Angewandte Chemie最新文献

{"title":"Improving Internal Exciton Confinement for Efficient CdZnSeS-Based Blue Quantum Dot Light-Emitting Diodes","authors":"Xiaoting Yang,&nbsp;Wenjing Zhang,&nbsp;Yicheng Zeng,&nbsp;Yihuang Chong,&nbsp;Fangze Liu,&nbsp;Zhenghui Wu,&nbsp;Huaibin Shen,&nbsp;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}

{"title":"Magnetically Induced Catalysis: Definition, Advances, and Potential","authors":"A. Bordet,&nbsp;W. Leitner,&nbsp;B. Chaudret","doi":"10.1002/ange.202424151","DOIUrl":"https://doi.org/10.1002/ange.202424151","url":null,"abstract":"<p>The rapidly growing importance of electrification in the chemical industry opens room for disruptive innovations regarding energy input into catalytic processes. Energy efficiency and dynamics of renewable energy supplies represent important challenges, but the design of catalytic systems to cope with such new frameworks may also stimulate the discovery of new catalyst materials and reaction pathways. In this context, many opportunities arise when catalysts are activated in a rapid, localized, and energy-efficient manner. Among the various concepts to achieve adaptivity in catalysis, magnetic induction heating applied directly at the catalyst or in vicinity of the active site has gained increasing attention recently. In this Scientific Perspective, we provide a coherent framework to the emerging field of catalysis using magnetic fields—and in particular alternating current magnetic fields—to activate catalytic materials and define it as <b><i>magnetically induced catalysis</i></b>. Promising approaches and selected examples are described to illustrate the scientific concept and to highlight its broad potential for innovation in catalysis from laboratory to industrial scale.</p>","PeriodicalId":7803,"journal":{"name":"Angewandte Chemie","volume":"137 24","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.202424151","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144232330","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":"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,&nbsp;Zi-Jian Zhou,&nbsp;Xiang Zhu,&nbsp;Jiwei Wu,&nbsp;Yifan Zhang,&nbsp;Tao Wang,&nbsp;Xin-Ping Wu,&nbsp;Chengcheng Tian,&nbsp;Xia Jiang,&nbsp;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 CO₂ photoreduction with H₂O, 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}

{"title":"Outside Front Cover: High-Throughput Computational Screening of Small Molecular Crystals for Sustainable Piezoelectric Materials (Angew. Chem. 18/2025)","authors":"Shubham Vishnoi,&nbsp;Geetu Kumari,&nbsp;Robert Guest,&nbsp;Pierre-André Cazade,&nbsp;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}

{"title":"Frontispiz: The Interplay Between Component Denticity and Flexibility Promotes the Formation of [AgI⋅⋅⋅AgI]-stabilised Links and Knots","authors":"Aleksandra Sarwa,&nbsp;Andrei Khmara,&nbsp;Dr. Krzysztof A. Konieczny,&nbsp;Dr. Dagmara Kulesza,&nbsp;Prof. Eugeniusz Zych,&nbsp;Prof. Bartosz Trzaskowski,&nbsp;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⁺⋅⋅⋅Ag⁺]-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}

