Chemistry - A European Journal最新文献_第5页

Application of Screen Printing in Perovskite Solar Devices 丝网印刷在钙钛矿太阳能器件中的应用。

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.71338

Wenchen Pan, Xinsheng Tang, Xiaodong Hu, Pengju Guo, Shangshang Chen

{"title":"Application of Screen Printing in Perovskite Solar Devices","authors":"Wenchen Pan, Xinsheng Tang, Xiaodong Hu, Pengju Guo, Shangshang Chen","doi":"10.1002/chem.71338","DOIUrl":"10.1002/chem.71338","url":null,"abstract":"<div>\u0000 \u0000 Screen printing, a technology that deposits films in a dotted line connection, plays a pivotal role in advancing the transition of perovskite solar cells (PSCs) from laboratory research to large-scale industrial production for its simple operation and great material conservation. However, the manipulation of perovskite inks remains challenging during screen printing, as the underlying dynamic mechanisms are affected by various factors such as viscosity, solid content, thixotropy, drying time, and rheology, which call for in-depth investigation. Previous research also reveals certain limitations in the devices, including incomplete contact between the perovskite precursor solution and the scaffold, as well as the coffee ring effect. This review provides a comprehensive summary of the application of screen printing in the preparation of charge transport layers, perovskite active layers, and electrodes, which present challenges faced in the field of printed mesoporous PSCs, flexible PSCs, perovskite/c-Si tandem cells, and perovskite solar modules. Furthermore, this review summarizes the overarching trends and presents the emerging insights from the latest research. Finally, it is demonstrated that screen printing exhibits substantial potential for the low-cost fabrication of PSCs, especially when integrated with complementary technologies such as roll-to-roll manufacturing, automated robotic mesh deposition technique, and other relevant processes.\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":"148358604","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

Front Cover: Lewis Acidity and Anion-Complexation Ability of Oxo- and Phenylimino-Bridged Planar Triphenylboranes as Lithium-Ion-Conducting Solid-State Electrolytes 封面：氧和苯基桥接平面三苯硼烷作为导电锂离子的固态电解质的Lewis酸度和阴离子络合能力

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 DOI: 10.1002/chem.71762

Yuichi Kitamoto, Daiki Tsuji, Shunsuke Yamamoto, Yohei Kitani, Maiko Akiba, Kyota Sampei, Tetsutaro Hattori

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Inhibition of Aggregation-Caused Quenching in "Half-Sandwich" Red-Phosphorescent Cyclometalated Platinum(II) Complexes. “半夹心”红磷光环金属化铂（II）配合物中聚集猝灭的抑制作用。

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.71354

Son N T Phan, Pooja S Kodithuwakku, Thomas S Teets

{"title":"Inhibition of Aggregation-Caused Quenching in \"Half-Sandwich\" Red-Phosphorescent Cyclometalated Platinum(II) Complexes.","authors":"Son N T Phan, Pooja S Kodithuwakku, Thomas S Teets","doi":"10.1002/chem.71354","DOIUrl":"10.1002/chem.71354","url":null,"abstract":"Aggregation-caused quenching (ACQ) is a significant challenge encountered in luminescent square-planar Pt(II) complexes, especially in condensed phases such as neat or doped films. Herein, five red-emitting heteroleptic bis-bidentate cyclometalated Pt(II) complexes are described, supported by sterically encumbering \"half-sandwich\" β-ketoiminate or 2-picolinamide ancillary ligands. The electron-rich nature of the ancillary ligands promotes fast radiative decay, and the \"half-sandwich\" design places steric bulk directly over the metal center and inhibits ACQ. As a result, the photoluminescence color profiles and quantum yields of the complexes are largely preserved at different concentrations in doped films. All five presented complexes exhibit red phosphorescence with moderate ΦPL up to 0.45, obtained in poly(methyl methacrylate) films at 2 wt%. These values gradually drop by only 0.06-0.12 when increasing the concentration to 5 and 10 wt%, with no significant changes in the photoluminescence emission profile observed. The structures of all five complexes were characterized by multinuclear NMR, with two of them by single-crystal X-ray diffraction (XRD). This work enriches the library of red-phosphorescent cyclometalated Pt(II) complexes, highlighting the effectiveness of \"half-sandwich\" ligand architectures in ACQ inhibition.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71354"},"PeriodicalIF":3.6,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148389612","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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Cover Feature: Regioselective Aldol Reactions Directed by Charge and Orbital Effects in Cyclic Germyl Dienolates: Synthesis of Three Distinct Regio- and Stereoisomers 封面特征：环香叶二烯醇酯中由电荷和轨道效应引导的区域选择性醛醇反应：三种不同区域和立体异构体的合成

