ChemPlusChem最新文献_第9页

Synthesis, Spectroscopic and Electrochemical Characterization of Carbazole and Triphenylamine BOPHY Derivatives. Electrochemical Generation of an Optoelectronic Polymeric Film. 咔唑和三苯胺BOPHY衍生物的合成、光谱和电化学表征。光电聚合物薄膜的电化学生成。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-03-14 DOI: 10.1002/cplu.202500051

Melisa Renfige, Jhair C Leon Jaramillo, Andres Calosso, Claudia Solis, Javier Durantini, Luis A Otero, Silvestre Bongiovanni Abel, Yohana B Palacios, Edwin J Gonzalez Lopez, Edgardo N Durantini, Daniel A Heredia, Miguel A Gervaldo

{"title":"Synthesis, Spectroscopic and Electrochemical Characterization of Carbazole and Triphenylamine BOPHY Derivatives. Electrochemical Generation of an Optoelectronic Polymeric Film.","authors":"Melisa Renfige, Jhair C Leon Jaramillo, Andres Calosso, Claudia Solis, Javier Durantini, Luis A Otero, Silvestre Bongiovanni Abel, Yohana B Palacios, Edwin J Gonzalez Lopez, Edgardo N Durantini, Daniel A Heredia, Miguel A Gervaldo","doi":"10.1002/cplu.202500051","DOIUrl":"10.1002/cplu.202500051","url":null,"abstract":"In this study, two new BOPHY-based derivatives were efficiently synthesized with high yields and characterized by using spectroscopic, electrochemical, and spectroelectrochemical techniques. The introduction of non-conjugated (carbazole (CBZ)) and conjugated (triphenylamine (TPA)) donor groups into the BOPHY macrocycle imparted different electrochemical and spectroscopic properties. Oxidation of BP-2CBZ led to the formation of unstable CBZ radical cations, which further reacted to generate dicarbazole (DCBZ) units, allowing the formation of a polymeric film during anodic cycling. In contrast, BP-2TPA exhibited a reversible oxidation process, generating stable BOPHY and TPA radical cations which inhibited the polymerization process. Spectroscopic differences were also observed, with BP-2CBZ displaying a high fluorescence quantum yield (Φf), while BP-2TPA emission was nearly quenched, exhibiting solvent-dependent fluorescence with a large Stokes shift (~160 nm). BP-2TPA also demonstrated aggregation-induced emission (AIE) properties, showing an increase in fluorescence intensity of around 12 times when the water content changes from 0 to 90 %. These experimental findings were further corroborated by DFT and TDDFT calculations. The BP-2CBZ polymer presented electrochromic properties, showing color changes upon oxidation. This work represents the first report of a BOPHY-based polymer synthesized through electrochemical methods.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202500051"},"PeriodicalIF":3.0,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622935","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

How an External Electric Field Makes Nitrous Oxide (N₂O) a Potent Oxidizing Agent. 外电场如何使N2O成为强氧化剂。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-03-13 DOI: 10.1002/cplu.202500029

Vishva Jeet Anand, Pradeep Kumar

引用次数: 0

Single-Atom Catalysts Boosted Electrochemiluminescence. 单原子催化剂促进电化学发光。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-03-12 DOI: 10.1002/cplu.202400767

