ChemistryOpen最新文献_第9页

Front Cover: (ChemistryOpen 5/2024) 封面：（ChemistryOpen 5/2024）

IF 2.3 4区化学

ChemistryOpen Pub Date : 2024-05-15 DOI: 10.1002/open.202480501

引用次数: 0

Amine Functionalization of Channels of Metal-Organic Frameworks for Effective Chemical Fixation of Carbon Dioxide: A Comparative Study with Three Newly Designed Porous Networks 胺官能化金属有机框架通道以实现二氧化碳的有效化学固定：与三种新设计多孔网络的比较研究。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-05-13 DOI: 10.1002/open.202400110

Rajib Moi, Swati Bedi, Prof. Kumar Biradha

{"title":"Amine Functionalization of Channels of Metal-Organic Frameworks for Effective Chemical Fixation of Carbon Dioxide: A Comparative Study with Three Newly Designed Porous Networks","authors":"Rajib Moi, Swati Bedi, Prof. Kumar Biradha","doi":"10.1002/open.202400110","DOIUrl":"10.1002/open.202400110","url":null,"abstract":"Catalytic transformation of CO2 into value-added chemical products can provide an appropriate solution for the raising environmental issues. To date, various metal-organic frameworks (MOFs) with transition metal ions have been explored for CO2 capture and conversion, but alkaline earth metal-based MOFs are comparatively less studied. Metal ions like Sr(II) having relatively large radius give rise to a high coordination number resulting in higher stability of the MOFs. Moreover, the introduction of N-rich functional group in organic linker like −NH2, −CONH− and triazole into MOF backbone enhance their CO2 capture and conversion efficiency. Herein, the effect of amine group on the catalytic efficiency of MOFs for CO2 cycloaddition with epoxides under solvent free and ambient conditions are presented. The di-carboxylates, such as 5-aminoisophthalate (AmIP) and 5-bromoisophthalate (BrIP) were utilized to synthesize Sr(II) based MOFs. The Zn(II) MOF was synthesized using tetra-carboxylate containing amide spacer (OAT) and 4-amino-4H-1,2,4-triazole (AMT). All three MOFs exhibited porous networks with guest available volume ranging from 15 to 58 %. The catalytic efficiency of the MOFs towards carbon dioxide fixation reaction was explored. The catalytic performances revealed that the presence of amine group in the channels enhances the catalytic efficiency of the MOFs.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/open.202400110","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140911016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Base-Filling in Double-Helical Nucleic Acids 双螺旋核酸中的碱基填充

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-05-06 DOI: 10.1002/open.202400088

Mark Nana Kwame Afari, Tuomas Lönnberg

引用次数: 0

DFT and TD-DFT Studies of D-π-A Organic Dye Molecules with Different Spacers for highly Efficient Reliable Dye Sensitized Solar Cells 使用不同间隔物的 D-π-A 有机染料分子的 DFT 和 TD-DFT 研究，用于高效可靠的染料敏化太阳能电池

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-05-03 DOI: 10.1002/open.202300307

Nambury Surendra Babu, Maluak Paul Kuot Malang, Ismail Abubakari

引用次数: 0

Unlocking the Fluorine-Free Buoy Effect: Surface-Enriched Ruthenium Polypyridine Complexes in Ionic Liquids 揭示无氟浮标效应：离子液体中的表面富集多吡啶钌配合物

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-04-30 DOI: 10.1002/open.202400092

Luciano Sanchez Merlinsky, Daniel Hemmeter, Prof. Dr. Luis M. Baraldo, Dr. Florian Maier, Prof. Dr. Hans-Peter Steinrück, Prof. Dr. Federico J. Williams