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 DOI: 10.1002/chem.71763

Taishi Nojima, Akihito Konishi, Makoto Yasuda

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Peroullazines: Synthesis, Structure, and Optoelectronic Properties. Peroullazines：合成、结构及光电性质。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 DOI: 10.1002/chem.71799

Ricardo Molenda, Ha Minh Tuan, Peter Ehlers, Peter Langer

{"title":"Peroullazines: Synthesis, Structure, and Optoelectronic Properties.","authors":"Ricardo Molenda, Ha Minh Tuan, Peter Ehlers, Peter Langer","doi":"10.1002/chem.71799","DOIUrl":"https://doi.org/10.1002/chem.71799","url":null,"abstract":"Replacement of benzenoid subunits by isoelectronic heteroaromatic motifs, N-doping, and π-extension provide complementary strategies for modulating the electronic structure and physical properties of polycyclic aromatic π-systems. Ullazine (indolizino[6,5,4,3-aij]quinoline) can be regarded as a π-isoelectronic heteroaromatic analogue of pyrene in which one six-membered benzenoid ring is replaced by a five-membered pyrrolic ring. Ullazine derivatives are of considerable interest in materials chemistry because this structural modification substantially alters their electronic properties relative to pyrene. Herein, we report peroullazine (PU), a longitudinally π-extended ullazine analogue of peropyrene, together with the pyridinic azaperoullazines 7-APU and 8-APU. Their synthesis combines Pd-catalyzed cross-coupling with two- and fourfold alkyne benzannulation. Replacing a pyrene substructure with an ullazine unit renders these π-systems markedly more electron-rich than the corresponding peropyrene and azaperopyrene counterparts, as reflected in substantially lower oxidation potentials. Most strikingly, this pyrene-to-ullazine replacement produces strongly red-shifted optical transitions and optical gaps approaching those of considerably more π-extended teropyrenes, despite the peropyrene-sized π-system. Pyridinic nitrogen incorporation further produces pronounced position-dependent effects, with substitution at the 7-position exerting a substantially stronger influence than substitution at the 8-position on the optical, electrochemical, and protonation responses.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71799"},"PeriodicalIF":3.6,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149178148","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

Charge Resonance Interaction in Aromatic Trimer Radical Cations Revealed by IR Spectroscopy: The Case of Pyrrole Homo- and Heterotrimers. 红外光谱揭示芳香三聚体阳离子中的电荷共振相互作用：以吡咯Homo-和异源三聚体为例。

