Chemistry - A European Journal最新文献_第2页

Green Electrochromic Film Formation via Phenylcarbazole Polymerization in Ionic Liquids. 离子液体中苯咔唑聚合形成绿色电致变色膜。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-05-06 DOI: 10.1002/chem.71059

Carolina Gascó, Sara Santiago, Rosa Maria Sebastián, Gonzalo Guirado

{"title":"Green Electrochromic Film Formation via Phenylcarbazole Polymerization in Ionic Liquids.","authors":"Carolina Gascó, Sara Santiago, Rosa Maria Sebastián, Gonzalo Guirado","doi":"10.1002/chem.71059","DOIUrl":"https://doi.org/10.1002/chem.71059","url":null,"abstract":"The scale-up of electrochromic devices (ECD) from laboratory research to mass production is still challenging due to the use of toxic organic solvents and electrolytes, as well as performance losses when transferred to solid substrates specially flexible ones. Here, we present a green approach for the electropolymerization of polycarbazoles on flexible substrates, using two distinct monomers: 4-(9H-carbazol-9-yl)phenol and 4-(3-methoxy-9H-carbazol-9-yl)phenol. 1-Butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (BMIM-TFSI) ionic liquid (IL) is used as a reusable electrolyte medium, which not only minimizes environmental impact but also enables efficient modulation of the electrochromic performance. The resulting electroactive films showed promising coverage (2.24·10- 9 and 2.5·10- 8 mol cm- 2, respectively), and efficient electrochromic features (31 and 17 cm2 C-1, respectively), demonstrating their potential for improving sustainable fabrication protocols and paving the way toward practical, environmentally friendly ECD applications.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71059"},"PeriodicalIF":3.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147831313","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

The Stabilization of High-Nitrogen Systems: 10 Catenated Nitrogen Chain. 高氮体系的稳定性：10链氮。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-05-06 DOI: 10.1002/chem.202503256

Nicholas F Scherschel, Thomas R Talbot, Matthias Zeller, Davin G Piercey

{"title":"The Stabilization of High-Nitrogen Systems: 10 Catenated Nitrogen Chain.","authors":"Nicholas F Scherschel, Thomas R Talbot, Matthias Zeller, Davin G Piercey","doi":"10.1002/chem.202503256","DOIUrl":"https://doi.org/10.1002/chem.202503256","url":null,"abstract":"High-nitrogen materials have attracted intense interest in recent decades due to their unique chemical, physical, and biological properties. Stabilizing high-nitrogen materials is often challenging as they become more unstable with increasing nitrogen catenation and nitrogen mass percentage increase. Although approaches such as introducing alternating positive/negative charges and restricting electrocyclic N2 loss have been reported for stabilizing high-nitrogen systems, these structural motifs have not previously been applied to highly catenated nitrogen chains. Accordingly, we sought to design a new highly catenated nitrogen chain with the aforementioned considerations, which began with the synthesis of 1,5-diamino-3-methyl-tetrazolium chloride. When 1,5-diamino-3-methyl-tetrazolium chloride is reacted with white fuming nitric acid, a novel 10-catenated nitrogen chain in 1,1'-azobis-3,3'-dimethyl-5,5'-diamino-tetrazol-3,3'-ium dinitrate is afforded. Physical and chemical properties of this exotic material are described herein, and implications for high-nitrogen material design are discussed.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e03256"},"PeriodicalIF":3.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147831424","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

Strain Release of 1-Azabicyclo[1.1.0]butanes as a Gateway to Highly Functionalized Azetidines: New Strategies and Structural Motifs. 1-Azabicyclo[1.1.0]丁烷作为高功能化Azetidines的门户：新策略和结构基序。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-05-06 DOI: 10.1002/chem.71087

Yuri Gelato, Philipp Natho, Marco Colella, Renzo Luisi

引用次数: 0

Substituent-Controlled Design of Naphthalene Diimide-Based Materials Exhibiting Semiconducting Behavior. 具有半导体性能的萘二亚胺基材料的取代基控制设计。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-05-06 DOI: 10.1002/chem.71104

Sk S Ahamed, Nargis Khatun, Suman K Ghosh, Debashree Manna, A K M Maidul Islam, Muklesur Rahman, Tapas Ghosh

{"title":"Substituent-Controlled Design of Naphthalene Diimide-Based Materials Exhibiting Semiconducting Behavior.","authors":"Sk S Ahamed, Nargis Khatun, Suman K Ghosh, Debashree Manna, A K M Maidul Islam, Muklesur Rahman, Tapas Ghosh","doi":"10.1002/chem.71104","DOIUrl":"https://doi.org/10.1002/chem.71104","url":null,"abstract":"This work introduces five core 2,6-diaryl-substituted naphthalene diimide (NDI) derivatives accessed through Suzuki-Miyaura cross-coupling, employing imide-functionalized NDIs bearing 2-ethylhexyl side chains. The strategic incorporation of electron-donating and electron-withdrawing aryl groups at the 2,6-positions of the electron-deficient NDI core enabled systematic tuning of the electronic and optical properties of NDI derivatives. UV-Vis absorption studies showed the development of Q-bands and bathochromic shifts, depending on the electronic properties of the substituents, which are essential for optimizing optoelectronic functionality. The experimental observations were further supported by density functional theory calculations, offering deeper insight into the extent of electronic delocalization and the spatial distribution of the frontier molecular orbitals. The semiconducting behavior of all five compounds has been evaluated by fabricating them into Schottky diode devices. With different charge transport properties connected to the electronic characteristics of the core substituents, the resultant devices showed distinct structure-property correlations. Core-engineered NDIs are proven to be adaptable soft materials for tunable organic electronic applications in this study.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71104"},"PeriodicalIF":3.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147831427","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