Dan-Ling Wang, Wei Zhao

{"title":"Single-Atom Catalysts Boosted Electrochemiluminescence.","authors":"Dan-Ling Wang, Wei Zhao","doi":"10.1002/cplu.202400767","DOIUrl":"10.1002/cplu.202400767","url":null,"abstract":"Electrochemiluminescence (ECL) combines electrochemical redox processes with photochemical light emission, offering exceptional sensitivity, spatial control, and stability. Widely applied in biosensing, medical diagnostics, and environmental monitoring, its efficiency often depends on advanced catalytic materials. Single-atom catalysts (SACs), featuring isolated metal atoms dispersed on a support, have emerged as promising candidates due to their unique electronic structures, high atom utilization, and tunable catalytic properties. These features enable SACs to improve reaction kinetics, enhance light-emitting efficiency, and provide precise control over the generation of excited-state species essential for ECL. This review highlights recent advancements in SACs-boosted ECL systems, with a focus on their reaction mechanisms, design strategies, and roles in improving electrocatalytic and luminescent performance. Additionally, it summarizes the applications of SACs-boosted ECL in bioanalysis, environmental monitoring, and single-particle imaging. By highlighting the synergies between single-atom catalysis and ECL, this work aims to provide a comprehensive overview of the field and a roadmap for future research, paving the way for innovative applications in analytical and sensing technologies.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400767"},"PeriodicalIF":3.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612981","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

Organocatalyzed Diels-Alder Reactions: Unexplored Hydrogen Bond Donor Catalysts. 有机催化diols - alder反应：未开发的氢键供体催化剂。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-03-12 DOI: 10.1002/cplu.202500081

Eveline H Tiekink, Ron Verdijk, Trevor A Hamlin, F Matthias Bickelhaupt

引用次数: 0

Investigating the Degradation of Historical Man-Made Cellulose-Derived Textiles via Accelerated Ageing. 历史人造纤维素衍生纺织品的加速老化降解研究。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-03-12 DOI: 10.1002/cplu.202500025

Louise Garner, Simoní Da Ros, Katherine Curran

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Extensive Fragmentation, Atom Transfer, H loss and Cross-linking Induced by Single Collisions between Carbon Ions and Protonated Antibiotics in the Gas Phase. 碳离子与质子化抗生素在气相中单次碰撞引起的广泛碎片化、原子转移、H损失和交联。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-03-12 DOI: 10.1002/cplu.202500008

Min Liu, Alain Méry, Violaine Vizcaino, Jimmy Rangama, Thomas Schlathölter, Jean-Christophe Poully

{"title":"Extensive Fragmentation, Atom Transfer, H loss and Cross-linking Induced by Single Collisions between Carbon Ions and Protonated Antibiotics in the Gas Phase.","authors":"Min Liu, Alain Méry, Violaine Vizcaino, Jimmy Rangama, Thomas Schlathölter, Jean-Christophe Poully","doi":"10.1002/cplu.202500008","DOIUrl":"10.1002/cplu.202500008","url":null,"abstract":"The direct effects of ionizing radiation on antibiotics are largely unknown. Here, we report mass spectra of the cationic products of the irradiation of three antibiotics by carbon ions at 10.4 MeV kinetic energy. Carbon ion beams used in cancer treatments have this energy when they deliver the maximum dose to malignant cells. We find that upon single carbon ion collision, extensive fragmentation of antibiotics occurs, predominantly through channels similar to those observed in soft X-ray photoabsorption. However, new product ions are also detected and attributed to the ability of MeV carbon ions to eject electrons from the molecular target in an unspecific manner. Proton transfer appears to play a key role in the dissociation dynamics of rifamycin and actinomycin, and it is complemented by sodium transfer in sodiated rifamycin and its dimer. Importantly, we report the first evidence for abundant loss of H from precursor ions, as well as for intramolecular cross-linking triggered by carbon ion collision. All these processes most probably take place in the vibrationally hot electronic ground state of the molecular system.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202500008"},"PeriodicalIF":3.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143603010","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

Giant Polyoxometalate {W₇₂Fe₃₀} into Pure Inorganic Gel and Xerogel: Rheology and Proton Conduction. 巨聚金属氧酸盐{W72Fe30}制备纯无机凝胶和干凝胶：流变学和质子传导。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-03-11 DOI: 10.1002/cplu.202500084

