Chemistry - A European Journal最新文献_第10页

Palladium Supported on Polystyrene (Pd@PS) for the Catalytic Synthesis of 2,5-Dimethylfuran (2,5-DMF) From Biomass-Derived 5-Chloromethylfurfural (CMF) at Ambient Temperature. 聚苯乙烯（Pd@PS）负载钯在室温下催化5-氯甲基糠醛（CMF）合成2,5-二甲基呋喃（2,5- dmf）

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-04-24 DOI: 10.1002/chem.202503404

Mahender Kumar, Arvind Singh Chauhan, Rohit Bains, Pralay Das

{"title":"Palladium Supported on Polystyrene (Pd@PS) for the Catalytic Synthesis of 2,5-Dimethylfuran (2,5-DMF) From Biomass-Derived 5-Chloromethylfurfural (CMF) at Ambient Temperature.","authors":"Mahender Kumar, Arvind Singh Chauhan, Rohit Bains, Pralay Das","doi":"10.1002/chem.202503404","DOIUrl":"https://doi.org/10.1002/chem.202503404","url":null,"abstract":"2,5-Dimethylfuran (2,5-DMF), a renewable biofuel with promising properties, highlights the importance of biomass conversion as a key strategy for sustainable energy production. In this study, we report a facile synthesis of 2,5-DMF from 5-chloromethylfurfural (CMF) using polymer-supported nano-composite material (Pd@PS) as a catalyst at 35°C in 3 h under a H2 atmosphere. The developed methodology provides an excellent tentative carbon conversion efficiency percentage (90%), high atom economy (64%), and low environmental factor (E-factor) (1.15, normalized value 50%), indicating sustainability and a green chemistry matrix. These studies also aligned with the UN Sustainable Development Goals 7 and 12, contributing to the global transition toward cleaner and more sustainable chemical manufacturing by valorizing biomass-based feedstocks. Additionally, the CMF has been synthesized from raw biomass sources, like banana peel waste, sugarcane bagasse, rice straw, and corn cobs, with yields ranging from 8 to 15 wt% and carbon conversion efficiency (tentative) between 25% and 54%. Furthermore, the developed protocol offered an efficient and scalable process (up to 5.0 g) for the production of biofuel, with superior catalytic activity and high recyclability up to six cycles. Moreover, total turnover and turnover frequency numbers were found to be 59.89 and 59.89 h-1, respectively.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e03404"},"PeriodicalIF":3.7,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147757971","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

Diffusion of Carbamazepine in Hydrophobic Zeolites: A Comparative Study Using Classical and Machine-Learned Potentials. 卡马西平在疏水性沸石中的扩散：经典电位和机器学习电位的比较研究。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-04-24 DOI: 10.1002/chem.71048

Jakob Brauer, Richard Kendra, Carlos Bornes, Lukáš Grajciar, Michael Fischer

{"title":"Diffusion of Carbamazepine in Hydrophobic Zeolites: A Comparative Study Using Classical and Machine-Learned Potentials.","authors":"Jakob Brauer, Richard Kendra, Carlos Bornes, Lukáš Grajciar, Michael Fischer","doi":"10.1002/chem.71048","DOIUrl":"https://doi.org/10.1002/chem.71048","url":null,"abstract":"Hydrophobic zeolites are promising adsorbents for the persistent pollutant carbamazepine (CBZ), yet diffusion within their confining pores remains poorly understood. Computational studies often rely on static interaction energies, conveying only a static picture. We employ umbrella sampling simulations to obtain free energy surfaces (FES) of CBZ diffusion in a range of all-silica zeolites. Results from a classical force field description are compared with a fine-tuned neural network potential (MACE). While both methods show qualitative agreement, the MACE potential mostly predicts higher activation barriers, which we attribute to the more accurate representation of the energy penalty of close atomic contacts at the transition states. MACE simulations show that CBZ can become kinetically trapped in higher-energy, metastable orientations after a transition state. We propose that exergonic adsorption from an aqueous phase would populate an ensemble of lowest-energy and metastable states, providing a plausible kinetic pathway for diffusion, with a lowering of the effective activation barrier with respect to higher-energy states. The diffusion of CBZ is governed by a complex landscape of translational and rotational barriers, a picture only accessible by going beyond an interaction energy-based description. This work supports the rational choice of shape-selective zeolites as effective adsorbents for environmental remediation.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71048"},"PeriodicalIF":3.7,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147757679","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

Light-Induced Anion Translocation to Control Helical Folding in an Artificial Communication System. 光诱导阴离子移位控制人工通信系统中的螺旋折叠。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-04-24 DOI: 10.1002/chem.71031

Indigo M Bekaert, Suchismita Saha, Julia Villalva, David Villarón, Maxime A Siegler, Sander J Wezenberg

