Chemical Communications最新文献

英文中文

Stereochemical engineering of GLP-1 blocks proteolysis while preserving its metal-binding core GLP-1的立体化学工程阻断了蛋白质水解，同时保留了其金属结合核心

IF 4.9 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications

Pub Date : 2026-10-20 DOI: 10.1039/d6cc04811k

Gabriela Potoczniak,Mariusz Dziadas,Danuta Witkowska,Paweł Figurski,Beata Nowak,Magdalena Rowinska-Zyrek

Glucagon-like peptide-1 (GLP-1) is rapidly degraded by proteases, which limits its stability in biological systems. Here, we demonstrate that appropriate stereochemical engineering through selective D-amino acid substitutions efficiently blocks proteolysis while preserving the intrinsic metal-binding core of the peptide. Despite substantial modification of the primary structure, the engineered analogue retains its ability to coordinate metal ions through the conserved coordination motif. These findings reveal an unexpected robustness of the GLP-1 metal-binding site and show that proteolytic stability can be enhanced without disrupting metal-binding functionality. The work establishes stereochemical engineering as a strategy to decouple enzymatic stability from coordination properties in peptide systems.

胰高血糖素样肽-1 （GLP-1）被蛋白酶迅速降解，这限制了其在生物系统中的稳定性。在这里，我们证明了通过选择性d -氨基酸取代进行适当的立体化学工程可以有效地阻断蛋白质水解，同时保留肽固有的金属结合核心。尽管对初级结构进行了实质性的修改，但工程模拟物通过保守的配位基序保留了其协调金属离子的能力。这些发现揭示了GLP-1金属结合位点的意外稳健性，并表明可以在不破坏金属结合功能的情况下增强蛋白水解稳定性。这项工作建立了立体化学工程作为一种策略来解耦肽系统中酶的稳定性和配位特性。

引用次数: 0

Nonlinear Optical Response in Water-Soluble Ionic Carbon Nitride Photocatalysts: A Two-Photon Absorption Study 水溶性离子型氮化碳光催化剂的非线性光学响应：双光子吸收研究

IF 4.9 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications

Pub Date : 2026-10-19 DOI: 10.1039/d6cc05564h

Nikita Vashistha,Arindam Konar,Johannes Liessem,Radim Beranek,Benjamin Dietzek-Ivanšić

The two-photon absorption in water-soluble ionic PHI photocatalysts is investigated by single-beam z-scan. A systematic variation of sample concentration and laser irradiance shows that nonlinear absorption in the material is governed by trap states, the nature of which is controlled by the type of cation.

用单束z扫描研究了水溶性离子型PHI光催化剂的双光子吸收。样品浓度和激光辐照度的系统变化表明，材料中的非线性吸收是由阱态控制的，其性质由阳离子的类型控制。

引用次数: 0

Recent advances in oxidative radical annulation of 1,n-enynes: synthetic methodology and synthetic applications based on radical precursors 1，n-炔的氧化自由基环化研究进展：基于自由基前体的合成方法及应用

IF 4.9 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications

Pub Date : 2026-10-19 DOI: 10.1039/d6cc05357b

Caijian Nie,Ke-Jing Li,Hao-Ran Liu,Jun-Bo Wang,Yan Liu,Shuai-Kang Guo,Yukai Liu,Kai Sun,Xi Li,Xingfeng Bai,Yuan-Yuan Sun,Yan-Ping Zhu

1,n-Enynes compounds are versatile reagents for synthesising a range of complex cyclic systems, owing to their multifunctional reactive sites. Recently, oxidative radical annulation of 1,n-enynes has emerged as a versatile and potent approach, facilitating the rapid and efficient construction of structurally diverse and biologically active complex frameworks. The numerous successful examples presented herein demonstrate the potential of this approach in organic synthesis, materials science, and medicinal chemistry. Various carbon-, sulfur-, nitrogen-, and phosphorus-centred radicals have been employed in the annulation of enynes to synthesise many valuable molecules, such as natural products, active pharmaceutical ingredients, and drug-like molecules. This review comprehensively summarises recent advancements in this domain, with a specific emphasis on the categorisation of radical precursors. Illustrative instances of oxidative radical annulation involving various radical precursors are provided to give a thorough overview of current research advancements and to offer insights into future directions in this field.

