ChemPlusChem最新文献_第2页

Cyrene Dimethyl Acetal: Potential Alternative Solvent for Pd-Catalyzed Homogeneous Aminocarbonylation of Iodo(hetero)arene Compounds. 苯二甲基缩醛：pd催化碘（杂）芳烃化合物均相氨基羰基化的潜在替代溶剂。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2026-05-01 DOI: 10.1002/cplu.70162

Attila Takács, Nuray Uzunlu Ince, Zoltán Medgyesi, Huda Hamed, László Kollár, Bence Mihalovics, László T Mika

引用次数: 0

Hydrogen-Bond-Driven Molecular Recognition: A UV-Spectroscopic Strategy for Positional Isomer Discrimination Using (4,5-Diphenyl-1H-Imidazol-2-Yl) Aniline and Picric Acid 氢键驱动的分子识别：使用（4,5-二苯基- 1h -咪唑-2-酰基）苯胺和苦味酸进行位置异构体识别的紫外光谱策略。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2026-04-13 DOI: 10.1002/cplu.202500606

Hemanathan Elango, Shyam Ganesh, Adithya Prabhakaran, Abhijit Saha

引用次数: 0

Green Synthesis of ZrO2 Nanoparticles from Cynodon dactylon: Structural Characterization, Antioxidant Performance, and Corrosion Inhibition of Mild Steel 绿色合成纳米ZrO2：结构表征、抗氧化性能及对低碳钢的缓蚀作用。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2026-04-05 DOI: 10.1002/cplu.202600006

Shobhit Sharma, Ruchi Bharti, Renu Sharma

{"title":"Green Synthesis of ZrO2 Nanoparticles from Cynodon dactylon: Structural Characterization, Antioxidant Performance, and Corrosion Inhibition of Mild Steel","authors":"Shobhit Sharma, Ruchi Bharti, Renu Sharma","doi":"10.1002/cplu.202600006","DOIUrl":"10.1002/cplu.202600006","url":null,"abstract":"Zirconia (ZrO2) nanoparticles (NPs) were biosynthesized using Cynodon dactylon leaf extract via an environmentally benign route and evaluated for antioxidant activity and corrosion protection of mild steel in acidic media. X-ray diffraction confirmed nanocrystalline tetragonal ZrO2, while Fourier transform infrared spectroscopy evidenced phytochemical functionalities that cap and stabilize the particle surface. Scanning electron microscope and transmission electron microscopy revealed agglomerated morphologies composed of nanoscale primary particles; consistent with this, dynamic light scattering showed micrometer-scale hydrodynamic diameters arising from aqueous aggregation. NP formation and aggregation were strongly governed by alkaline pH, reaction time, temperature, and extract concentration, which collectively modulate nucleation, growth, and surface stabilization. Electrochemical and gravimetric assessments (potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and weight loss) demonstrated dose-dependent inhibition, achieving a maximum protection efficiency of 82.5%. EIS responses showed enlarged Nyquist semicircles and increased charge transfer resistance, indicating development of a compact barrier layer on steel. Weight-loss measurements yielded inhibition efficiencies of ∼23.5% after 24 h and ∼64.7% after 48 h. Antioxidant performance of C. dactylon extracts was quantified using 2,2-diphenyl-1-picrylhydrazyl and 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assays, with methanolic extracts exhibiting the highest radical-scavenging activity. Collectively, these results establish C. dactylon-derived ZrO2 as multifunctional nanoadditives with coupled antioxidant and mixed-type anticorrosive behavior supported by adsorption-based mechanistic interpretation. This integrated study connects synthesis optimization to corrosion and antioxidant performance.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 4","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Modification of Mechanical and Functional Properties of Titania Nanotubes Using [Pt2(6NNqui)Cl4] Complex Bonded Covalently via Bridging Ligand 桥接配体修饰[Pt2(6NNqui)Cl4]配合物对二氧化钛纳米管力学和功能性能的影响

