketene in three oxidation states, including its radical anion and cation, representing the first example of such species. These ketene radicals exhibit unique electronic properties: the radical anion adopts a bent geometry that places the radical out of conjugation with the CAAC substituent, while the radical cation results from oxidation of an electron-withdrawing carbonyl group. Both radicals were characterized in detail using infrared (IR) and UV-vis electronic absorption spectroscopy, EPR spectroscopy, structural analysis, and computations, revealing parallels with the redox chemistry of transition metal carbonyl complexes. Reactivity studies indicate that the radical anion and radical cation react via nucleophilic and radical pathways, respectively, contrasting with the behavior of neutral ketenes. This work demonstrates a novel redox-based strategy for investigating uncharted transformations of ketenes, expanding their synthetic utility and opening new avenues for redox-organocatalysis of carbenes with small molecules.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202515888"},"PeriodicalIF":16.9,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sodium-Based Dual-Ion Battery: From Materials to Mechanism. 钠基双离子电池:从材料到机理。
IF 16.9
Angewandte Chemie (International ed. in English) Pub Date : 2025-09-18 DOI: 10.1002/anie.202510566
Xikun Zhang, Hongtao Qu, Weibin Yan, Liuxi Yang, Yu Li, Bao-Lian Su
{"title":"Sodium-Based Dual-Ion Battery: From Materials to Mechanism.","authors":"Xikun Zhang, Hongtao Qu, Weibin Yan, Liuxi Yang, Yu Li, Bao-Lian Su","doi":"10.1002/anie.202510566","DOIUrl":"https://doi.org/10.1002/anie.202510566","url":null,"abstract":"<p><p>Sodium-based dual-ion batteries (SDIBs) have garnered increasing attention as a next-generation energy storage technology, owing to their high operating voltage, cost-effective raw materials, and environmentally friendly characteristics. These features position SDIBs as a compelling alternative to conventional lithium-ion batteries, particularly for large-scale applications. Despite significant progress in improving energy density and cycling stability, several critical challenges remain-most notably, the development of durable electrode materials and the formulation of electrolytes that are both efficient and compatible with the dual-ion mechanism. In this review, we provide a comprehensive overview of recent advances in SDIB research, with a particular focus on the design and optimization of electrode materials and electrolyte systems. We delve into the fundamental electrochemical mechanisms that govern the operation of SDIBs. In addition, we explore emerging concepts and innovative strategies aimed at addressing existing limitations, including aqueous SDIBs and quasi-solid-state SDIBs. By synthesizing the current state of knowledge and highlighting key research directions, we hope that the insights presented herein will inspire further innovation and accelerate the development of high-performance, sustainable SDIBs for future energy storage applications.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202510566"},"PeriodicalIF":16.9,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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