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.71324

Dashjargal Arildii, Otto Dopfer

{"title":"Charge Resonance Interaction in Aromatic Trimer Radical Cations Revealed by IR Spectroscopy: The Case of Pyrrole Homo- and Heterotrimers.","authors":"Dashjargal Arildii, Otto Dopfer","doi":"10.1002/chem.71324","DOIUrl":"10.1002/chem.71324","url":null,"abstract":"Intermolecular interactions of aromatic molecules are crucial for many biological and functional materials. One of the strongest intermolecular forces is the charge resonance in an aromatic dimer radical cation (CR, ∼100 kJ mol-1), in which the positive charge is delocalized over both molecules. It is of interest how a third unit influences the CR and binding motif of a dimer cation, including the degree of charge delocalization. Herein, we investigate the binding motifs, energies, charge distribution, and origin of the intermolecular forces of the pyrrole trimer cation (Py3 +). The NH stretch frequencies (νNH) recorded by infrared spectroscopy provide insight into the preferred binding motifs and interaction strengths by comparison to density functional theory calculations. We extend the study to Py2 +X by substituting one Py in Py3 + with toluene or benzene. In both homo- and heterotrimers, the third unit solvates the CR-stabilized Py2 + by an NH…π ionic hydrogen bond (H-bond) rather than by CR or π-stacking. This NH…π H-bond has only a minor effect on the CR of the Py2 + core, because the positive charge is retained in the dimer core. Minor charge transfer to the third unit causes an uneven charge distribution in the Py2 + core, thereby reducing its symmetry.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71324"},"PeriodicalIF":3.6,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13660490/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148366299","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

An Electrophilic Uridine Building Block for Post-Synthetic RNA Modification as Exemplified for Spin Labeling. 一种用于合成后RNA修饰的亲电性尿苷构建块，用于自旋标记。

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.71319

Lisa Ruetz, Sonja Leiner, Alessandro Marotto, Raphael Plangger, Christoph Kreutz

{"title":"An Electrophilic Uridine Building Block for Post-Synthetic RNA Modification as Exemplified for Spin Labeling.","authors":"Lisa Ruetz, Sonja Leiner, Alessandro Marotto, Raphael Plangger, Christoph Kreutz","doi":"10.1002/chem.71319","DOIUrl":"10.1002/chem.71319","url":null,"abstract":"Inspired by the widely disseminated isothiocyanate (ITC) conjugation chemistry for proteins, we describe the synthesis of a 5-isothiocyanato methyl-modified uridine building block, which allows facile post-synthetic modification of RNA with primary amines. The common concept in ITC labeling is based on an electrophilic labeling reagent, which is used to label reactive amino groups in the biomolecule. Here, we present the upside-down approach-the RNA carries the electrophilic ITC functionality, which can, after solid-phase synthesis, be modified with various labeling reagents equipped with a primary amino group. The 5-pyrimidine labeling positions the unnatural tag in the major groove of the RNA and thus guarantees a minimal perturbation of the fold. The labeling procedure is exemplified for the 36 nucleotide (nt) stem loop C from the Moloney murine leukemia virus (MMLV) 5'-Leader (SLCA RNA) in a paramagnetic relaxation enhancement study using 4-amino-2,2,6,6-tetramethyl-1-piperidine-1-oxyl (TEMPO-NH2) as the labeling reagent.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71319"},"PeriodicalIF":3.6,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13660491/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148381221","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

Photosensitizing Au(I) Catalysis With Coumarins 香豆素催化光敏Au(I)。

IF 3.6 2区化学

Chemistry - A European Journal Pub Date : 2026-10-13 Epub Date: 2026-06-25 DOI: 10.1002/chem.71185

Liliana Capulín Flores, Jacob J. van der Wal, Johannes E. M. N. Klein

{"title":"Photosensitizing Au(I) Catalysis With Coumarins","authors":"Liliana Capulín Flores, Jacob J. van der Wal, Johannes E. M. N. Klein","doi":"10.1002/chem.71185","DOIUrl":"10.1002/chem.71185","url":null,"abstract":"Gold catalysis shows versatility in a wide range of challenging transformations, wherein light-driven reactions open new pathways. Understanding the factors that impact photosensitization is essential for harnessing the reactivity of excited states in gold photoredox and energy transfer catalysis. We use a Au(I) complex attached to a 3-amino coumarin chromophore (1) to investigate the impact of intramolecular photosensitization on its photophysical and photochemical properties. The potential of 1 to mediate light-driven electron- or energy-transfer processes was tested in two representative cross-coupling reactions. 1 performs moderately in these reactions, which we attribute to the emergence of competing pathways, as indicated by photophysical studies. At 298 K 1 emits weakly, which is attributed to the coumarin chromophore based on UV-vis absorption and emission spectroscopy, and supported by DFT calculations. Although advantageous in coupling the coumarin to the gold complex, self-quenching by the amide group results in a reduction of the emission from 1 relative to that of 3-amino coumarin. At 77 K 1 shows phosphorescence, which is absent in the coumarin alone, indicating intramolecular energy transfer is possible. These data indicate that photochemical activation of gold catalysis holds potential, but effective energy transfer between chromophore and catalyst remains a challenge.","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.71185","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148325165","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