IF 2.8 4区化学

ChemPlusChem Pub Date : 2026-04-05 DOI: 10.1002/cplu.202500716

Marlena Grodzicka, Adrian Topolski

{"title":"Modification of Mechanical and Functional Properties of Titania Nanotubes Using [Pt2(6NNqui)Cl4] Complex Bonded Covalently via Bridging Ligand","authors":"Marlena Grodzicka, Adrian Topolski","doi":"10.1002/cplu.202500716","DOIUrl":"10.1002/cplu.202500716","url":null,"abstract":"Titanium alloys are basic materials used in implantology. Their properties can be modified in many ways, e.g., by morphological changes or covering with different bioactive molecules. Platinum(II) complexes are a significant group of anticancer drugs. In an organism, they undergo many chemical processes. A ligand substitution with the S-donor ligands (glutathione (GSH), metallothioneins) is among the most important. This process can be applied to the modification of titanium alloys (Ti6Al4V) with platinum(II) complexes, e.g., [Pt2(6NNqui)Cl4] (PtQ6). The paper presents a modification of the Ti6Al4V alloy with titania nanotubes and the studied complex, using the bridging ligand (3-mercaptopropyl)triethoxysilane (MPTES). Moreover, a kinetic study on chloride substitution in the studied bimetallic cisplatin analogue (PtQ6) by L-cysteine, an amino acid that is a part of GSH and metallothioneins, is also presented. It is a good way to get locally active implants in the targeted anticancer therapy. The produced material is characterized with spectral and microscopic methods, including XPS (X-ray photoelectron spectroscopy). The mechanism of the substrate modification with platinum(II) complex is based on the substitution process. The nanomechanical properties of the modified and functionalized substrate are also tested in the indentation tests.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 4","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Molecular Photogearing for Controlling Rotary Motion at the Nanoscale 在纳米尺度上控制旋转运动的分子光聚焦。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2026-04-05 DOI: 10.1002/cplu.202500742

Enrique M. Arpa, Bo Durbeej

引用次数: 0

Photocatalytic Decarboxylative Oxygenation of Unactivated Carboxylic Acids: A Review of Direct C–O Bond Formation 非活化羧酸的光催化脱羧氧化：直接形成C-O键的研究进展。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2026-04-05 DOI: 10.1002/cplu.202600002

Shenpeng Tan, Aorou Song, Ruiyun Liu, Zhaoxia Zhong, Ruochen Zhang, Feng Li

{"title":"Photocatalytic Decarboxylative Oxygenation of Unactivated Carboxylic Acids: A Review of Direct C–O Bond Formation","authors":"Shenpeng Tan, Aorou Song, Ruiyun Liu, Zhaoxia Zhong, Ruochen Zhang, Feng Li","doi":"10.1002/cplu.202600002","DOIUrl":"10.1002/cplu.202600002","url":null,"abstract":"Photocatalytic decarboxylative oxygenation enables the construction of C–O bonds from carboxylic acids, which are versatile and sustainable precursors. This approach is characterized by mild reaction conditions, excellent functional group tolerance, and operational simplicity. This review systematically summarizes recent advances in photocatalytic decarboxylative oxygenation reactions, with a focus on methodologies that employ unactivated free carboxylic acids as radical precursors. We discuss a wide range of catalytic systems, including homogeneous transition-metal complexes (e.g., Ru, Ir, Fe, Cu, and Ce), metal-free organic photocatalysts, and heterogeneous carbon nitride materials, emphasizing their mechanisms and synthetic applications. The review also highlights emerging strategies such as ligand-to-metal charge transfer activation and photobiocatalytic cascades. Finally, we outline current challenges and future directions, including substrate scope expansion, selectivity control, mechanistic elucidation, and process scalability, underscoring the potential of this transformation in pharmaceutical synthesis, peptide modification, and sustainable molecular editing.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 4","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Cerulean Blue in Historical Paintings: Magnesium Identification and Pigment Replication 历史绘画中的天蓝色：镁的鉴定和颜料的复制。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2026-04-05 DOI: 10.1002/cplu.202500062

Václava Antušková, Jana Luxová, Radka Šefců, Žaneta Dohnalová, Petra Šulcová, Ivana Turková, Marek Kotrlý

