Chemistry - A European Journal最新文献_第9页

Synthesis and Reactivity of 3-Aminosydnones in Cycloaddition Reactions With Alkynes 3-氨基酮与炔环加成反应的合成及反应活性。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-08-25 Epub Date: 2026-05-08 DOI: 10.1002/chem.71110

Apolline Dominic, Timothée D'anfray, Guillaume Force, David-Alexandre Buisson, Maxime Tricoire, Alexis Leblais, Davide Audisio, Frédéric Taran

引用次数: 0

Boron–Nitrogen Covalent Bond-Embedded Multiple Resonance Emitters: Synthesis Strategy, Molecular Design, and Optoelectronic Properties 硼氮共价键嵌入多重共振发射器：合成策略、分子设计和光电特性。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-08-25 Epub Date: 2026-05-11 DOI: 10.1002/chem.71105

Ningzhi Mou, Meng Li, Zheng-Guang Wu

{"title":"Boron–Nitrogen Covalent Bond-Embedded Multiple Resonance Emitters: Synthesis Strategy, Molecular Design, and Optoelectronic Properties","authors":"Ningzhi Mou, Meng Li, Zheng-Guang Wu","doi":"10.1002/chem.71105","DOIUrl":"10.1002/chem.71105","url":null,"abstract":"<div>\u0000 \u0000 Organic light-emitting diodes (OLEDs) are the core of next-generation display and lighting technologies, and their performance is highly dependent on luminescent materials. Multiple resonance thermally activated delayed fluorescence (MR-TADF) materials have emerged as ideal candidates for high-color-purity and high-efficiency OLEDs due to their narrowband emission and sufficient exciton utilization efficiency. Recently, incorporating isoelectronic B─N covalent bonds into conventional B/N-doped MR-TADF skeletons has generated a new class of B─N bond-embedded MR-TADF materials. These materials not only simplify the complex synthesis process of traditional MR-TADF molecules and avoid the use of hazardous lithium reagents, but also provide a new dimension for the diversification of molecular structures and the precise regulation of optoelectronic properties. This review systematically summarizes the research progress of B─N bond-embedded MR-TADF materials and their OLEDs. First, from the synthesis strategy, the advantages and mechanism of amine-directed lithium-free borylation reaction are elaborated. Subsequently, focusing on molecular design, the effects of molecular structures on photophysical properties and device performances are discussed in detail from the aspects of π-conjugation extension, peripheral substituent engineering, heteroatom doping, and chirality engineering. Finally, it discusses challenges and future directions, aiming to provide valuable references for developing next-generation high-performance, high-color-purity OLED materials.\u0000 </div>","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":"32 32","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147872516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering Supramolecular {HAT(CN)₆;Oligoresorcinol;Anion} Synthons and Knots via Cooperating Multimodal Noncovalent Interactions. 工程超分子{HAT(CN)6；通过合作多模态非共价相互作用的阴离子合成子和结。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-08-25 DOI: 10.1002/chem.71501

Dorota Glosz, Joachim Grzybowski, Aleksandra Żabińska, Martyna Dyczkowska, Tadeusz M Muzioł, Monika Srebro-Hooper, Robert Podgajny

