Chemistry - An Asian Journal最新文献_第10页

Copillar[5]arene Appended Pyrene Schiff Base: Photophysics, Aggregation Induced Emission and Picric Acid Recognition. 柱状[5]芳烃附加芘席夫碱：光物理、聚集诱导发射和苦味酸识别。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-15 DOI: 10.1002/asia.202401586

Subhasis Ghosh, Kumaresh Ghosh

{"title":"Copillar[5]arene Appended Pyrene Schiff Base: Photophysics, Aggregation Induced Emission and Picric Acid Recognition.","authors":"Subhasis Ghosh, Kumaresh Ghosh","doi":"10.1002/asia.202401586","DOIUrl":"10.1002/asia.202401586","url":null,"abstract":"Herein, we report the synthesis of copillar[5]arene-based pyrene Schiff base 1 and its characterization by using 1H, 13C NMR, FT-IR and mass spectrometry. UV-vis absorption, steady-state fluorescence and time-resolved fluorescence are done to elucidate the photophysical behaviors of 1. To understand the electronic structure of 1, density functional theory (DFT) calculations are performed. Owing to the presence of pyrene via a Schiff base linkage, compound 1 exhibits aggregation-induced emission (AIE) characteristics. It shows aggregation in aqueous THF and DMF. The aggregation behavior is successfully demonstrated by steady-state fluorescence, dynamic light scattering (DLS) and time-correlated single-photon counting (TCSPC) experiments. Experimental findings reveal that hydrophobic effect is the driving force in the formation of aggregates. As application, the aggregated state of 1 in aqueous THF fluorimetrically recognizes picric acid (PA) selectively over a series of nitro- and nonnitroaromatics with a detection limit of 1.62×10-7 M. The emission of the aggregated state is fully quenched upon interaction with PA.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401586"},"PeriodicalIF":3.5,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Construction of Luminescent Three-Dimensional Covalent Organic Frameworks for Molecular Decoding of Wide Organic Compounds. 用于广泛有机化合物分子解码的发光三维共价有机框架的构建。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-15 DOI: 10.1002/asia.202401423

Dan Chen, Xu Jia, Jiarui Zuo, Xuhan Zheng, Qingzhu Sun, Hui Liu, Yingjie Zhao

引用次数: 0

Rational Design of Porous Organic Framework (POF) for Efficient Conversion of CO₂ to Cyclic Carbonates and 2-Oxazolidinones at Atmospheric Pressure Conditions. 常压条件下CO2高效转化为环碳酸盐和2-恶唑烷酮的多孔有机骨架的合理设计

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-15 DOI: 10.1002/asia.202401546

Vaibhav Parihar, Bharat Kumar, Gulshan Singh, C M Nagaraja

{"title":"Rational Design of Porous Organic Framework (POF) for Efficient Conversion of CO2 to Cyclic Carbonates and 2-Oxazolidinones at Atmospheric Pressure Conditions.","authors":"Vaibhav Parihar, Bharat Kumar, Gulshan Singh, C M Nagaraja","doi":"10.1002/asia.202401546","DOIUrl":"10.1002/asia.202401546","url":null,"abstract":"Carbon dioxide (CO2) capture and its subsequent catalytic fixation into usable compounds represent a potential approach for addressing the energy problem and the implications of global warming. Hence, it is necessary to develop effective catalytic systems required for the transformation of CO2 into valuable chemicals/fuels. Herein, we rationally designed a hydroxyl-functionalized porous organic framework (OH-POF) consisting of both acidic (OH) as well as basic N sites for the transformation of CO2 using epoxides for the production of cyclic carbonates (CCs), a useful commodity chemical under environmental-friendly, metal/solvent/co-catalyst-free conditions. Moreover, OH-POF was post-synthetically modified to anchor non-noble metal, Zn(II) to generate Zn-POF and further explored it for the efficient functionalization of CO2 with propargylic amines to generate valuable bioactive 2-oxazolidinones. Significantly, both OH-POF and Zn-POF demonstrated exceptional reusability with catalytic efficacy retained across numerous cycles of use. Notably, this study showcases a green and sustainable process for utilization of CO2 under environmentally favorable ambient conditions into two highly valuable compounds, viz cyclic carbonates and 2-oxazolidinones.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401546"},"PeriodicalIF":3.5,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142996711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Stabilizing Contorted Doubly-Reduced Tetraphenylene with Heavy Alkali Metal Complexation: Crystallographic and Theoretical Evidence. 重碱金属络合稳定扭曲双还原四苯炔：晶体学和理论证据。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-15 DOI: 10.1002/asia.202401498

Yikun Zhu, Zheng Zhou, Zheng Wei, Alexandra Tsybizova, Renana Gershoni-Poranne, Marina A Petrukhina

