Chemistry - A European Journal最新文献_第3页

Synthesis, Characterization, and Redox Reactions at the Solid–Liquid Interface of Submicron-Size Ru(edta) Complex 亚微米尺寸Ru（edta）配合物的合成、表征及固液界面氧化还原反应。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 Epub Date: 2026-07-01 DOI: 10.1002/chem.71307

Marta Chrzanowska, Yogeswara Rao Pateda, Barbara Kubiak, Weronika Walędziak, Olga Impert, Erik Rakovský, Viliam Vretenár, Anna Katafias, Debabrata Chatterjee, Rudi van Eldik

{"title":"Synthesis, Characterization, and Redox Reactions at the Solid–Liquid Interface of Submicron-Size Ru(edta) Complex","authors":"Marta Chrzanowska, Yogeswara Rao Pateda, Barbara Kubiak, Weronika Walędziak, Olga Impert, Erik Rakovský, Viliam Vretenár, Anna Katafias, Debabrata Chatterjee, Rudi van Eldik","doi":"10.1002/chem.71307","DOIUrl":"10.1002/chem.71307","url":null,"abstract":"<div>\u0000 \u0000 A submicron-sized colloidal ruthenium coordination compound was synthesized from a supersaturated solution of K[RuIII(Hedta)Cl] complex (edta4− = ethylenediaminetetraacetate) using the antisolvent method. Electron microscopy (SEM/STEM) and spectroscopic (UV–vis and IR) studies revealed that the resulting submicron particles of K[RuIII(edta)(H2O)], denoted as K[RuIII(edta)(H2O)]SP, undergo ligand substitution with thiourea (TU) to form K[RuIII(edta)(TU)]SP, as well as redox reaction with hydrogen peroxide (H2O2) yielding K[RuV(edta)(O)]SP at the solid–liquid interface of a multiphase system. Furthermore, K[RuIII(edta)(H2O)]SP exhibited catalytic activity toward oxidative degradation of methylene blue (MB) in the presence of H2O2. The present study demonstrates that the characteristic coordination and redox reactivity of the Ru(edta) system are retained upon conversion to submicron particles, providing a model platform for investigating transition metal complex chemistry at solid-liquid interfaces.\u0000 </div>","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":"32 38","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148366297","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}

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Ultramicroporous Metal-Organic Frameworks Functionalized With Acyclic Ether Oxygen Bonds for Efficient C₂H₂/CO₂ and C₂H₂/C₂H₄ Separation. 以无环醚氧键功能化的超微孔金属-有机骨架高效分离C2H2/CO2和C2H2/C2H4。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 Epub Date: 2026-06-27 DOI: 10.1002/chem.71336

Xinhui Chen, Zerui Wang, Jie Song, Hongke Dong, Chunyu Lu, Mingzhen Shao, Shubin Wang, Xiaoqing Lu, Ben Xu, Fangna Dai

{"title":"Ultramicroporous Metal-Organic Frameworks Functionalized With Acyclic Ether Oxygen Bonds for Efficient C2H2/CO2 and C2H2/C2H4 Separation.","authors":"Xinhui Chen, Zerui Wang, Jie Song, Hongke Dong, Chunyu Lu, Mingzhen Shao, Shubin Wang, Xiaoqing Lu, Ben Xu, Fangna Dai","doi":"10.1002/chem.71336","DOIUrl":"10.1002/chem.71336","url":null,"abstract":"Designing and tailoring porous materials to realize the precise separation of C2H2, C2H4 and CO2 with nearly identical kinetic diameters is an extremely challenging research task. In this study, a novel microporous metal-organic framework (MOF) designated UPC-523 (Zn3(H4edda)2·DMF) has been synthesized by employing 5,5'-(ethane-1,2-diylbis(oxy))diisophthalic acid (H4edda), which is constructed with ethylene ether linkages (-O-CH2-CH2-O-). This rational design strategy employs ethylene ether moieties to construct a highly electronegative pore microenvironment within the framework. UPC-523 is endowed with abundant electronegative sites, the uncoordinated oxygen atoms in the confined pores selectively capture C2H2 from CO2 and C2H4 through hydrogen-bonding interactions, enabling it to achieve selective adsorption of C2H2. At 298 K and 100 kPa, this MOF exhibits a C2H2 adsorption capacity of 44.9 cm3/g, coupled with a moderate isosteric heat of C2H2 adsorption (Qst) of 33.7 kJ/mol, a property conducive to the direct desorption and regeneration of UPC-523. The IAST selectivities of C2H2/C2H4 (v/v = 50/50) and C2H2/CO2 (v/v = 50/50) are 2.1 and 3.4, respectively, comparable to the majority of reported MOFs under identical conditions. Dynamic breakthrough experiments reveal that UPC-523 can efficiently separate C2H2 from C2H2/CO2 or C2H2/C2H4 mixtures.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71336"},"PeriodicalIF":3.6,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148337047","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}

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Cross-Dehydrogenative Coupling Reactions With Redox-Active Guanidine Reagents. 与氧化还原活性胍试剂的交叉脱氢偶联反应。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 Epub Date: 2026-07-03 DOI: 10.1002/chem.71329