1、n-炔类化合物由于具有多功能反应位点，是合成一系列复杂环体系的多用途试剂。近年来，1，n-炔的氧化自由基环化已成为一种多功能和有效的方法，有助于快速有效地构建结构多样和具有生物活性的复杂框架。本文介绍的许多成功的例子证明了这种方法在有机合成、材料科学和药物化学方面的潜力。各种以碳、硫、氮和磷为中心的自由基被用于乙烯的环化，以合成许多有价值的分子，如天然产物、活性药物成分和类药物分子。这篇综述全面总结了这一领域的最新进展，特别强调了自由基前体的分类。提供了涉及各种自由基前体的氧化自由基环化的实例，以全面概述当前的研究进展，并为该领域的未来方向提供见解。

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引用次数: 0

Does a Compositionally Complex Perovskite Oxide Exsolve Nanoparticles during Reverse Water–Gas Shift? Insights from La(CrMnFeCoNi)O 复合钙钛矿氧化物在逆水气转换过程中会暴露纳米颗粒吗？来自La(CrMnFeCoNi)O的见解

IF 4.9 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications

Pub Date : 2026-10-19 DOI: 10.1039/d6cc03526d

Ting-Hao Liu,Rahul Mishra,Sumit Kumar,Po-Yang Peng,Ying-Rui Lu,Chi Liang Chen,Yu-Chuan Lin

H2-pretreated La(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3 retains a predominantly oxide-like perovskite framework without detectable crystalline nanoparticle exsolution. Its redox-responsive Co/Ni coordination is associated with selective RWGS performance while suppressing extensive methanation.

h2预处理的La(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3保留了主要的氧化物样钙钛矿骨架，没有检测到晶体纳米颗粒的析出。它的氧化还原响应Co/Ni配位与选择性RWGS性能有关，同时抑制广泛的甲烷化。

引用次数: 0

One-Dimensional Multicavity Cofacial Porphyrin Architectures as Photoactive Materials 一维多腔共面卟啉结构作为光活性材料

IF 4.9 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications

Pub Date : 2026-10-19 DOI: 10.1039/d6cc05897c

Beatriz Torres Calvo,Marina González-Sánchez,A. Priscila Gia,Nicoló Tonelli,Mariam Barawi,Víctor Antonio de la Peña O'Shea,Marta Liras,Miguel Garcia-Iglesias,David Gonzalez Rodriguez,Alberto de Juan

We show here that dynamic covalent imine chemistry enables the formation of 1D multicavity cofacial porphyrin architectures, Poly-2H and Oli-2H. Despite its closely related electronic properties to the discrete Cage-2H, Oli-2H exhibits enhanced photoelectrochemical activity, which is retained in aqueous media. This strategy provides a versatile platform for extending cofacial porphyrins towards functional molecular materials.

我们在这里表明，动态共价亚胺化学可以形成一维多腔共面卟啉结构，Poly-2H和Oli-2H。尽管其电子性质与离散的Cage-2H密切相关，但Oli-2H表现出增强的光电化学活性，并且在水介质中保持不变。该策略为将共面卟啉扩展到功能分子材料提供了一个通用的平台。

引用次数: 0

Toxic oxo-anion capture by metal-organic frameworks (MOFs): insights via single-crystal-to-single-crystal transformations. 金属有机框架（mof）的有毒氧阴离子捕获：通过单晶到单晶转化的见解。

IF 4.3 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications

Pub Date : 2026-10-19 DOI: 10.1039/d6cc06095a

Rupam Sahoo, Santanu Chand

The contamination of water bodies and soil with toxic oxo-anions poses significant environmental and health risks. Conventional water treatment technologies often fall short in addressing the selective and efficient removal of these contaminants due to challenges related to their solubility, mobility, and persistence in natural systems. In this regard, metal-organic frameworks (MOFs) have emerged as one of the most promising classes of materials for oxo-anion removal. Despite numerous advances in the sensing capabilities of MOFs, the identification of intermediate steps, as well as the precise location and exact binding interactions of the entrapped oxo-anions, is still in its infancy and requires in-depth structural analysis of SC-SC transformations during the ion-exchange processes. In this review, we aim to summarize recent progress in MOF sensors for which SC-XRD structural insights into the entrapped oxo-anions are available and discuss these findings in detail to enhance molecular-level understanding of the ion-exchange process in MOF chemistry. Most importantly, we present a 'critical analysis' section considering several critical aspects that are often overlooked during development and made future recommendations in the 'future prospects' section.