{"title":"Cerulean Blue in Historical Paintings: Magnesium Identification and Pigment Replication","authors":"Václava Antušková, Jana Luxová, Radka Šefců, Žaneta Dohnalová, Petra Šulcová, Ivana Turková, Marek Kotrlý","doi":"10.1002/cplu.202500062","DOIUrl":"10.1002/cplu.202500062","url":null,"abstract":"Cerulean blue is a pigment that was introduced to the art market at the turn of the 1850s and 1860s, with its composition stated as CoSnO3. For this project, the pigment was synthesised using historical recipes and analysed. The investigation involved examining various conditions for its preparation, such as different reactants, solution concentrations, precipitate ageing times, firing temperatures and calcination times. All of the samples obtained were green in colour, and their composition was defined as a mixture of SnO2 and Co2SnO4. To gain a more accurate understanding of pigment composition, historical paint samples and commercially available pigments were analysed. These pigments were found to contain a relatively high amount of magnesium, so new pigment samples were prepared with added magnesium. The obtained samples have the desired blue colour; their composition is Mg2-xCoxSnO4 and SnO2. Using K2SnO3·3H2O as a reactant produced more reproducible results than using SnCl4·5H2O. The reconstruction of pigment production methods revealed gaps in historical recipes. The collected data allowed us to specify the composition of cerulean blue pigment as Mg2-xCoxSnO4 with a variable amount of SnO2.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 4","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

From Yellow to Red: Emission Tuning of Benzothioxanthene Imides Through Selective Multi-Arylamine Functionalization 从黄色到红色：通过选择性多芳胺功能化的苯并噻吩酰亚胺的发射调谐。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2026-04-05 DOI: 10.1002/cplu.70135

Tatiana Ghanem, Nathan Plassais, Akpeko Gasonoo, Jung Hwa Seo, Bright Walker, Philippe Blanchard, Cyrille Monnereau, Dominik Lungerich, Arthur H. G. David, Gregory C. Welch, Clément Cabanetos

{"title":"From Yellow to Red: Emission Tuning of Benzothioxanthene Imides Through Selective Multi-Arylamine Functionalization","authors":"Tatiana Ghanem, Nathan Plassais, Akpeko Gasonoo, Jung Hwa Seo, Bright Walker, Philippe Blanchard, Cyrille Monnereau, Dominik Lungerich, Arthur H. G. David, Gregory C. Welch, Clément Cabanetos","doi":"10.1002/cplu.70135","DOIUrl":"10.1002/cplu.70135","url":null,"abstract":"The selective bis- and tris-functionalization of benzothioxanthene imides (BTI) with extended triphenylamine (eTPA) units, enabling precise tuning of optical and electronic properties, is introduced herein. Controlled bromination and subsequent Suzuki–Miyaura cross-coupling allow modular introduction of donor groups, resulting in redshifted emission into the red–near-infrared (NIR) region with large Stokes shifts and fluorescence quantum yield strongly modulated by solvent polarity and molecular environment. Photoemission measurements reveal HOMO stabilization upon addition of the third eTPA, illustrating the impact of subtle structural modifications on frontier orbital energies in the solid state. Both derivatives exhibit excellent film-forming and solvent-resistance properties, enabling, as an early proof of concept, their incorporation as emissive guests in solution-processed flexible organic light-emitting devices (OLEDs). Remarkably, while spectral variations were small, the third eTPA unit induces pronounced differences in device performance, illustrating how minimal and simple molecular modifications can deliver substantial functional gains.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 4","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147621194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Peculiarities of Mercuration-Iododemercuration of Propargyl Derivatives. 丙炔衍生物汞-碘还原的特性。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2026-04-01 DOI: 10.1002/cplu.202500577

Kristine Valerik Balyan, Lusine Aram Movsisyan, Haykanush Ruben Pogosyan, Mark Yura Danghyan, Astghik Artak Hovhannisyan, Hayk Aram Aghekyan, Hmayak Babken Sargsyan, Nina Garnik Hobosyan