Dual Acid Responses of Stable Luminescent Diphenylpyridylmethyl Radicals With Additional Pyridyl Groups. 含附加吡啶基的稳定发光二苯基吡啶甲基自由基的双酸反应。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-05-06 DOI: 10.1002/chem.71095

Yohei Hattori, Kojiro Nakagawa, Kingo Uchida, Gwénaël Rapenne

{"title":"Dual Acid Responses of Stable Luminescent Diphenylpyridylmethyl Radicals With Additional Pyridyl Groups.","authors":"Yohei Hattori, Kojiro Nakagawa, Kingo Uchida, Gwénaël Rapenne","doi":"10.1002/chem.71095","DOIUrl":"https://doi.org/10.1002/chem.71095","url":null,"abstract":"Polychlorinated diphenylpyridylmethyl radicals, exemplified by (3,5-dichloro-4-pyridyl)bis(2,4,6-trichlorophenyl)methyl radical (PyBTM), have garnered significant attention as stable radical emitters. Due to their halogenated pyridyl groups, these radicals also exhibit weak basicity and acid-responsive properties. To further explore and expand the acid-responsive behavior of PyBTM, we substituted additional pyridyl groups (3-pyridyl, 4-pyridyl, and 2-methoxy-3-pyridyl) for chlorine atoms at the para-positions relative to the methyl radical center. This modification yielded six novel, stable luminescent radicals. Spectroscopic analysis revealed distinct changes in absorption and emission profiles upon titration with a Brønsted acid (p-toluenesulfonic acid), a Lewis acid (tris(pentafluorophenyl)borane), and metal cations (Ag+, Zn2+, Cu2+). Complementary 1H NMR and DFT studies suggested that the 3-pyridyl and 4-pyridyl substituents act as stronger bases compared to PyBTM, whereas the basicity of the 2-methoxy-3-pyridyl is attenuated. The observed optical changes, including the emergence of new absorption bands and emission quenching, were rationalized using TD-DFT calculations.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71095"},"PeriodicalIF":3.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147831205","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

Lewis-Acidic Properties and Catalytic Behavior of Hydroboration- and Diolysis-Derived NHC-Stabilized Borenium Cations. 氢硼化和水解衍生nhc稳定硼离子的路易斯酸性质和催化行为。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-05-06 DOI: 10.1002/chem.71035

Michał Jakubczyk, Michaela Buziková, Matouš Kloda, Miroslava Litecká, Karel Škoch

{"title":"Lewis-Acidic Properties and Catalytic Behavior of Hydroboration- and Diolysis-Derived NHC-Stabilized Borenium Cations.","authors":"Michał Jakubczyk, Michaela Buziková, Matouš Kloda, Miroslava Litecká, Karel Škoch","doi":"10.1002/chem.71035","DOIUrl":"https://doi.org/10.1002/chem.71035","url":null,"abstract":"In this work, we report the synthesis and characterization of a series of thirteen N-heterocyclic carbene-stabilized borenium cations featuring varied steric and electronic properties of the supporting NHC ligands (IMe2, IMes, SIMes). The series comprises borenium species bearing distinct substituents, including hydrides, carbon-based groups (sp3- and sp2-hybridized), and diol-derived moieties forming five- to seven-membered rings. The Lewis acidity was quantified in terms of Gutmann's Acceptor Number (AN), revealing that most of the prepared boreniums exhibit higher acidity than the benchmark Lewis acid B(C6F5)3. These borenium species were subsequently evaluated as catalysts in two model transformations-homocoupling of diazo derivatives and hydrosilylation of acetophenones. The markedly different catalytic behavior observed across the series highlights the decisive influence of the structural and electronic factors on the global Lewis acidity of the boron center and, consequently, on its catalytic performance.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71035"},"PeriodicalIF":3.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147831301","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

Thianthrenium Salts as Aryl Radical Precursors for Direct Arylation of β-Dicarbonyl Compounds via Electrochemical S_RN1 Reaction. 硫鎓盐作为芳基前体通过电化学SRN1反应直接芳基化β-二羰基化合物。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-05-06 DOI: 10.1002/chem.71088

Cécile Boudet, Thibaud Brégent, Jean-François Brière, Philippe Jubault, Thomas Poisson