Hema Kumari Kolli, Debu Jana, Mylapalli Praveen Kumar, Samar K Das

{"title":"Giant Polyoxometalate {W72Fe30} into Pure Inorganic Gel and Xerogel: Rheology and Proton Conduction.","authors":"Hema Kumari Kolli, Debu Jana, Mylapalli Praveen Kumar, Samar K Das","doi":"10.1002/cplu.202500084","DOIUrl":"10.1002/cplu.202500084","url":null,"abstract":"Polyoxometalate (POM) gel is well-known but mostly with organic molecules. Pure inorganic POM gel, that is, a combination of a \"POM anion and a metal cation,\" is hardly known and unexplored area of materials research. When an aqueous solution of sodium tungstate is mixed with an aqueous solution of ferric chloride, the resulting suspension forms a straw-color hydrogel. The behavior of this hydrogel {W72Fe30}HG has been studied by performing rheology studies. Dehydration of hydrogel at room temperature brings about the corresponding xerogel, characterization of which confirms that the xerogel is a {W72Fe30} type giant Keplerate-based POM compound [Fe(H2O)6]14[W72Fe30O252(H2O)72(OH)60]·166H2O ({W72Fe30}XG) and the basic building unit of the gel is {W72Fe30} cluster. The xerogel is macroporous material characterized with 60 hydroxyl groups per formula unit and these hydroxyl groups are acidic in nature. Interestingly, the title xerogel {W72Fe30}XG, which is nothing but an inorganic acid and an inexpensive metal-oxide-based material, exhibits proton conduction in its solid state. The xerogel material shows super proton conductivity of 1.71 × 10-2 S cm-1 at 80 °C and 98% relative humidity with an activation energy (Ea) of 0.18 eV.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e2500084"},"PeriodicalIF":3.0,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143603013","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

Synthesis and Crystal Structures of β-Diketonate-Associated Aluminum Complexes as Potential Catalysts for the Ring-Opening Polymerization of ε-Caprolactone. β -二酮酮缔合铝配合物作为ε-己内酯开环聚合潜在催化剂的合成及晶体结构

IF 3 4区化学

ChemPlusChem Pub Date : 2025-03-11 DOI: 10.1002/cplu.202400716

Himanshi Sharma, Chayan Pandya, Logesh Mathivathanan, Arup Sinha, Akella Sivaramakrishna, Madhvesh Pathak

{"title":"Synthesis and Crystal Structures of β-Diketonate-Associated Aluminum Complexes as Potential Catalysts for the Ring-Opening Polymerization of ε-Caprolactone.","authors":"Himanshi Sharma, Chayan Pandya, Logesh Mathivathanan, Arup Sinha, Akella Sivaramakrishna, Madhvesh Pathak","doi":"10.1002/cplu.202400716","DOIUrl":"10.1002/cplu.202400716","url":null,"abstract":"A couple of novel crystalline aluminum(III) derivatives containing tridentate Schiff base ligand (HL) and β-diketones (acetylacetone = acac, benzoylacetone = bnzac, and dibenzoylmethane = dbnz), namely, [Al(L)bnzac] [Al1], [Al(L)dnbz] [Al2], and [Al(L)acac] [Al3], are synthesized and characterized using different spectroscopic techniques and elemental analysis. Single crystal X-ray diffraction analysis of Al2 and Al3 exhibits hexacoordinated geometry around aluminum center atom which is also confirmed using density functional theory (DFT). The ring-opening polymerization (ROP) of caprolactone is evaluated to determine the catalytic potential of the complexes Al1-Al3 in the absence and presence of benzyl alcohol (BnOH). The effect of time and temperature is also examined and found that lesser steric effects of the ancillary ligand causes a higher polymerization rate. Gel permeation chromatography (GPC) is used to determine the molecular weight (Mn & Mw) and dispersity (Đ) values of polycaprolactone. Within first 2 h, Al3 exhibits excellent catalytic activity with 99% conversion at 110 °C (MnGPC = 1948 gmol-1, MwGPC = 2865 gmol-1, and Đ = 1.47). An end-group study is performed using matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) spectrometry, and 1H NMR spectral analysis. Also, PCL is characterized using elemental, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) analyses. First-order kinetics are found in the monomer aligned with the activated monomer mechanism for the catalysts.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e2400716"},"PeriodicalIF":3.0,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602994","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

