Clark Vu, Narjess Abu Amara, Mohammed Alaboalirat, Einat Nativ-Roth, Ran Zalk, Wellington Leite, Jan-Michael Carrillo, Ronit Bitton, John B. Matson
{"title":"Aqueous Self-Assembly of Cylindrical and Tapered Bottlebrush Block Copolymers","authors":"Clark Vu, Narjess Abu Amara, Mohammed Alaboalirat, Einat Nativ-Roth, Ran Zalk, Wellington Leite, Jan-Michael Carrillo, Ronit Bitton, John B. Matson","doi":"10.1002/ange.202500771","DOIUrl":"https://doi.org/10.1002/ange.202500771","url":null,"abstract":"<p>The self-assembly of amphiphilic bottlebrush block copolymers (BCPs), featuring backbones densely grafted with two types of side chains, is less well understood compared to linear BCPs. In particular, the solution self-assembly of tapered bottlebrush BCPs—cone-shaped BCPs with hydrophilic or hydrophobic tips—remains unexplored. This study investigates eight tapered and four cylindrical bottlebrush BCPs with varied ratios of hydrophobic polystyrene (PS) and hydrophilic poly(acrylic acid) (PAA) side chains, synthesized via sequential addition of macromonomers using ring-opening metathesis polymerization (SAM-ROMP). Self-assembled nanostructures formed in water were analyzed using cryogenic transmission electron microscopy, small-angle neutron scattering, and dynamic light scattering. Most BCPs generated multiple nanostructures with surface protrusions, including spherical micelles, cylindrical micelles, and vesicles, alongside transitional forms like ellipsoids and semi-vesicles. Coarse-grained molecular dynamics simulations supported the experimental findings, which revealed two distinct self-assembly pathways. The first involved micelle fusion, producing elliptical and cylindrical aggregates, sometimes forming Y-junctions. The second pathway featured micelle maturation into semivesicles, which developed into vesicles or large compound vesicles. This work provides the first experimental evidence of vesicle formation via semivesicles in bottlebrush BCPs and demonstrates the significant influence of cone directionality on self-assembly behavior in these cone-shaped polymeric amphiphiles.</p>","PeriodicalId":7803,"journal":{"name":"Angewandte Chemie","volume":"137 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ange.202500771","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dr. Yi Fan, Dr. Yigang Shen, Wenli Zhang, Guochao Zeng, Tete Liu, Yilan Wang, Dr. Shuli Wang, Prof. Jing Zheng, Prof. Xu Hou
{"title":"Frontispiz: Electrochemical Redox Synergism-Enhanced Liquid Metal Locomotion for Unrestricted Circuit Substrate Patterning","authors":"Dr. Yi Fan, Dr. Yigang Shen, Wenli Zhang, Guochao Zeng, Tete Liu, Yilan Wang, Dr. Shuli Wang, Prof. Jing Zheng, Prof. Xu Hou","doi":"10.1002/ange.202581761","DOIUrl":"https://doi.org/10.1002/ange.202581761","url":null,"abstract":"<p>An electrochemical redox synergistic liquid metal, capable of generating intermetallic bond transition layers between liquid metal and unrestricted substrates in pH-universal electrolytes, is reported by Jing Zheng, Xu Hou et al. in their Research Article (e202424637). It involves enhanced locomotion behaviour, driven by electrochemical energy from cyclic gallium redox states, exhibiting self-propelled bouncing with high spreading speed and elongation rate.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":7803,"journal":{"name":"Angewandte Chemie","volume":"137 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ange.202581761","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mingyi Jiang, Zengcheng Yu, Linhan Yang, Prof. Fei Wang, Prof. Weidi Cao, Prof. Xiaohua Liu, Prof. Xiaoming Feng
{"title":"Frontispiz: Reductant-Free Enantioselective Aza-Reformatsky Reaction Enabled by Synergistic Visible Light Photocatalysis and Lewis Acid Catalysis","authors":"Mingyi Jiang, Zengcheng Yu, Linhan Yang, Prof. Fei Wang, Prof. Weidi Cao, Prof. Xiaohua Liu, Prof. Xiaoming Feng","doi":"10.1002/ange.202581762","DOIUrl":"https://doi.org/10.1002/ange.202581762","url":null,"abstract":"<p>The visible-light and chiral-Lewis-acid synergistically catalyzed reductant-free asymmetric aza-Reformatsky reaction is described by Xiaoming Feng and co-workers in their Communication (e202500756). Control experiments revealed a direct SET process between excited state imine and α-iodo difluoromethyl carbonyl compound which prevents the use of reductant.