{"title":"Engineering Supramolecular {HAT(CN)6;Oligoresorcinol;Anion} Synthons and Knots via Cooperating Multimodal Noncovalent Interactions.","authors":"Dorota Glosz, Joachim Grzybowski, Aleksandra Żabińska, Martyna Dyczkowska, Tadeusz M Muzioł, Monika Srebro-Hooper, Robert Podgajny","doi":"10.1002/chem.71501","DOIUrl":"https://doi.org/10.1002/chem.71501","url":null,"abstract":"The interplay of multiple noncovalent interactions offers a powerful strategy for the design of functional supramolecular architectures. Here, we developed a unique series of ternary cocrystal salt-like {coformer1;coformer2;salt} systems in the solid state and in solution to approach the problem of collective binding of halide (Cl-, Br-) or pseudohalide (SCN-) anion pairs. Exploiting HAT(CN)6 π-acid (coformer1) and oligoresorcinol hydrogen-bond donors (coformer2), we identify five new ternary {coformer1;coformer2;[anion]n} (n = 1-2) supramolecular synthons that integrate anion-π interactions, π-π stacking, and hydrogen bonding, reflecting the intrinsic preferences of components. SC XRD and solution 1H/13C NMR studies demonstrate transferability of the synthons among the relevant binary and ternary crystal phases, as well as between the solid state and solution. DFT+D computational analysis confirms the contribution of all three types of supramolecular interactions to the formation and stability of observed motifs, showing a variable hierarchy of these forces modulated by the structural and electronic features of building blocks. Our results demonstrate that while crystal packing influences solid-state arrangements, system's integrity arises from a balance of cooperation and competition among noncovalent interactions. This establishes a new library of complex supramolecular synthons for further consideration in overall supramolecular design.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71501"},"PeriodicalIF":3.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Oxygen-Vacancy-Driven Electron Transfer Enables Synergistic Peroxymonosulfate Activation on Co₃O₄ Hollow Nanocubes. 氧空位驱动的电子转移使Co3O4空心纳米立方上的过氧单硫酸盐协同活化。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-08-25 DOI: 10.1002/chem.71618

Liying Wang, Nanyue Xu, Rui Lv, Guoliang Li

{"title":"Oxygen-Vacancy-Driven Electron Transfer Enables Synergistic Peroxymonosulfate Activation on Co3O4 Hollow Nanocubes.","authors":"Liying Wang, Nanyue Xu, Rui Lv, Guoliang Li","doi":"10.1002/chem.71618","DOIUrl":"https://doi.org/10.1002/chem.71618","url":null,"abstract":"Conventional Co3O4 catalysts are limited by sluggish electron transfer, dominant radical pathways that suffer from interference in complex water matrices; shifting toward non-radical pathways via oxygen-vacancy engineering and hollow nanocube (HNC) architecture offers a promising strategy that enhances selectivity, stability, and anti-interference capability. Therefore, oxygen-vacancy-engineered Co3O4 HNCs (Vo-Co3O4 HNCs) were designed via a ZIF-67-templated etching-oxidation-reduction route that couples structural precision with defect control. The optimized 38 %-Vo sample exhibits a rare balance between activity and stability, achieving 98.7 % tetracycline removal within 5 min and maintaining over 96 % efficiency from pH 3-11 and real-water matrices. Spectroscopic and electrochemical analyses reveal that moderate Vo enrichment tunes the Co2+/Co3+ valence equilibrium and accelerates charge transport, thereby promoting a synergistic radical (SO4 •-, •OH, O2 •-) and non-radical (1O2, electron-transfer) oxidation network. Predominant 1O2 and high-valent Co (IV) = O species endow the system with exceptional anti-interference capability, low charge-transfer resistance (3.26 Ω), and long-term stability with negligible Co leaching. This work reveals a clear defect-structure-activity correlation for PMS activation and demonstrates that coupling rational morphology with precise oxygen-vacancy modulation enables fast, selective, and recyclable degradation of emerging organic pollutants, providing a general blueprint for defect-orchestrated transition-metal-oxide catalysts in sustainable environmental remediation.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71618"},"PeriodicalIF":3.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rh-Catalyzed C─H Activation for the Modular Synthesis of Dual-Functional Heterocyclic-Bridged Dithienylethenes Based on Tailorable Aryl Alkynes. 铑催化C─H活化合成双官能团杂环桥接二乙烯基可调芳基炔。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-08-25 DOI: 10.1002/chem.71599

XueWen Wang, Wen Wu, PengKe Wang, KaiYi Yang, QianFu Luo

引用次数: 0

Photoinduced Alkynylation of Alkylboronic Acids and Alkyl-Boronates via Aminyl Radical Transfer (ART) Strategy 氨基自由基转移（ART）策略光诱导烷基硼酸和烷基硼酸盐的烷基化反应。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-08-25 Epub Date: 2026-05-13 DOI: 10.1002/chem.71121