有毒氧阴离子对水体和土壤的污染构成重大的环境和健康风险。由于这些污染物在自然系统中的溶解度、流动性和持久性面临挑战，传统的水处理技术往往无法解决这些污染物的选择性和有效去除问题。在这方面，金属有机框架（MOFs）已成为最有前途的一类氧阴离子去除材料之一。尽管mof的传感能力取得了许多进步，但中间步骤的识别，以及被捕获的氧阴离子的精确位置和确切的结合相互作用，仍处于起步阶段，需要对离子交换过程中SC-SC转化进行深入的结构分析。在这篇综述中，我们旨在总结MOF传感器的最新进展，通过SC-XRD结构来了解捕获的氧阴离子，并详细讨论这些发现，以增强对MOF化学中离子交换过程的分子水平理解。最重要的是，我们提出了一个“批判性分析”部分，考虑了在开发过程中经常被忽视的几个关键方面，并在“未来前景”部分提出了未来的建议。

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引用次数: 0

Metal-organic frameworks for photocatalytic CO₂ reduction: recent advances, design principles, and mechanistic insights. 光催化CO2还原的金属有机框架：最新进展，设计原则和机制见解。

IF 4.3 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications

Pub Date : 2026-10-19 DOI: 10.1039/d6cc03786k

Hai-Xiong Liu, Ying-Xuan He, Zhen-Zeng Wu, Zheng-Han Cai, Rui-Xu Cai, Jun Zhang, Xiao-Ya Wang, Chen-Yang Yao, Sheng-Yun Zhao, Liang-Liang Zhang

The rising atmospheric CO₂ levels demand sustainable technologies for converting CO₂ into fuels and chemicals. Photocatalytic CO₂ reduction mimics natural photosynthesis but faces great challenges from the inertness of CO₂, high CO bond energy, slow kinetics, and competing hydrogen evolution. With ultrahigh surface areas, tunable porosity, and modular architectures, metal-organic frameworks (MOFs) serve as a versatile platform, enabling molecular-level integration of light harvesting and catalysis to overcome these limitations. Rational optimization via linker functionalization, heterometal doping, defect engineering, heterojunctions, and morphology control has improved the efficiency and selectivity in CO₂ photoreduction. This review summarizes recent advances in framework engineering and their photophysical mechanisms. Despite progress, there still remain great challenges, such as limited visible-light absorption, low charge mobility, rapid recombination, poor stability, difficulty achieving C₂₊ products, and insufficient operando understanding. Future efforts should focus on π-conjugated frameworks, conductive linkers, single-atom/dual-site centers to enable C-C coupling, and in situ/operando spectroscopies combined with theoretical analysis. Moreover, developing sacrificial-agent-free systems using water as an electron donor shows great promise for practical solar-fuel production.

不断上升的大气二氧化碳水平需要可持续的技术将二氧化碳转化为燃料和化学品。光催化CO2还原模拟了自然光合作用，但面临着CO2惰性、高碳氧键能、慢动力学和竞争性析氢的巨大挑战。金属有机框架（mof）具有超高表面积、可调孔隙率和模块化结构，可以作为一个多功能平台，实现光收集和催化的分子级集成，克服了这些限制。通过连接子功能化、异质金属掺杂、缺陷工程、异质结和形貌控制等合理优化，提高了CO2光还原的效率和选择性。本文综述了近年来框架工程及其光物理机制的研究进展。尽管取得了进展，但仍然存在很大的挑战，如可见光吸收有限、电荷迁移率低、重组速度快、稳定性差、难以获得C2+产物以及对operando的理解不足。今后的工作将集中在π共轭框架、导电连接体、单原子/双位点中心以实现C-C耦合，以及结合理论分析的原位/operando光谱。此外，开发以水为电子供体的无牺牲剂系统，对实际的太阳能燃料生产大有希望。

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引用次数: 0

Metal-free, photochemical on-DNA thiol-yne reaction for the stereoselective synthesis of Z-alkenyl sulfides and vinyl sulfoximines. 无金属光化学dna上的硫醇炔反应立体选择性合成z -烯基硫化物和乙烯基亚砜胺。

IF 4.3 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications

Pub Date : 2026-10-19 DOI: 10.1039/d6cc05768c

Fanming Zeng, Zhirong Zheng, Yagong Wang, Ivan Hu, Xue Zhao, Feng Fan, Lijun Xue, Kexin Yang, Yun Jin Hu

We present visible-light-driven, metal-free on-DNA thiol-yne reaction using benzil under 365 nm light to synthesize alkenyl sulfides. This mild, aqueous method preserves DNA integrity and enables direct conversion to alkenyl sulfoximines, expanding the chemical space for DNA-encoded library screening.