引用次数: 0

Stereoisomerism and Conformations of Pillar[n]arenes and Related [1_n]Paracyclophanes. 柱[n]芳烃和相关的[1n]副环番的立体异构和构象。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-05-05 Epub Date: 2026-02-15 DOI: 10.1002/chem.70740

Kenichi Kato, Shunsuke Ohtani, Tomoki Ogoshi

引用次数: 0

Can DNA-Protein Crosslinking Be Induced by One-Electron Oxidation of 8-Oxoguanosine? A Model Study of 9-Methyl-8-Oxoguanine Radical Cation With Methylamine. 8-氧鸟苷单电子氧化能诱导dna -蛋白交联吗？甲胺与9-甲基-8-氧鸟嘌呤自由基阳离子的模型研究。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-05-05 Epub Date: 2026-02-18 DOI: 10.1002/chem.202503540

Wenjing Zhou, Liang Feng, May Myat Moe, Johnny Ceballos, Midas Tsai, Jianbo Liu

{"title":"Can DNA-Protein Crosslinking Be Induced by One-Electron Oxidation of 8-Oxoguanosine? A Model Study of 9-Methyl-8-Oxoguanine Radical Cation With Methylamine.","authors":"Wenjing Zhou, Liang Feng, May Myat Moe, Johnny Ceballos, Midas Tsai, Jianbo Liu","doi":"10.1002/chem.202503540","DOIUrl":"10.1002/chem.202503540","url":null,"abstract":"8-oxoguanosine (OG) is a common form of DNA damage and is itself more susceptible to further oxidative transformations. The oxidized OG derivatives can covalently bond with nucleophilic amino acid residues, contributing to DNA-protein crosslinks (DPCs). Previous research in this context focused on the reactivity of the two-electron oxidized OG intermediate, 2-amino-7,9-dihydro-purine-6,8-dione (OGOX), toward nucleophilic addition. In contrast, the role of one-electron oxidized OG radical cations (OG•+) remains unexplored. Herein, we investigate a model system using 9-methyl-8-oxoguanine radical cation (9MOG•+) as an analogue of OG nucleoside and CH3NH2 as a mimic for the lysine ε-amine. The reaction of 9MOG•+ with methylamine was measured across a range of kinetic energy in the gas phase by guided-ion-beam mass spectrometry. Density functional theory (DFT) and DLPNO-CCSD(T) quantum chemistry computations were performed to elucidate reaction pathways and structures. Our results reveal that at low reaction energies, DPCs occur through direct nucleophilic addition, yielding C2-+NH2CH3[9MOG]• and C4-+NH2CH3[9MOG]•. At high energies, DPCs become possible between protonated [9MOG+H]+ and •CH2NH2/•NHCH3 generated from hydrogen abstraction. This work provides insights into the distinct roles of one- versus two-electron oxidized OG species in DPC formation, expanding knowledge of OG lesions and their biological consequences.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e03540"},"PeriodicalIF":3.7,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146218063","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

Polar Phosphorus Sites in CNTs Suppress Polysulfide Shuttle and Accelerate Conversion in Li-S Cathodes. 碳纳米管中的极性磷位点抑制多硫化物穿梭并加速Li-S阴极的转化。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-05-05 Epub Date: 2026-02-18 DOI: 10.1002/chem.202503372

Xitong Sheng, Bo Zhang, Tianshuai Wang, Kai Cui, Han Wang, Hepeng Zhang

{"title":"Polar Phosphorus Sites in CNTs Suppress Polysulfide Shuttle and Accelerate Conversion in Li-S Cathodes.","authors":"Xitong Sheng, Bo Zhang, Tianshuai Wang, Kai Cui, Han Wang, Hepeng Zhang","doi":"10.1002/chem.202503372","DOIUrl":"10.1002/chem.202503372","url":null,"abstract":"Lithium-sulfur batteries offer high energy density but suffer capacity fade from lithium polysulfide dissolution and sluggish redox kinetics. We fabricate phosphorus-doped carbon nanotubes (P-CNTs) by a simple, low-cost vapor-diffusion route and use them as sulfur-host cathodes. Phosphorus incorporation and increased defect density create abundant sites for chemisorption and catalytic conversion of polysulfides, suppressing the shuttle and accelerating kinetics. The conductive, tubular architecture also preserves electron pathways and buffers volume changes, enabling fast charge transfer and structural integrity during cycling. The P-CNTs cathodes deliver an initial specific capacity of 1153.8 mAh g-1 at 0.2 C and sustain 500 cycles at 1.0 C with an average per-cycle decay of only 0.095%. Under a high sulfur loading of 6.55 mg cm-2, an areal capacity of 7.73 mAh cm-2 at 0.2 C is achieved with 66.1% retention after 100 cycles. Spectroscopic and electrochemical analyses indicate strong adsorption of sulfur species on P-CNTs, effectively anchoring LiPSs intermediates and improving coulombic efficiency. These results establish P-CNTs as effective, scalable cathode hosts for long-life, high-loading Li-S batteries and highlight a practical strategy coupling physical confinement with catalytic regulation of polysulfides.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e03372"},"PeriodicalIF":3.7,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146218020","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