{"title":"Bioinspirierte Kationische Antimikrobielle Polymere","authors":"Heliya Javadi,&nbsp;Anne-Catherine Lehnen,&nbsp;Dr. Matthias Hartlieb","doi":"10.1002/ange.202503738","DOIUrl":"https://doi.org/10.1002/ange.202503738","url":null,"abstract":"&lt;p&gt;Die Entdeckung von Antibiotika hat die Medizin nachhaltig verändert. Ohne Medikamente wie Penizillin wäre eine Vielzahl medizinischer Prozeduren heutzutage nicht möglich. Ein Pionier der medikamentösen Behandlung von bakteriellen Infektionen war Paul Ehrlich, der 1910 mit Salvarsan die erste wirksame Behandlung gegen Syphilis entwickelte.&lt;sup&gt;[&lt;/sup&gt;&lt;span&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt;&lt;sup&gt;]&lt;/sup&gt; Doch selbst nach der Entdeckung von Penizillin durch Sir Alexander Fleming in den 1920ern,&lt;sup&gt;[&lt;/sup&gt;&lt;span&gt;&lt;sup&gt;2&lt;/sup&gt;&lt;/span&gt;&lt;sup&gt;]&lt;/sup&gt; dauerte es bis in die 1940er Jahre, ehe antibiotische Behandlungen für die breite Gesellschaft verfügbar wurden. Schon damals war die große Gefahr antimikrobieller Resistenz für manche offensichtlich. So sagte Fleming in einem Interview nach dem Erhalt des Nobelpreises für seine Forschung: “The thoughtless person playing with penicillin treatment is morally responsible for the death of the man who succumbs to infection with the penicillin-resistant organism”.&lt;/p&gt;&lt;p&gt;Und tatsächlich ist AMR eine der großen Krisen, die unser globales Gesundheitssystem gefährdet. Ein kürzlich erschienener Artikel beziffert die Zahl der Toten im Zusammenhang mit AMR auf 4,71 Millionen in 2021, wobei 1,14 Millionen Tote direkt von resistenten Bakterien verursacht wurden.&lt;sup&gt;[&lt;/sup&gt;&lt;span&gt;&lt;sup&gt;3&lt;/sup&gt;&lt;/span&gt;&lt;sup&gt;]&lt;/sup&gt; Der Bericht ist mit einer düsteren Prognose verknüpft, nach der im Jahre 2050 jährlich rund 10 Millionen Menschen AMR zum Opfer fallen werden. Besonders die sogenannten ESKAPE Pathogene (&lt;i&gt;Enterococcus faecium&lt;/i&gt;, &lt;i&gt;Staphylococcus aureus&lt;/i&gt; (&lt;i&gt;S. aureus&lt;/i&gt;), &lt;i&gt;Klebsiella pneumoniae (K. pneumoniae&lt;/i&gt;), &lt;i&gt;Acinetobacter baumannii&lt;/i&gt;, &lt;i&gt;Pseudomonas aeruginosa (P. aeruginosa)&lt;/i&gt; und andere &lt;i&gt;Enterobacterales&lt;/i&gt;) stellen ein großes Problem dar, da sie gut an Krankenhausumgebungen angepasst sind.&lt;sup&gt;[&lt;/sup&gt;&lt;span&gt;&lt;sup&gt;4&lt;/sup&gt;&lt;/span&gt;&lt;sup&gt;]&lt;/sup&gt;&lt;/p&gt;&lt;p&gt;Missbrauch von Antibiotika führt zu substanziellem Druck auf Pathogene, sich anzupassen und führt zur rasanten Verbreitung von AMR.&lt;sup&gt;[&lt;/sup&gt;&lt;span&gt;&lt;sup&gt;5&lt;/sup&gt;&lt;/span&gt;&lt;sup&gt;]&lt;/sup&gt; Das Problem wird durch mangelnde Investitionen von Pharmaunternehmen in die Entwicklung neuer Medikamente verschärft. Da neu entwickelte Antibiotika sofort zu „last-resort Treatments“ erklärt werden, ist der teure Entwicklungsprozess nicht durch den zu erwartenden finanziellen Erfolg gedeckt.&lt;sup&gt;[&lt;/sup&gt;&lt;span&gt;&lt;sup&gt;6&lt;/sup&gt;&lt;/span&gt;&lt;sup&gt;]&lt;/sup&gt;&lt;/p&gt;&lt;p&gt;Somit sind alle Maßnahmen zur Entwicklung von Medikamenten, die sich jenseits des Konzeptes von traditionellen Antibiotika bewegen und somit nicht von AMR betroffen wären, höchst lohnenswert. Inspiration kann in Host-Defense-Peptiden (HDPs) gefunden werden, die einen wichtigen Teil des angeborenen Immunsystems vieler Organismen darstellen und zur Abwehr von Mikroorganismen eingesetzt werden.&lt;sup&gt;[&lt;/sup&gt;&lt;span&gt;&lt;sup&gt;7&lt;/sup&gt;&lt;/span&gt;&lt;sup&gt;]&lt;/sup&gt; Jedoch ist deren direkter Einsatz als Medikament mit verschiedenen Nachteilen, wie z. B. hohen Kosten, Abbau durch Protea","PeriodicalId":7803,"journal":{"name":"Angewandte Chemie","volume":"137 24","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.202503738","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144232463","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":"Breaking Anionic Solvation Barrier for Safe and Durable Potassium-ion Batteries Under Ultrahigh-Voltage Operation","authors":"Yong-Li Heng,&nbsp;Dr. Zhen-Yi Gu,&nbsp;Han-Hao Liu,&nbsp;Dr. Hao-Jie Liang,&nbsp;Yating Deng,&nbsp;Prof. Jian Zhao,&nbsp;Xiao-Tong Wang,&nbsp;Zi-Hang Xue,&nbsp;Dr. Hong-Yan Lü,&nbsp;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 KVPO₄F 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}

{"title":"Marvin Parasram","authors":"Marvin Parasram","doi":"10.1002/ange.202507491","DOIUrl":"https://doi.org/10.1002/ange.202507491","url":null,"abstract":"<p>“<i>The best advice I have ever been given is to never talk yourself out of doing an experiment… My favorite aspect of attending conferences is meeting, seeing, and socializing with your scientific idols…</i>”</p><p>Find out more about Marvin Parasram 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.202507491","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144179042","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}