我们提出了在365 nm光下，用苯乙烯在可见光驱动下合成烯基硫化物的无金属dna上的硫醇炔反应。这种温和的水相方法保留了DNA的完整性，并能够直接转化为烯基亚砜胺，扩大了DNA编码文库筛选的化学空间。

引用次数: 0

Structured Light Induced Colloidal Lithography Via Photosensitive Surfactants 利用光敏表面活性剂的结构光诱导胶态光刻

IF 4.9 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications

Pub Date : 2026-10-19 DOI: 10.1039/d6cc03660k

Isabel Meier,Anjali Sharma,Maren Umlandt,Fabian Rohne,Nino Lomadze,Svetlana Santer,Marek Bekir

Structured colloidal lithography's susceptibility to drying effects hinders the development of large, patternd functional macrostructures outside an aqueous environment. We herein report on the optimal parameters to securely adhere selfassembled, previously mobile porous SiO2 microparticles to a glass surface using a photoswitchable azobenzene-containing surfactant in combination with UV light.Many soft and biological systems adapt their structure and properties in response to external stimuli by reorganizing at molecular and mesoscopic scales. This principle has motivated the development of synthetic smart materials that can reversibly switch specific properties "on" and "off" under controlled conditions. Thereof, the development of Smart Surfaces requires functional 2D macrostructures -large areas of spatially and temporally precisely positioned functionalized microparticles outside an aqueous environment. In this regard, Colloidal Lithography (CL) has been proven to be especially viable. It is used intensively in fields such as solar and thermophotovoltaic, [1] biosensors, [2] plasmonics, [3] photonics, [4] plasmonic, [5] biology, [6] various sensors, [7] renewable energy, [8] with specific optical, magnetic, electrochemical and catalytic properties. [9] In this, the aspect of self-assembly has become vital in building custom microstructures on a planar substrate. [10,11] We present a cutting-edge adhesion technique: Contrary to costly and time-intense current lithography methods, Material Lithography and various forms of CL (namely Oblique Angle Deposition, [12] Nanosphere Lithography, [13] Langmuir-Blodgett CL, [14] Binary CL, [15] Convective Self-Assembly, [16] Colloidal Templating [17] ), ours succeeds without the application of physical or chemical masks or templating procedures and is dynamic-based. Our technique uses the spatialtemporal manipulation of mobile microparticles (MP) that

结构胶体光刻对干燥效应的敏感性阻碍了在水环境外形成大的、有图案的功能宏观结构。我们在此报告了使用可光切换的含偶氮苯表面活性剂结合紫外光将自组装的、先前可移动的多孔SiO2微颗粒安全地粘附到玻璃表面的最佳参数。许多软系统和生物系统通过在分子和介观尺度上的重组来适应外部刺激的结构和性质。这一原理推动了合成智能材料的发展，这种材料可以在受控条件下可逆地“打开”和“关闭”特定性能。因此，智能表面的开发需要功能的二维宏观结构-水环境外的大面积空间和时间精确定位的功能化微粒。在这方面，胶态光刻（CL）已被证明是特别可行的。它被广泛应用于太阳能和热光伏、[1]生物传感器、[2]等离子体、[3]光子学、[4]等离子体、[5]生物、[6]各种传感器、[7]可再生能源、[8]具有特定的光学、磁性、电化学和催化性能等领域。在这种情况下，自组装方面对于在平面衬底上构建定制微结构变得至关重要。[10,11]我们提出了一种前沿的粘附技术：与昂贵且耗时的电流光刻方法、材料光刻和各种形式的CL（即斜角度沉积、[12]纳米球光刻、[13]Langmuir-Blodgett光刻、[14]二元光刻、[15]对流自组装、[16]胶体模板[17]）相反，我们的技术不需要应用物理或化学掩膜或模板程序，而且是基于动态的。我们的技术使用移动微粒（MP）的时空操纵

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Type-I Bi2S3/S-In(OH)3 Heterostructures for Promoting C-C Coupling in Photocatalytic CO2 Reduction to C2H4 i型Bi2S3/S-In(OH)3异质结构促进光催化CO2还原为C2H4中C-C偶联

IF 4.9 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications

Pub Date : 2026-10-19 DOI: 10.1039/d6cc06425f

Wenhui Lin,Xingwang Yan,Jiajia Liu,Ying Hu,Chenyang Leng,Bin Wang,Jintao Dong,Huaming Li,Yuanbin She,Paul K. Chu,Jiexiang Xia

Herein, a Bi2S3/S-In(OH)3 heterostructure is prepared by an oil-bath treatment and hydrothermal vulcanization. In this heterostructure, hydroxyl-rich S-In(OH)3 promotes CO2 adsorption and interfacial charge regulation, whereas narrow-bandgap Bi2S3 serves as the main reduction-active component. The results provide a feasible strategy for designing indium-based heterostructured photocatalysts for CO2-to-C2H4 conversion.

本文通过油浴处理和水热硫化制备了Bi2S3/S-In(OH)3异质结构。在这种异质结构中，富含羟基的S-In(OH)3促进CO2吸附和界面电荷调节，而窄带隙Bi2S3是主要的还原活性组分。研究结果为设计铟基异质结构co2 - c2h4光催化剂提供了一种可行的策略。

引用次数: 0

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