{"title":"Unlocking the Fluorine-Free Buoy Effect: Surface-Enriched Ruthenium Polypyridine Complexes in Ionic Liquids","authors":"Luciano Sanchez Merlinsky, Daniel Hemmeter, Prof. Dr. Luis M. Baraldo, Dr. Florian Maier, Prof. Dr. Hans-Peter Steinrück, Prof. Dr. Federico J. Williams","doi":"10.1002/open.202400092","DOIUrl":"10.1002/open.202400092","url":null,"abstract":"Controlling the local concentration of metal complexes at the surface of ionic liquids (ILs) is a highly sought-after objective due to its pivotal implications in supported ionic liquid phase (SILP) catalysis. Equally important is to avoid per- and polyfluorinated substances due to environmental concerns. Herein, we investigate the surface enrichment of Ru polypyridyl complexes with fluorine-free alkylic side groups of varying lengths and shapes, using the hydrophilic IL [C2C1Im][OAc] as solvent. Additional charged carboxylate groups are included into the polypyridyl ligands to increase the solubility of the complex in the IL. When the ligand system is functionalized with long and hydrophobic alkyl side chains, the complex predominantly localizes at the IL/vacuum interface, as deduced from angle-resolved X-ray photoelectron spectroscopy. Conversely, in the presence of short or more bulky substituents, no surface enrichment is observed. This buoy-like behaviour with fluorine-free side groups is explored for 0.05 %mol to 1 %mol solutions. Intriguingly, surface saturation occurs at approximately 0.5 %mol, which is beneficial to the efficient operation of catalytic systems featuring high surface areas, such as SILP catalysts.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/open.202400092","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140829390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Design and Synthesis of Polyheterocyclic Compounds Containing Pyrazolopyridopyrimidine Nucleus with Antimicrobial Activities 具有抗菌活性的含吡唑并吡啶嘧啶核的多杂环化合物的设计与合成

IF 2.3 4区化学

ChemistryOpen Pub Date : 2024-04-29 DOI: 10.1002/open.202400070

Farag A. El-Essawy, Mohammad Ahmad Ahmad Odah

引用次数: 0

3D Printing of TPU-Liquid Metal Composite Inks for the Preparation of Flexible Sensing Electronics 用于制备柔性传感电子元件的热塑性聚氨酯-液态金属复合油墨的三维打印技术。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-04-26 DOI: 10.1002/open.202300301

Dr. Shuting Liang, Dr. Mengjun Huang, Dr. Dabo Jiang, Dr. Jianyang Chen, Prof. Liang Hu, Mr. Jiujia Chen, Mr. Zhezi Wang

{"title":"3D Printing of TPU-Liquid Metal Composite Inks for the Preparation of Flexible Sensing Electronics","authors":"Dr. Shuting Liang, Dr. Mengjun Huang, Dr. Dabo Jiang, Dr. Jianyang Chen, Prof. Liang Hu, Mr. Jiujia Chen, Mr. Zhezi Wang","doi":"10.1002/open.202300301","DOIUrl":"10.1002/open.202300301","url":null,"abstract":"Direct 3D printing of liquid metal is difficult to form and easy to destroy. In this paper, we developed a 3D printed composite material consisting of a thermoplastic polyurethane (TPU) matrix and liquid metal (LM) dispersed droplets, and introduced the method for realizing 3D printed devices with this composite material: First, the LM is added to 10~50wt %TPU at 190~200 °C through ultrasonic blending to prepare blended ink. After solid cooling, the LM-TPU composite fiber with a diameter of 600 μm was prepared by Wellzoom desktop extruder at 190 °C at an extrusion speed of 400 mm/min. It has excellent elasticity, with a tensile limit of 0.637 N/m2, and the TPU could evenly wrap LM droplets. Finally, the LM-TPU fiber is 3D printed at 240 °C by using a 3D printer, and 2D/3D flexible electronic devices with heating and conductive functions could be prepared. The microcircuit has good electrical conductivity; after adding voltage, the circuit has heat release; it could be used as heating equipment to keep warm and used in various flexible wearable electronic products.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/open.202300301","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140652490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Relevant Developments in the Use of Three-Component Reactions for the Total Synthesis of Natural Products. The last 15 Years 利用三组分反应进行天然产物全合成的相关进展。过去 15 年

IF 2.3 4区化学

ChemistryOpen Pub Date : 2024-04-22 DOI: 10.1002/open.202300306

Prof. Enrique L. Larghi, Dr. Andrea B. J. Bracca, Dr. Sebastian O. Simonetti, Prof. Teodoro S. Kaufman

引用次数: 0

In Situ Fabrication of Silver Nanoparticle-Decorated Polymeric Vesicles for Antibacterial Applications 用于抗菌应用的银纳米粒子装饰聚合物囊泡的原位制备技术

IF 2.3 4区化学

ChemistryOpen Pub Date : 2024-04-22 DOI: 10.1002/open.202300223

Fen Zhang, Qian Yao, Yanling Niu, Xiaoqi Chen, Haijun Zhou, Lu Bai, Zejuan Kong, Yantao Li, Hua Cheng