Petra Walter, Olaf Hübner, Hans-Jörg Himmel

引用次数: 0

Light Driven Pd-catalyzed Regioselective C─H Halogenation of Benzo[b][1,4]oxazin-2-ones Using DXDMH. DXDMH光驱动pd催化苯并[b][1,4]恶嗪-2-酮的C─H选择性卤化

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 Epub Date: 2026-07-03 DOI: 10.1002/chem.71349

Monika, Prashant Kumar, Brajendra K Singh

{"title":"Light Driven Pd-catalyzed Regioselective C─H Halogenation of Benzo[b][1,4]oxazin-2-ones Using DXDMH.","authors":"Monika, Prashant Kumar, Brajendra K Singh","doi":"10.1002/chem.71349","DOIUrl":"10.1002/chem.71349","url":null,"abstract":"A mild, visible-light-driven protocol has been developed for the regioselective ortho-C(sp2)-H mono-halogenation (Cl, Br, and I) of 3-aryl-2H-benzo[b][1,4]oxazin-2-ones via a synergistic metallaphotoredox strategy. The transformation employs Pd(OAc)2 (20 mol %) in combination with the organic photocatalyst eosin Y (WS, 10 mol %) under irradiation with a 24 W blue LED, using bench-stable N-halo-5,5-dimethylhydantoins (DCDMH, DBDMH, and DIDMH) as sustainable halogen sources. Conducted in 1,2-dichloroethane (DCE) with p-toluenesulfonic acid (1.0 equiv.) as an essential additive, the reaction proceeds under oxidant-free and thermally mild conditions to afford ortho-halogenated products in high isolated yields (75%-97%) with excellent regioselectivity. A broad range of substituents on the 3-aryl ring, including electron-donating, electron-withdrawing, and extended aromatic groups, are well tolerated. Mechanistic investigations-including radical trapping experiments (TEMPO, BHT), light on/off studies, and control reactions-support a cooperative pathway involving Pd(II)-directed C─H activation and photoredox-mediated generation of halogen radicals, followed by radical capture and reductive elimination from high-valent palladium intermediates. This operationally simple dual catalytic approach provides an efficient platform for late-stage diversification of pharmaceutically relevant 2H-benzo[b][1,4]oxazin-2-one scaffolds and advances sustainable strategies in photocatalytic C─H halogenation.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71349"},"PeriodicalIF":3.6,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148381373","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}

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Fluorosilane Molecular Layer Modification for Remarkably Enhancing Cycling Stability of Zinc Metal Anodes in Aqueous Supercapacitors. 氟硅烷分子层改性显著提高水性超级电容器锌金属阳极循环稳定性。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 DOI: 10.1002/chem.71798

Huixin Qu, Cunqi Wu, Zhenming Xu, Laifa Shen, Xiaogang Zhang, Hao Tong

引用次数: 0

Controlled Formation and Unusual Reactivity of Cyanohexatriyne (HC₇N), a Synthetically Challenging Interstellar Cyanopolyyne. 一种具有合成挑战性的星际氰聚炔（HC7N）的可控形成和异常反应性。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 Epub Date: 2026-06-27 DOI: 10.1002/chem.71321

Léa Lefrançois, Mano Cremer, Thierry Roisnel, Jean-Claude Guillemin, Yann Trolez

引用次数: 0

Harnessing Naphthalimide Scaffolds for Sustainable CO₂ Utilization: A Metal-, Halide-, and Solvent-Free Photocatalytic CO₂ Cycloaddition via Sequential Two-Photon Activation. 利用萘酰亚胺支架可持续利用CO2：通过顺序双光子激活的金属，卤化物和无溶剂光催化CO2环加成。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 Epub Date: 2026-07-03 DOI: 10.1002/chem.71355

Biplop Jyoti Hazarika, Jasmine Bezboruah, Avishek Roy, Palak T Bhattad, Deepanjan Patra, Sanjio S Zade, Venkataramanan Mahalingam

{"title":"Harnessing Naphthalimide Scaffolds for Sustainable CO2 Utilization: A Metal-, Halide-, and Solvent-Free Photocatalytic CO2 Cycloaddition via Sequential Two-Photon Activation.","authors":"Biplop Jyoti Hazarika, Jasmine Bezboruah, Avishek Roy, Palak T Bhattad, Deepanjan Patra, Sanjio S Zade, Venkataramanan Mahalingam","doi":"10.1002/chem.71355","DOIUrl":"10.1002/chem.71355","url":null,"abstract":"Consecutive photoinduced electron transfer (ConPET) has attracted great interest due to its ability to activate inert substrates under mild reaction conditions. The imide-functionalized rylene derivatives are well-documented in the literature as competent chromophores capable of operating via ConPET. Herein, we report the synthesis and characterization of naphthalimide-based organophotocatalyst, JS-2, for CO2 cycloaddition with epoxides to synthesize cyclic carbonates. JS-2 demonstrated remarkable efficiency with just 0.1 mol% catalyst loading at room temperature, atmospheric CO2 pressure, and under visible light irradiation, giving excellent yield and selectivity for a wide range of substrates. Detailed mechanistic investigations and density functional theory calculations confirmed that the reaction proceeds via a sequential two-photon excitation, forming the CO2 radical anion (CO2 •-) as a nucleophile. The heterogeneity and excellent recyclability across five consecutive cycles highlight the robustness and feasibility of the catalyst for practical use. To the best of our knowledge, this is the first report of a completely metal-, halide-, and solvent-free approach, employing a ConPET process and leveraging the nucleophilic reactivity of CO2 •- in epoxide ring opening for a photocatalytic CO2 cycloaddition reaction.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71355"},"PeriodicalIF":3.6,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148381353","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