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.71292

Yinyan Zhang, Yitao Zhang, Zixun Zhang, Wanjing Yu, Xiaowei Wang, Jiafeng Zhang, Ji Liang

{"title":"Pressure-Related Challenges and Strategic Approaches in Lithium Metal Sulfide all-Solid-State Batteries","authors":"Yinyan Zhang, Yitao Zhang, Zixun Zhang, Wanjing Yu, Xiaowei Wang, Jiafeng Zhang, Ji Liang","doi":"10.1002/chem.71292","DOIUrl":"10.1002/chem.71292","url":null,"abstract":"<div>\u0000 \u0000 Sulfide solid electrolytes, owing to their high ionic conductivity and excellent plasticity, are considered among the most promising candidates for lithium metal all-solid-state batteries. Nevertheless, practical cell assembly and cycling typically rely on externally applied pressure to secure intimate electrode-electrolyte contact and continuous ion-transport pathways. Pressure governs not only densification and interfacial wetting of the sulfide phase but also the distribution of mechanical stress, local current density, and Li-deposition morphology. While high pressure can suppress interfacial resistance and pore formation, it may simultaneously induce electrolyte fracture, particle pulverization, and accelerated dendrite penetration, posing a critical obstacle to practical implementation. This review analyzes the influence of pressure on structural evolution of sulfide electrolytes, interfacial chemistry, ion-transport behavior, and Li-plating kinetics. Recent advances in mitigating pressure dependence-through interface modification, electrode structural engineering, and flexible or quasi-isostatic loading designs-are systematically summarized. Finally, we highlight that constructing interfaces capable of stable operation under low or even zero applied pressure is essential for the technological transition of sulfide-based solid-state batteries.\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":"148373697","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

Visible Light-Induced Alkyne–Carbonyl Metathesis in Multicomponent Reactions 可见光诱导多组分反应中的炔-羰基复分解。

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.71306

Pan Pan, Zhuang-Chao Fang, Fang-Xin Wang, Xiang-Zhi Zhang

{"title":"Visible Light-Induced Alkyne–Carbonyl Metathesis in Multicomponent Reactions","authors":"Pan Pan, Zhuang-Chao Fang, Fang-Xin Wang, Xiang-Zhi Zhang","doi":"10.1002/chem.71306","DOIUrl":"10.1002/chem.71306","url":null,"abstract":"<div>\u0000 \u0000 Visible light-induced alkyne-carbonyl metathesis has emerged as one of the key tools for constructing α, β-unsaturated carbonyl compounds. Meanwhile, visible light-induced multicomponent organic reactions, featuring high atom economy and mild reaction conditions, have become an important strategy for building complex molecular architectures. Integrating these two strategies—specifically, incorporating visible light-induced alkyne–carbonyl metathesis (ACM) into multicomponent reactions—provides a new pathway for the efficient synthesis of functional aldehydes/ketones while balancing reaction efficiency and atom economy. The review focuses on the research progress of visible light-induced multicomponent reactions of nucleophiles with p-quinone methide (p-QM) intermediates in situ generated by ACM. Initially, this review mainly summarizes visible light-induced multicomponent racemic coupling reactions with alkynes, quinones, and various nucleophiles. Thereafter, it further introduces the application of this strategy in the asymmetric synthesis of chiral compounds and discusses its substrate scope and reaction mechanisms in the construction of complex molecules. This review also highlights the current limitations and challenges within this field and provides an outlook on potential future research directions.\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":"148337072","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