{"title":"Peculiarities of Mercuration-Iododemercuration of Propargyl Derivatives.","authors":"Kristine Valerik Balyan, Lusine Aram Movsisyan, Haykanush Ruben Pogosyan, Mark Yura Danghyan, Astghik Artak Hovhannisyan, Hayk Aram Aghekyan, Hmayak Babken Sargsyan, Nina Garnik Hobosyan","doi":"10.1002/cplu.202500577","DOIUrl":"https://doi.org/10.1002/cplu.202500577","url":null,"abstract":"The mercuration-iododemercuration reactions of some propargyl systems were explored. In the presence of mercury (II) acetate, propargyl derivatives reacted facilely with iodine. These interactions proceeded by two possible pathways included corresponding bridged and linear organomercury intermediates. Short-chain alkyl propargyl ethers under mild conditions with mercury (II) acetate in an acetic acid (hexane or dichloromethane) medium with iodine resulted in a mixture of iodoalkyloxypropynes, diiodoalkyloxypropenyl acetates, diiodoalkyloxypropenes, and triiodoalkyloxypropenes. Acetoxymercuration-iododemercuration of the obtained reactive iodoalkynes occurred more rapidly than terminal alkynes. Hexyl, heptyl propargyl ethers studied reactions took place under heating, and the products were both unsaturated diiodoacetates and trans-monoiodoacetates in a mass ratio of approximately 1:1. Acetoxymercuration-iododemercuration of prop-2-yn-1-yl acetate in acetic acid at room temperature led to (E)-2,3-diiodoallyl acetate, diiododiacetate, and cis-, trans-monoiododiacetates. The researched reaction of propargyl alcohol in acetic acid at room temperature led to the mixture of triiodopropene and diiodopropene. The mercury (II) acetate-mediated iodination of 2-methylbut-3-yn-2-ol depends on the solvents nature and afforded corresponding mono-, di-, triiododerivatives. The mercuration-iododemercuration of 2-methylbut-3-yn-2-yl acetate in acetic acid at room temperature was special. This reaction result was the blend containing the product of triple bond indirect hydration and iodination of the methyl group, activated by the carbonyl.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 4","pages":"e202500577"},"PeriodicalIF":2.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147758203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Efficient Sulfonation of Syndiotactic Polystyrene Membranes Assessed by Small-Angle Neutron Scattering. 用小角中子散射评价聚苯乙烯膜的高效磺化。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2026-04-01 DOI: 10.1002/cplu.202500735

Aurel Radulescu, Hiroki Iwase, Shin-Ichi Takata

{"title":"Efficient Sulfonation of Syndiotactic Polystyrene Membranes Assessed by Small-Angle Neutron Scattering.","authors":"Aurel Radulescu, Hiroki Iwase, Shin-Ichi Takata","doi":"10.1002/cplu.202500735","DOIUrl":"10.1002/cplu.202500735","url":null,"abstract":"The selectivity of the δ-form of syndiotactic polystyrene (sPS) toward small organic molecules enables homogeneous functionalization by sulfonation of sPS membranes via soaking in a chloroform solution of a bulky sulfonating agent such as lauroyl sulfate. Sulfonated syndiotactic polystyrene (s-sPS) is hydrophilic and shows a high proton conductivity comparable to that of Nafion, which is the benchmark in proton-exchange membrane fuel cell technology. Therefore, s-sPS might represent a good candidate for the hydrocarbon alternative to the hazardous fluorinated compounds such as Nafion in various energy conversion applications. However, for optimal performance, functionalization should be efficient across the entire volume of the membrane. Here, we report on the evaluation of the efficiency of sulfonation of sPS membranes based on a semiquantitative analysis of data measured by small-angle neutron scattering on dry and hydrated samples. By exploiting the different response of neutrons from the same compound with different degrees of deuteration, various structural details were highlighted following in-beam hydration of functionalized membranes with H2O or D2O. Experimental analysis of the scattering data under different contrast conditions using the one-dimensional correlation function Γ1(x) provided evidence of homogeneous sulfonation of only the amorphous phase of the membranes, while the crystalline regions remained unaffected.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 4","pages":"e202500735"},"PeriodicalIF":2.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13090859/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147715366","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