Control of Gemcitabine Activity With Blue and Red Light. 蓝光和红光对吉西他滨活性的控制。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 Epub Date: 2026-07-06 DOI: 10.1002/chem.71363

Nils F Kersten, Konstantin L Stock, Marius Hyprath, Hannah Weisser, Timo Weinrich, Dieter Steinhilber, Alexander Heckel

{"title":"Control of Gemcitabine Activity With Blue and Red Light.","authors":"Nils F Kersten, Konstantin L Stock, Marius Hyprath, Hannah Weisser, Timo Weinrich, Dieter Steinhilber, Alexander Heckel","doi":"10.1002/chem.71363","DOIUrl":"10.1002/chem.71363","url":null,"abstract":"Treating cancer with chemotherapy is generally associated with many side effects. This problem can be addressed by selectively releasing the desired drugs with light. In a screening approach, we modified known antimetabolite cytostatics with photoremovable protecting groups (PPGs). Sixteen new light-activatable cytostatics with a blue light-activatable diethylaminocoumarin group (DEACM) were synthesized, and their (photo-)chemical properties were tested. The most promising compounds were subjected to cytotoxicity studies with HT-29 colon cancer cells. In our experiments, the DEACM-gemcitabine derivative showed the best properties with full recovery of gemcitabine activity after irradiation. In the absence of blue light, this compound was 29 times less toxic. In the next step, based on these results, we designed a red-light activatable derivative of gemcitabine, featuring a heptamethine (Cy7) PPG. We were able to confirm the photorelease of gemcitabine with tissue-penetrating red light in HT-29 cells. Our \"gem-Cy-tabine\" was almost inactive in the absence of light, but its activity increased >33 fold after irradiation with red light. It is, therefore, an interesting candidate for more specific cancer therapy by photopharmacology.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71363"},"PeriodicalIF":3.6,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13660501/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148389574","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

Correction to “Mechanically Adaptive Materials Based on Dynamic Chemical Bonds” 修正“基于动态化学键的机械自适应材料”

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 Epub Date: 2026-07-06 DOI: 10.1002/chem.71353

{"title":"Correction to “Mechanically Adaptive Materials Based on Dynamic Chemical Bonds”","authors":"","doi":"10.1002/chem.71353","DOIUrl":"https://doi.org/10.1002/chem.71353","url":null,"abstract":"J. Dong, Z.-H. Zhao, and C.-H. Li, “Mechanically Adaptive Materials Based on Dynamic Chemical Bonds,” Chemistry A European Journal 31 (2025): e202404397, https://doi.org/10.1002/chem.202404397.1. The sentence—“Polysiloxane (PBS), which is a typical MAP, has been widely reported to possess intriguing viscoelastic behaviors owing to the existence of dynamic boron-oxygen bonds.”—on page 10 should be corrected as, “Polyborosiloxane (PBS), a representative borosiloxane-based mechanically adaptive material, has been widely reported to exhibit intriguing rate-dependent viscoelastic behavior owing to reversible boron─oxygen linkages, including Si─O─B/B─O dynamic bonds.”2. The sentence—“As elucidated by Gong and co-workers,”—on page 10 should be corrected as, “As elucidated by Gong, Tok and coworkers [40b, 42c].” Accordingly, reference 40 should be replaced by “[40] a) C. Wang, G. Lei, R. Zhang, X. Zhou, J. Cui, Q. Shen, G. Luo, L. Zhang, ACS Appl. Mater. Interfaces 2023, 15, 2267–2276; b) C. Zhao, X. Gong, S. Wang, W. Jiang, S. Xuan, Cell Rep. Phys. Sci. 2020, 1, 100266; c) A. Kurkin, Y. Lekina, D. G. Bradley, G. L. Seah, K. W. Tan, V. Lipik, J. V. Hanna, X. Zhang, A. I. Y. Tok, Mater. Today Chem. 2023, 33, 101677.”We thank a rigorous reader for bringing these mistakes to our attention.We apologize for these errors.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":"32 38","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/chem.71353","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177413","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}

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Synthesis and Photophysical Properties of Thiazole/Benzothiazole-Fused Nonastarazines: Extending the Core and Tuning Emission via Positional Substitution. 噻唑/苯并噻唑融合非星间嗪类化合物的合成及其光物理性质：通过位置取代扩展核和调谐发射。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 DOI: 10.1002/chem.71790

Yuhong Xie, Yi Feng, Honglin Qiu, Hang Xu, Wentao Yang, Linlin Liu, Zengqi Xie

引用次数: 0