{"title":"In Situ Fabrication of Silver Nanoparticle-Decorated Polymeric Vesicles for Antibacterial Applications","authors":"Fen Zhang, Qian Yao, Yanling Niu, Xiaoqi Chen, Haijun Zhou, Lu Bai, Zejuan Kong, Yantao Li, Hua Cheng","doi":"10.1002/open.202300223","DOIUrl":"10.1002/open.202300223","url":null,"abstract":"Silver/polymeric vesicle composite nanoparticles with good antibacterial properties were fabricated in this study. Silver nanoparticles (AgNPs) were prepared in situ on cross-linked vesicle membranes through the reduction of silver nitrate (AgNO3) using polyvinylpyrrolidone (PVP) via coordination bonding between the Ag+ ions and the nitrogen atoms on the vesicles. X-ray diffraction (XRD), ultraviolet-visible spectroscopy (UV-vis), and transmission electron microscopy (TEM) analyses confirmed the formation of AgNPs on the vesicles. The antibacterial test demonstrated good antibacterial activity against both Gram-negative bacteria (Escherichia coli) and Gram-positive bacteria (Staphylococcus aureus) for the produced AgNP-decorated vesicles. The minimum inhibitory concentration (MIC) values of the AgNP-decorated vesicles for E. coli and S. aureus were 8.4 and 9.6 μg/mL, respectively. Cell viability analysis on the A549 cells indicated that the toxicity was low when the AgNP concentrations did not exceed the MIC values, and the wound healing test confirmed the good antibacterial properties of the AgNP-decorated vesicles.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/open.202300223","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140635850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Comparative Study of Catalytic Activity of Recyclable Au/Fe3O4 Microparticles for Reduction Of 2,4-Dinitrophenol and Anionic, Cationic Azo Dyes. 可回收金/Fe3O4 微颗粒还原 2,4-二硝基苯酚和阴离子、阳离子偶氮染料催化活性的比较研究

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-04-16 DOI: 10.1002/open.202300297

MSc. Ikhbayar Batsukh, Assoc. Prof. Tegshjargal Khishigjargal, Uuriintuya Dembereldorj, Assoc. Prof. Munkhtsetseg Sambuu, Assoc. Prof. Erdene-Ochir Ganbold, Assoc. Prof. Erdene Norov

{"title":"Comparative Study of Catalytic Activity of Recyclable Au/Fe3O4 Microparticles for Reduction Of 2,4-Dinitrophenol and Anionic, Cationic Azo Dyes.","authors":"MSc. Ikhbayar Batsukh, Assoc. Prof. Tegshjargal Khishigjargal, Uuriintuya Dembereldorj, Assoc. Prof. Munkhtsetseg Sambuu, Assoc. Prof. Erdene-Ochir Ganbold, Assoc. Prof. Erdene Norov","doi":"10.1002/open.202300297","DOIUrl":"10.1002/open.202300297","url":null,"abstract":"We synthesized Au/Fe3O4 microparticles. Initially, citrate-capped Fe3O4 micro-sized particles were synthesized by the co-precipitation method with an excess amount of trisodium citrate. Gold ions were reduced on the surface of citrate-capped Fe3O4 and grew as gold sub-microparticles with an average diameter of 210 nm on the surface. The characteristic SPR peak of gold nanoparticles on the surface of Fe3O4 was detected at 584 nm, whereas the absorption in the near-infrared region was increased. SEM images has proved that the synthesized Au/Fe3O4 composite microparticles has an average diameter of 1.7 micrometers. The results of XRD patterns proved the existence of both crystal phases of Fe3O4 and Au particles. To investigate the catalytic activity, the reaction rate constant of reduction of 2,4-dinitrophenol (2,4-DNP) and degradation of Congo red (CR), and methylene blue (MB) with NaBH4 in the presence of Au/Fe3O4 catalyst was monitored by UV-Vis spectroscopy. The initial reaction rate constant calculated from the change in characteristic peak absorptions of 2,4-dinitrophenol was 3.97×10−3 s−1, while the reaction rate constants for the degradation of CR and MB were 9.72×10−3 s−1 and 14.25×10−3 s−1 respectively. After 5 cycles, Au/Fe3O4 microparticles preserved 99 % of the reaction rate constant, exhibiting considerable recycling efficiency in the reduction of nitro groups.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/open.202300297","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140592125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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