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":7803,"journal":{"name":"Angewandte Chemie","volume":"137 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ange.202581762","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Improving Internal Exciton Confinement for Efficient CdZnSeS-Based Blue Quantum Dot Light-Emitting Diodes","authors":"Xiaoting Yang, Wenjing Zhang, Yicheng Zeng, Yihuang Chong, Fangze Liu, Zhenghui Wu, Huaibin Shen, Hongbo Li","doi":"10.1002/ange.202420421","DOIUrl":"https://doi.org/10.1002/ange.202420421","url":null,"abstract":"<p>Quantum-dot light-emitting diodes (QLEDs) are thought to be the base for next-generation display technology. However, the performance of blue-emitting QLEDs still falls behind those of green and red ones, which can be attributed to the energy loss from Auger recombination and the strong coupling of excitons with surface states. Blue quantum dots (QDs) with giant CdZnSeS alloy cores are expected to improve the internal confinement of excitons due to the nonmonotonical energy landscape of their conduction band, while they haven't shown high performance in QLEDs due to insufficient optimization of their shell structures. In this work, giant CdZnSeS alloy cores were synthesized by diffusing Zn atoms into CdSeS cores, so that the core/shell lattice stress was released due to the optimized gradient compositions. As a result, exciton transfer and Auger recombination are both suppressed, leading to a breakthrough external quantum efficiency (EQE) of 24% in blue QLEDs with giant CdZnSeS alloy cores. Compared to the more extensively studied blue quantum dots with CdSeZn alloy cores, blue QLEDs with giant CdZnSeS alloy cores also benefit from the suppressed Fermi level and nonmonotonical energy landscape of the conduction band minimum (CBM), which are crucial for confining the wavefunctions of the excitons. The improved exciton confinement explained the superior performances of giant CdZnSeS alloy cores over CdSeZn cores in blue QLEDs.</p>","PeriodicalId":7803,"journal":{"name":"Angewandte Chemie","volume":"137 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140671","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}
Na Yang, Zi-Jian Zhou, Xiang Zhu, Jiwei Wu, Yifan Zhang, Tao Wang, Xin-Ping Wu, Chengcheng Tian, Xia Jiang, Sheng Dai
{"title":"Outside Back Cover: Sulfur Conversion to Donor-Acceptor Ladder Polymer Networks Through Mechanochemical Nucleophilic Aromatic Substitution for Efficient CO2 Photoreduction (Angew. Chem. 20/2025)","authors":"Na Yang, Zi-Jian Zhou, Xiang Zhu, Jiwei Wu, Yifan Zhang, Tao Wang, Xin-Ping Wu, Chengcheng Tian, Xia Jiang, Sheng Dai","doi":"10.1002/ange.202507727","DOIUrl":"https://doi.org/10.1002/ange.202507727","url":null,"abstract":"<p>A novel mechanochemical-assisted approach converts elemental sulfur into thianthrene-bridged porous ladder polymers with dense donor-acceptor (D-A) junctions, mimicking natural leaves for efficient CO<sub>2</sub> photoreduction with H<sub>2</sub>O, without additional photosensitizers, sacrificial agents, or cocatalysts. The key innovation is a mechanochemical nucleophilic aromatic substitution (SNAr) reaction, enabling sustainable solid-state condensation of sulfur with 1,2-dihaloarenes to form bent thianthrene units. For details read the Research Article by Xiang Zhu, Xin-Ping Wu, Chengcheng Tian, Sheng Dai et al. (e202419108).\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":7803,"journal":{"name":"Angewandte Chemie","volume":"137 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ange.202507727","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shubham Vishnoi, Geetu Kumari, Robert Guest, Pierre-André Cazade, Sarah Guerin
{"title":"Outside Front Cover: High-Throughput Computational Screening of Small Molecular Crystals for Sustainable Piezoelectric Materials (Angew. Chem. 18/2025)","authors":"Shubham Vishnoi, Geetu Kumari, Robert Guest, Pierre-André Cazade, Sarah Guerin","doi":"10.1002/ange.202507410","DOIUrl":"https://doi.org/10.1002/ange.202507410","url":null,"abstract":"<p>Molecular crystals that belong to non-centrosymmetric space groups demonstrate piezoelectricity by interconverting electrical and mechanical energy. The cover image shows molecular crystal unit cells interlocking into a crystalline electrified assembly. As Pierre-André Cazade, Sarah Guerin et al. demonstrate in their Research Article (e202501232), the unit cell can be studied using computational chemistry to predict the piezoelectric response of a crystal and screen for sustainable materials in sensing, actuation, and energy harvesting. Image: Ella Maru Studio.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":7803,"journal":{"name":"Angewandte Chemie","volume":"137 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ange.202507410","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Frontispiz: Multicomponent Reaction Integrating Selenium(II)–Nitrogen Exchange (SeNEx) Chemistry and Copper-Catalyzed Azide–Alkyne Cycloaddition (CuAAC)","authors":"","doi":"10.1002/ange.202581662","DOIUrl":"https://doi.org/10.1002/ange.202581662","url":null,"abstract":"<p>Selenium-nitrogen exchange (SeNEx) chemistry has been seamlessly integrated with CuAAC. In their Research Article (e202500942), Wei Hou, Wei Zhou, Hongtao Xu et al. report a novel three-component reaction involving benzoselenazolones, alkynes, and azides. This reaction proceeds via a unique SeNEx–CuAAC tandem pathway, providing direct access to diverse 1,4,5-trisubstituted 5-seleno-1,2,3-triazoles regioselectively with high atom economy. It was applied to successfully identify a potent Escherichia coli β-glucuronidase inhibitor through target-based screening.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":7803,"journal":{"name":"Angewandte Chemie","volume":"137 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ange.202581662","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aleksandra Sarwa, Andrei Khmara, Dr. Krzysztof A. Konieczny, Dr. Dagmara Kulesza, Prof. Eugeniusz Zych, Prof. Bartosz Trzaskowski, Dr. Bartosz Szyszko