引用次数: 0

AuPdPt Ternary Alloy Nanoparticles for Highly Active Hydrogen Evolution Reaction. 用于高活性析氢反应的三元合金纳米粒子。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-04-24 DOI: 10.1002/chem.202503458

Yuto Maruta, Takaaki Toriyama, Tomokazu Yamamoto, Yasukazu Murakami, Shogo Kawaguchi, Yoshiki Kubota, Hiroshi Kitagawa, Kohei Kusada

{"title":"AuPdPt Ternary Alloy Nanoparticles for Highly Active Hydrogen Evolution Reaction.","authors":"Yuto Maruta, Takaaki Toriyama, Tomokazu Yamamoto, Yasukazu Murakami, Shogo Kawaguchi, Yoshiki Kubota, Hiroshi Kitagawa, Kohei Kusada","doi":"10.1002/chem.202503458","DOIUrl":"https://doi.org/10.1002/chem.202503458","url":null,"abstract":"Alloying is effective for enhancing the hydrogen evolution reaction (HER) activity of Pt. Binary PdPt alloys outperform monometallic Pt in terms of HER activity. However, their HER activity can be improved further by incorporating a third element. In this study, we demonstrate that incorporating Au into PdPt alloys alters their electronic structures, enhancing their HER activity. Homogeneous solid-solution Au20Pd40Pt40 alloy nanoparticles (NPs) were synthesized using a one-pot polyol method. Elemental mapping using scanning transmission electron microscopy (STEM) combined with energy-dispersive X-ray spectroscopy confirmed the uniform distribution of the three elements within the NPs, demonstrating the formation of a solid-solution alloy. X-ray absorption near-edge structure analysis indicated electron transfer from Au to Pt and Pd, which generated a more reduced electronic state of Pt compared to that in the Pd50Pt50 alloy NPs. Electrochemical measurements in 0.5 M H2SO4 revealed that Au20Pd40Pt40 alloy NPs had a lower overpotential (15.4 mV at 10 mA cm-2) and a higher intrinsic turnover frequency (TOF) than Pd50Pt50 alloy and monometallic Pt NPs. These findings demonstrate that homogeneously mixing a third element into binary alloy NPs is effective for enhancing the catalytic performance.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e03458"},"PeriodicalIF":3.7,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147758167","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

Tetrazine Ligation in Living Systems: Beyond Fast Kinetics to Effective Bioorthogonality. 生命系统中的四氮结扎：超越快速动力学到有效的生物正交性。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-04-24 DOI: 10.1002/chem.71028

Junhyeong Yim, Junyoung Park, Youngjun Lee, Jongmin Park

{"title":"Tetrazine Ligation in Living Systems: Beyond Fast Kinetics to Effective Bioorthogonality.","authors":"Junhyeong Yim, Junyoung Park, Youngjun Lee, Jongmin Park","doi":"10.1002/chem.71028","DOIUrl":"https://doi.org/10.1002/chem.71028","url":null,"abstract":"Tetrazine-based bioorthogonal chemistry has become a cornerstone of chemical biology due to the exceptional reaction rate and selectivity of the inverse electron-demand Diels-Alder (IEDDA) reaction. These properties have enabled a wide range of applications, from live-cell labeling to in vivo imaging and chemical manipulation of biomolecules. However, accumulating evidence indicates that rapid reaction kinetics alone are insufficient to ensure reliable performance in complex biological environments. In this Review, we examine tetrazine bioorthogonal chemistry from the perspective of effective orthogonality, defined as the ability to react selectively and productively in living systems. We summarize key failure modes that compromise orthogonality in biological settings and discuss emerging design strategies aimed at mitigating these limitations. Building on this framework, we integrate comparative studies that assess tetrazine performance across different levels of biological complexity, highlighting how the dominant constraints on bioorthogonal ligation evolve from cellular to in vivo and compartment-restricted environments. Together, these insights provide a unified perspective on why strategies optimized in simplified systems often fail upon biological translation and offer guidance for the rational development of bioorthogonal reagents for use in living systems.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e71028"},"PeriodicalIF":3.7,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147758205","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

Shuttle Suppression in Zinc-Iodine Batteries via a Gd/Eu Co-Doped Cerium Oxide Modified Separator. Gd/Eu共掺氧化铈改性隔板抑制锌碘电池的穿梭。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-04-24 DOI: 10.1002/chem.202503632

Shihan Cheng, Yanxin Li, Hongfeng Jia, Junning Kou, Xiaoming Hu, Liang Zhao, Yun Geng, Changyan Zhu, Bingqiu Liu