{"title":"Stabilizing Contorted Doubly-Reduced Tetraphenylene with Heavy Alkali Metal Complexation: Crystallographic and Theoretical Evidence.","authors":"Yikun Zhu, Zheng Zhou, Zheng Wei, Alexandra Tsybizova, Renana Gershoni-Poranne, Marina A Petrukhina","doi":"10.1002/asia.202401498","DOIUrl":"https://doi.org/10.1002/asia.202401498","url":null,"abstract":"The two-fold reduction of tetrabenzo[a,c,e,g]cyclooctatetraene (TBCOT, or tetraphenylene, 1) with K, Rb, and Cs metals reveals a distinctive core transformation pathway: a newly formed C-C bond converts the central eight-membered ring into a twisted core with two fused five-membered rings. This C-C bond of 1.589(3)-1.606(6) Å falls into a single σ-bond range and generates two perpendicular π-surfaces with dihedral angles of 110.3(9)°-117.4(1)° in the 1TR 2- dianions. As a result, the highly contorted 1TR 2- ligand exhibits a \"butterfly\" shape and could provide different coordination sites for metal-ion binding. The K-induced reduction of 1 in THF affords a polymeric product with low solubility, namely [{K+(THF)}2(1TR 2-)] (K2-1TR 2-). The use of a secondary ligand facilitates the isolation of discrete complexes with heavy alkali metals, [Rb+(18-crown-6)]2[1TR 2-] (Rb2-1TR 2-) and [Cs+(18-crown-6)]2[1TR 2-] (Cs2-1TR 2-). Both internal and external coordination are observed in K2-1TR 2-, while the bulky 18-crown-6 ligand only allows external metal binding in Rb2-1TR 2- and Cs2-1TR 2-. The reversibility of the two-fold reduction and bond rearrangement is demonstrated by NMR spectroscopy. Computational analysis shows that the heavier alkali metals enable effective charge transfer from the 1TR 2-TBCOT dianion, however, the aromaticity of the polycyclic ligand remains largely unaffected.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401498"},"PeriodicalIF":3.5,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142996864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Controllable Synthesis of Heterogeneous ZnS/SnS₂ Encapsulated in Hollow Nitrogen-Doped Carbon Microcubes as Anode for High-Performance Li-ion Capacitors. 高性能锂离子电容器负极氮掺杂碳微立方的可控非均相ZnS/SnS2封装。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-15 DOI: 10.1002/asia.202400926

Huandong Liu, Zhengju Zhu, Muslum Demir, Ying He, Petr Saha, Qilin Cheng

{"title":"Controllable Synthesis of Heterogeneous ZnS/SnS2 Encapsulated in Hollow Nitrogen-Doped Carbon Microcubes as Anode for High-Performance Li-ion Capacitors.","authors":"Huandong Liu, Zhengju Zhu, Muslum Demir, Ying He, Petr Saha, Qilin Cheng","doi":"10.1002/asia.202400926","DOIUrl":"10.1002/asia.202400926","url":null,"abstract":"Li-ion capacitors (LICs) integrate the desirable features of lithium-ion batteries (LIBs) and supercapacitors (SCs), but the kinetic imbalance between the both electrodes leads to inferior electrochemical performance. Thus, constructing an advanced anode with outstanding rate capability and terrific redox kinetics is crucial to LICs. Herein, heterostructured ZnS/SnS2 nanosheets encapsulated into N-doped carbon microcubes (ZnS/SnS2@NC) are successfully fabricated. The sufficient ZnS/SnS2 heterostructure possesses abundant active sites, and the built-in electric field formed at the heterojunction interface can facilitate electron/ion migration. The interconnected hollow carbon layers could reduce the electron transfer resistance effectively and accommodate the volume change of SnS2, thereby maintaining the structural stability. Due to the synergy between multi-components, the ZnS/SnS2@NC anode demonstrates impressive Li storage performance with an excellent cyclic durablity (690 mAh g-1 at 0.5 A g-1 after 600 cycles) and considerable rate capability. Moreover, when matched with active carbon, the ZnS/SnS2@NC based LIC device delivers an admirable energy density of 134.1 Wh kg-1 and a high power output of 11,250 W kg-1, as well as remarkable capacity retention of 73.2 % after 6,000 cycles at 1.0 A g-1. The experimental results demonstrate the significance of optimized heterointerface engineering toward construction of electrode materials with high-performance for Li storage.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202400926"},"PeriodicalIF":3.5,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142982114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Brønsted Acid-Catalyzed Regioselective Coupling between Azoles and Arylcyclobutenes. Brønsted酸催化氮唑与芳基环丁烯之间的区域选择性偶联。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-14 DOI: 10.1002/asia.202401570