{"title":"Frontispiz: The Interplay Between Component Denticity and Flexibility Promotes the Formation of [AgI⋅⋅⋅AgI]-stabilised Links and Knots","authors":"Aleksandra Sarwa, Andrei Khmara, Dr. Krzysztof A. Konieczny, Dr. Dagmara Kulesza, Prof. Eugeniusz Zych, Prof. Bartosz Trzaskowski, Dr. Bartosz Szyszko","doi":"10.1002/ange.202581661","DOIUrl":"https://doi.org/10.1002/ange.202581661","url":null,"abstract":"<p>The balance between the flexibility of the bipyridine-based diamine and the coordination domain's denticity drives the self-assembly of four distinct [Ag<sup>+</sup>⋅⋅⋅Ag<sup>+</sup>]-stabilized architectures, as reported by Bartosz Szyszko et al. in their Communication (e202423962). Using 2,6-diformylpyridine leads to the formation of molecular tweezer, trefoil knot, and Solomon links, while a 1,8-naphthyridine-based dialdehyde favors [2]catenanes and trefoil knot. The Frontispiece art accentuates the unique Solomon link architecture by depicting two interlocked, snake-like motifs that guard their cherished silver eggs.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":7803,"journal":{"name":"Angewandte Chemie","volume":"137 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ange.202581661","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yong-Li Heng, Dr. Zhen-Yi Gu, Han-Hao Liu, Dr. Hao-Jie Liang, Yating Deng, Prof. Jian Zhao, Xiao-Tong Wang, Zi-Hang Xue, Dr. Hong-Yan Lü, Prof. Xing-Long Wu
{"title":"Breaking Anionic Solvation Barrier for Safe and Durable Potassium-ion Batteries Under Ultrahigh-Voltage Operation","authors":"Yong-Li Heng, Dr. Zhen-Yi Gu, Han-Hao Liu, Dr. Hao-Jie Liang, Yating Deng, Prof. Jian Zhao, Xiao-Tong Wang, Zi-Hang Xue, Dr. Hong-Yan Lü, Prof. Xing-Long Wu","doi":"10.1002/ange.202423043","DOIUrl":"https://doi.org/10.1002/ange.202423043","url":null,"abstract":"<p>Ultrahigh-voltage potassium-ion batteries (PIBs) with cost competitiveness represent a viable route towards high energy battery systems. Nevertheless, rapid capacity decay with poor Coulombic efficiencies remains intractable, mainly attributed to interfacial instability from aggressive potassium metal anodes and cathodes. Additionally, high reactivity of K metal and flammable electrolytes pose severe safety hazards. Herein, a weakly solvating fluorinated electrolyte with intrinsically nonflammable feature is successfully developed to enable an ultrahigh-voltage (up to 5.5 V) operation. Through breaking the anionic solvation barrier, synergistic interfacial modulation can be achieved by the formation of robust anion-derived inorganic-rich electrode-electrolyte interfaces on both the cathode and anode. As proof of concept, a representative KVPO<sub>4</sub>F cathode can sustain 1600 cycles with 84.4 % of capacity retention at a high cutoff voltage of 4.95 V. Meanwhile, K plating/stripping process in our designed electrolyte also demonstrates optimized electrochemical reversibility and stability with effectively inhibited potassium dendrites. These findings underscore the critical impact of anion-dominated solvation configuration on synergistic interfacial modulation and electrochemical properties. This work provides new insights into rational design of ultrahigh-voltage and safe electrolyte for advanced PIBs.</p>","PeriodicalId":7803,"journal":{"name":"Angewandte Chemie","volume":"137 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830978","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}
{"title":"Robert Luxenhofer","authors":"Robert Luxenhofer","doi":"10.1002/ange.202507493","DOIUrl":"https://doi.org/10.1002/ange.202507493","url":null,"abstract":"<p>“<i>An essential quality of a good research atmosphere is to be able to question any result or hypothesis… The best advice I have ever been given is to not take grant rejections personal…</i>”</p><p>Find out more about Robert Luxenhofer in his Introducing… Profile.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":7803,"journal":{"name":"Angewandte Chemie","volume":"137 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ange.202507493","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144179043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}