Unveiling Correlations in Metal-Organic Interface Properties: A Computational Exploration of Alternant and Non-Alternant π-Electron Systems. 揭示金属-有机界面性质的相关性——交替和非交替π-电子系统的计算探索。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-03-10 DOI: 10.1002/cplu.202400771

Jakob Schramm, Ralf Tonner-Zech

{"title":"Unveiling Correlations in Metal-Organic Interface Properties: A Computational Exploration of Alternant and Non-Alternant π-Electron Systems.","authors":"Jakob Schramm, Ralf Tonner-Zech","doi":"10.1002/cplu.202400771","DOIUrl":"10.1002/cplu.202400771","url":null,"abstract":"Metal-organic interfaces are critical in organic electronic devices, influencing key performance properties. Understanding these relationships is essential for improving such devices. Polycyclic conjugated hydrocarbons (PCHs) with alternant and non-alternant topologies are promising candidates for exploring these interfaces since they show physisorption and chemisorption, respectively. Using density functional theory with periodic boundary conditions, we modeled the interfaces between a Cu(111) surface and 22 PCHs (11 alternant and 11 non-alternant). We identified quantitative correlations among interface properties, showing that these properties form a \"fixed set\" of properties for individual molecules. A clear distinction emerges between physisorption and chemisorption for most properties, except for work function changes, which are consistently governed by the Pauli pushback effect resulting from dispersion pull. Interestingly, molecules with larger π-electron systems exhibit stronger dispersion attraction yet higher adsorption heights. This study provides chemically intuitive explanations for these findings and highlights the interconnected nature of interface properties. The insights gained offer valuable guidance for understanding and optimizing Cu(111)-organic interfaces, contributing to advancements in organic electronics.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400771"},"PeriodicalIF":3.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143596024","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

Pre-industrial Use of Bauxite by Late Gothic Goldsmith Masters: Analytical Evidence and Experimental Study. 晚期哥特金匠大师对铝土矿的工业化前使用：分析证据和实验研究。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-03-10 DOI: 10.1002/cplu.202500044

David Hradil, Janka Hradilová, Petr Bezdička, Ivan Razum

{"title":"Pre-industrial Use of Bauxite by Late Gothic Goldsmith Masters: Analytical Evidence and Experimental Study.","authors":"David Hradil, Janka Hradilová, Petr Bezdička, Ivan Razum","doi":"10.1002/cplu.202500044","DOIUrl":"10.1002/cplu.202500044","url":null,"abstract":"The turn of the 15th and the 16th century was marked by turmoil including invasion of the Turks in the Balkans. Consequently, trade routes to the Mediterranean were disrupted, resulting in sudden demand for alternative sources of imported materials. For example, direct import of potassium alum had been gradually replaced by its local production from alunite, alum schists or grey pyritic bauxite. It has now been proven that concurrently extracted red bauxite had been used as a substitute for imported high-quality red clay, the so-called Armenian bole, employed by Central European painting workshops in the preparations for gilding (\"poliments\"). Importantly, connection with the documented mining of grey bauxite in Croatian Minjera was evidenced by unique finding of diaspore together with dominant boehmite. Mineralogical analyses were performed by X-ray powder micro-diffraction and reference bauxites from Istria and Balkan Peninsula were used to evaluate their technological suitability for gilding. As it was found that the earliest appearance of boehmite in poliment dates back to 1470, the beginning of bauxite mining in Europe is shifted to the period shortly after the fall of Constantinople in 1453, and it also represents the oldest known evidence of the use of bauxite raw material in technology.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202500044"},"PeriodicalIF":3.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143596021","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