Chunxiu Jing, Juanjuan Wang, Jie Chang, Yi He, Zhaojing Zheng, Hao Wei

引用次数: 0

Thiazolidinone-Based Electron-Collecting Monolayers for n-i-p Perovskite Solar Cells. n-i-p钙钛矿太阳能电池的噻唑烷酮基电子收集单层膜。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-14 DOI: 10.1002/asia.202401344

Yuki Miyake, Tomoya Nakamura, Minh Anh Truong, Richard Murdey, Atsushi Wakamiya

引用次数: 0

Highly Efficient Schottky Heterojunctions for Photocatalytic Hydrogen Evolution: Facile Synthesis of Hollow Nano-ZnSe Spheres on Ti₃C₂-Nanosheets. 光催化析氢的高效肖特基异质结：在ti3c2纳米片上快速合成空心纳米znse球。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-14 DOI: 10.1002/asia.202401772

Yifan Liao, Huajun Gu, Yamei Huang, Xinglin Wang, Jiayi Meng, Quanmei Zhou, Yuchen Wei, Wei-Lin Dai

{"title":"Highly Efficient Schottky Heterojunctions for Photocatalytic Hydrogen Evolution: Facile Synthesis of Hollow Nano-ZnSe Spheres on Ti3C2-Nanosheets.","authors":"Yifan Liao, Huajun Gu, Yamei Huang, Xinglin Wang, Jiayi Meng, Quanmei Zhou, Yuchen Wei, Wei-Lin Dai","doi":"10.1002/asia.202401772","DOIUrl":"10.1002/asia.202401772","url":null,"abstract":"Traditional photocatalysts often have limited efficiency due to the high recombination rate of photogenerated electron-hole pairs. In this work, we synthesized 3D/2D ZnSe-MXene Schottky heterojunctions by an in situ electrostatic self-assembly method. Notably, the 3 % MXene-ZnSe composite exhibited an optimized photocatalytic hydrogen production rate of 765.0 μmol g-1 h-1, about 1.6 times higher than that of pristine ZnSe. MXene's high conductivity and large surface area enhance catalytic performance by providing more active sites and efficient electron transfer pathways from ZnSe to MXene. This accelerates the separation and movement of photogenerated carriers, significantly reducing recombination. We have investigated the photocatalytic hydrogen production mechanism of the ZnSe-MXene composites using various characterization techniques. Our findings provide favourable insights into the synergistic effects within the heterojunction, offering valuable guidance for the design and development of advanced photocatalytic materials.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401772"},"PeriodicalIF":3.5,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142982168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Smart Luminescent Materials for Emerging Sensors: Fundamentals and Advances. 用于新兴传感器的智能发光材料：基本原理和进展。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-14 DOI: 10.1002/asia.202401328

Dilip Kumar Maiti, Anindya S Manna, Sukla Ghosh, Tanmoy Ghosh, Nilay Karchaudhuri, Sandip Das, Antara Roy

{"title":"Smart Luminescent Materials for Emerging Sensors: Fundamentals and Advances.","authors":"Dilip Kumar Maiti, Anindya S Manna, Sukla Ghosh, Tanmoy Ghosh, Nilay Karchaudhuri, Sandip Das, Antara Roy","doi":"10.1002/asia.202401328","DOIUrl":"https://doi.org/10.1002/asia.202401328","url":null,"abstract":"Smart luminescent materials have drawn a significant attention owing to their unique optical properties and versatility in sensor applications. These materials, encompassing a broad spectrum of organic, inorganic, and hybrid systems including quantum dots, organic dyes, and metal-organic frameworks (MOFs), offer tunable emission characteristics that can be engineered at the molecular or nanoscale level to respond to specific stimuli, such as temperature, pH, and chemical presence. Recent advancements have been driven by the integration of nanotechnology, which enhances the sensitivity and selectivity of luminescent materials in sensor platforms. The development of photoluminescent and electrochemiluminescent sensors, for instance, has enabled real-time detection and quantification of target analytes with high accuracy. Additionally, the incorporation of these materials into portable, user-friendly devices, such as smartphone-based sensors, broadens their applicability and accessibility. Despite their potential, challenges remain in optimizing the stability, efficiency, and biocompatibility of these materials under different conditions. This review provides a comprehensive overview of the fundamental principles of smart luminescent materials, discusses recent innovations in their use for sensor applications, and explores future directions aimed at overcoming current limitations and expanding their capabilities in meeting the growing demand for rapid and cost-effective sensing solutions.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401328"},"PeriodicalIF":3.5,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142982177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 Stereocontrolled Synthesis of (+)-Febrifugine via Azide and Azide-Free Pathways. 通过叠氮化物和无叠氮化物途径立体控制合成(+)-Febrifugine。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-01-14 DOI: 10.1002/asia.202401579

Suwanan Uipanit, Kanyapat Lamyong, Sujitra Yakhampom, Boonsong Kongkathip, Paiboon Ngernmeesri, Nutthawat Chuanopparat

引用次数: 0