Akash Bisoyi, Ruveen Murgeshan, Gayathri K. G., Alisha Rani Tripathy, Amit Behera, Bangaru Bhaskararao, Veera Reddy Yatham

{"title":"Photoinduced Alkynylation of Alkylboronic Acids and Alkyl-Boronates via Aminyl Radical Transfer (ART) Strategy","authors":"Akash Bisoyi, Ruveen Murgeshan, Gayathri K. G., Alisha Rani Tripathy, Amit Behera, Bangaru Bhaskararao, Veera Reddy Yatham","doi":"10.1002/chem.71121","DOIUrl":"10.1002/chem.71121","url":null,"abstract":"<div>\u0000 \u0000 We have developed a practical and innovative method for the photoinduced alkynylation of alkylboronic acids/alkyl-boronates, using (hetero)aryl acetylenic bromides as alkynylating reagents and morpholine as an activator. This catalyst-free reaction features a broad substrate scope, efficiently accommodating various alkylboronic acids/boronates including primary, secondary, and tertiary as well as (hetero)aryl acetylenic bromides with diverse functional groups and affording the desired internal alkynes (57 examples) in good to excellent yields. The synthetic utility of this approach is further demonstrated through the late-stage functionalization of several medicinally relevant compounds. Additionally, the method's practicality was confirmed by successfully scaling up the reaction to gram-scale quantities. Preliminary mechanistic investigations suggest that photoirradiation of acetylenic bromides generates bromine radicals in situ, which play a key role in producing aminyl radicals that activate alkylboronic acids or boronates through a radical transfer process.\u0000 </div>","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":"32 32","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147925040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In situ Generation of Fluoride Catalysts for CO2-to-Formic Acid Conversion With Silicon Reducing Agent 用硅还原剂原位制备co2制甲酸氟催化剂。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-08-25 Epub Date: 2026-05-12 DOI: 10.1002/chem.71108

S. M. A. Hakim Siddiki, Yusuke Tanimura, Mariko Honda, Shingo Hasegawa, Kazuo Namba, Yuichi Manaka, Ken Motokura

{"title":"In situ Generation of Fluoride Catalysts for CO2-to-Formic Acid Conversion With Silicon Reducing Agent","authors":"S. M. A. Hakim Siddiki, Yusuke Tanimura, Mariko Honda, Shingo Hasegawa, Kazuo Namba, Yuichi Manaka, Ken Motokura","doi":"10.1002/chem.71108","DOIUrl":"10.1002/chem.71108","url":null,"abstract":"The activation and catalytic reduction of carbon dioxide (CO2) using silicon-based reducing agents is an important strategy for sustainable C1 chemistry and silicon waste upcycling. Tetraalkylammonium fluoride salts are highly effective promoters of silicon hydride formation; however, their direct use introduces challenges in terms of expense and handling. Here, we report the first example of in situ generation of fluoride catalysts for the reduction of CO2 to formic acid from a simple inorganic fluoride salt, such as NaF. A neutral precursor releases fluoride under mild conditions, enabling selective CO2 reduction using powdered silicon. Mechanistic studies reveal that the catalytically active fluoride species are generated in situ from three components: inorganic fluoride, amine, and acid. The method eliminates the need for expensive and unstable organic fluoride. This work establishes a new fluoride-mediated catalytic platform for coupling CO2 valorization with silicon waste utilization.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":"32 32","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/chem.71108","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147925029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and Synthesis of Thieno[3,2-b]thiophene Derivatives Toward High-Birefringence Materials for Microwave Application. 微波高双折射材料中噻吩[3,2-b]衍生物的设计与合成

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-08-25 DOI: 10.1002/chem.71551