{"title":"Shuttle Suppression in Zinc-Iodine Batteries via a Gd/Eu Co-Doped Cerium Oxide Modified Separator.","authors":"Shihan Cheng, Yanxin Li, Hongfeng Jia, Junning Kou, Xiaoming Hu, Liang Zhao, Yun Geng, Changyan Zhu, Bingqiu Liu","doi":"10.1002/chem.202503632","DOIUrl":"https://doi.org/10.1002/chem.202503632","url":null,"abstract":"Zn-I2 batteries have emerged as a compelling electrochemical energy storage platform, benefiting from their excellent theoretical capacity, inherent safety, and low cost. Nevertheless, their development, especially on the separator, is impeded by the severe shuttle of polyiodides and sluggish reaction kinetics. To address these challenges, this work demonstrates the design of Gadolinium (Gd) and Europium (Eu) co-doped cerium oxide (CeO2) nanoparticles as a functional separator coating, utilizing experimental techniques paired with density functional theory (DFT) calculations to evaluate performance. The results reveal that Gd/Eu co-doping modulates the electronic structure of CeO2, providing abundant active sites that strongly chemisorb polyiodides and act as excellent electrocatalysts to accelerate the reversible conversion between I3 - and I-. Consequently, the batteries employing the Ce0.96Gd0.02Eu0.02O2 coating effectively suppress the polyiodide shuttle, exhibiting outstanding high-rate performance with a capacity of 193 mAh g-1 at 10 A g-1 and maintaining stable cycling for 50,000 cycles. This study provides a potential pathway for fabricating high-performance Zn-I2 batteries by integrating adsorption and catalytic conversion functions into a single separator modification.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e03632"},"PeriodicalIF":3.7,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147758118","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

A High-Refractive-Index and Partially Chemically Recyclable Polymer From a Sulfur-Rich Spiro-and-Fused Tricyclic Monomer. 一种高折射率和部分化学可回收的富硫螺旋-熔融三环单体聚合物。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-04-24 DOI: 10.1002/chem.202503653

Kaiyu Niu, Ting Wu, Meiqi Luo, Xiaoyu Xie, Junfeng Zhou

引用次数: 0

Proton-Exchanged Montmorillonite With Interlayer Accessibility as a Solid Acid Catalyst for the Upcycling of Polyoxymethylene. 具有层间可及性的质子交换蒙脱土作为固体酸催化剂用于聚甲醛的升级回收。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-04-24 DOI: 10.1002/chem.71054

José F Noboa, Sho Yamaguchi, Takato Mitsudome, Tomoo Mizugaki

引用次数: 0

State-of-the-Art and Synthetic Challenges for Hydrosilane Production. 氢硅烷生产的最新技术和合成挑战。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-04-24 DOI: 10.1002/chem.70978

Gabriel Durin, Albane Fontaine, Jean-Claude Berthet, Thibault Cantat

引用次数: 0

Bimetallic MOFs With Enzyme-Mimetic Active Sites for Nerve Agent Detoxification: Synergistic Insights Into Impeccable Performance From Experiment and Theory. 具有神经毒剂解毒酶模拟活性位点的双金属mof：从实验和理论的协同见解到无可挑剔的性能。

IF 3.7 2区化学

Chemistry - A European Journal Pub Date : 2026-04-22 Epub Date: 2026-02-04 DOI: 10.1002/chem.202502988

Dipankar Singha, Malay Kumar Rana

{"title":"Bimetallic MOFs With Enzyme-Mimetic Active Sites for Nerve Agent Detoxification: Synergistic Insights Into Impeccable Performance From Experiment and Theory.","authors":"Dipankar Singha, Malay Kumar Rana","doi":"10.1002/chem.202502988","DOIUrl":"10.1002/chem.202502988","url":null,"abstract":"Nerve agents pose severe risks to human health, underscoring the need for efficient decontamination strategies. This study explores metal-organic frameworks (MOFs) as catalytic platforms owing to their structural tunability, redox-active metal centers, and abundance of Lewis acidic sites. Single- and bimetallic UiO-series MOFs incorporating Ce(IV) and Zr(IV) (confirmed by inductively coupled plasma mass spectrometry) were synthesized using different approaches, including ligand exchange and controlled crystal growth, with four ligands: BDC, BDC-NH2, BDC-NO2, and BDC-(OH)2. These frameworks were systematically evaluated for the hydrolysis of p-nitrophenyl phosphate (PNPP), a simulant for G- and V-type nerve agents (e.g., sarin, VX). The design strategy leverages the redox activity and cooperativity of Ce/Zr nodes, alongside the caging effect of the MOF architecture, to enhance catalytic efficacy. Density functional theory (DFT) calculations provided mechanistic insights into sarin degradation, revealing how metal composition and linker functionality govern substrate binding and activation. Experimental results demonstrated that bimetallic Ce/Zr-MOFs with electron-withdrawing functional groups exhibit significantly accelerated hydrolysis under basic aqueous conditions. Notably, a Ce/Zr-MOF with -NO2 functionality achieved the shortest half-life of 1.16 min. These findings highlight Ce/Zr-UiO frameworks as promising candidates for real-world nerve agent decontamination technologies.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e02988"},"PeriodicalIF":3.7,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146117295","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