Małgorzata Bakiera, Jakub Herman, Monika Zając, Paweł Perkowski, Piotr Harmata

{"title":"Design and Synthesis of Thieno[3,2-b]thiophene Derivatives Toward High-Birefringence Materials for Microwave Application.","authors":"Małgorzata Bakiera, Jakub Herman, Monika Zając, Paweł Perkowski, Piotr Harmata","doi":"10.1002/chem.71551","DOIUrl":"https://doi.org/10.1002/chem.71551","url":null,"abstract":"A set of new liquid-crystalline compounds featuring a thieno[3,2-b]thiophene core was prepared to study how molecular structure influences both optical and dielectric characteristics. Determination of the mesomorphic properties of the synthesized compounds, along with the investigation of their optical and dielectric characteristics, allows for their characterization and classification as components of mixtures intended for microwave applications. The design of the structures was based on the functionalization of the heterocyclic thieno[3,2-b]thiophene core, which serves as the central core unit. They constitute a complement and a point of comparison with the previously presented structures exhibiting high birefringence and containing the thienothiophene ring. Optimization of the reaction conditions along the synthetic pathway to the final compounds allowed for diversification of the structures in terms of the type of terminal substituent, degree of fluorination, nature of the linking groups, and the length of the mesogenic core. The characterization of the obtained mesogens, explicitly designed for microwave applications, limited by the temperature range over which liquid crystalline properties are exhibited, indicates that the chosen research area represents a promising direction for the use of these materials as electrically controllable dielectric media for microwave applications.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71551"},"PeriodicalIF":3.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reversible Assembly and Disassembly of σ-Aromatic B₃ Rings. σ-芳烃B3环的可逆装配与拆卸。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-08-25 DOI: 10.1002/chem.71615

Julian Krauß, Frederick Koch, Niels Karsten Paul Hecht, Elisabeth Kaifer, Hans-Jörg Himmel

引用次数: 0

Vertically Aligned MoS₂/MXene Heterojunction as a Bifunctional Separator Coating for Suppressing Shuttle Effect and Enhancing Li⁺ Transport in Li-S Batteries. 垂直排列MoS2/MXene异质结作为抑制Li- s电池中穿梭效应和增强Li+输运的双功能隔膜涂层

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-08-25 DOI: 10.1002/chem.71592

Tao Wu, Yunxia Liu, Jie Chang, Ronghua Wang, Chaohe Xu

{"title":"Vertically Aligned MoS2/MXene Heterojunction as a Bifunctional Separator Coating for Suppressing Shuttle Effect and Enhancing Li+ Transport in Li-S Batteries.","authors":"Tao Wu, Yunxia Liu, Jie Chang, Ronghua Wang, Chaohe Xu","doi":"10.1002/chem.71592","DOIUrl":"https://doi.org/10.1002/chem.71592","url":null,"abstract":"Lithium-sulfur batteries are considered one of the most promising next-generation energy storage systems owing to their high theoretical energy density and natural abundance of sulfur. However, their practical application is severely hampered by the polysulfide shuttle effect and sluggish conversion kinetics. Herein, a two-dimensional MoS2/MXene heterojunction composite (MMS) is rationally designed via one-step hydrothermal growth of vertically aligned MoS2 nanoflowers on conductive Ti3C2Tx MXene substrates. This unique architecture integrates the high conductivity of MXene with abundant catalytic edge sites of MoS2, forming a tightly coupled heterointerface with 1T/2H mixed-phase MoS2 that synergistically enables physical confinement, chemical adsorption, and electrocatalytic conversion of polysulfides. When employed as a functional coating on polypropylene separators, MMS@PP exhibits enhanced electrolyte wettability, high ionic conductivity (1.476 mS cm-1), and a lithium-ion transference number of 0.49. Consequently, Li-S batteries incorporating MMS@PP deliver a high specific capacity of 1294.1 mAh g-1 at 0.1 C with low polarization (161 mV), excellent rate capability (5 C), and outstanding cycling stability with 89.1% capacity retention after 100 cycles at 0.2 C. This work provides a rational heterojunction design strategy for developing multifunctional separators toward high-performance Li-S batteries.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71592"},"PeriodicalIF":3.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148816859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0