ChemPlusChem最新文献_第10页

Multi-Peak Redox Strategy for Ultrasensitive Adsorptive Stripping Voltammetric Detection of 5-Hydroxyindole Acetic Acid on a Thermally Oxidized Graphite Felt 热氧化石墨毡超灵敏吸附溶出伏安法检测5-羟基吲哚乙酸的多峰氧化还原策略。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2025-11-24 DOI: 10.1002/cplu.202500521

Shuangyan Liu, Lei Wang, Zuoyao Wang, Jinyou Meng, Tingjie Liu, Yafei Hou, Hui Guo, Haomin Jiang

{"title":"Multi-Peak Redox Strategy for Ultrasensitive Adsorptive Stripping Voltammetric Detection of 5-Hydroxyindole Acetic Acid on a Thermally Oxidized Graphite Felt","authors":"Shuangyan Liu, Lei Wang, Zuoyao Wang, Jinyou Meng, Tingjie Liu, Yafei Hou, Hui Guo, Haomin Jiang","doi":"10.1002/cplu.202500521","DOIUrl":"10.1002/cplu.202500521","url":null,"abstract":"The precise determination of 5-hydroxyindole acetic acid (5-HIAA), an essential biomarker for neuroendocrine tumors and neurological diseases, is of paramount importance. Herein, we develop a sensitive electrochemical sensor based on an oxidized graphite felt (OGF) electrode, functionalized with oxygen-containing groups via facile thermal oxidation. The synergistic integration of these moieties with the inherent 3D porous structure facilitates hydrogen-bonding interactions, enabling efficient capture of a crucial oxidative intermediate of 5-HIAA: its cationic free radical. This unique molecular recognition mechanism generates a distinctive six-peak voltammetric signature in cyclic voltammetry, providing deeper insights into the complex oxidation pathway of 5-HIAA. Utilizing adsorptive stripping square wave voltammetry, the OGF sensor achieves a wide linear range of 0.35–26.5 μmol/L and a low limit of detection of 0.094 μmol/L (S/N = 3). The enhanced analytical performance is directly linked to the superior intermediate-trapping capability of OGF, highlighting its potential for reliable biosensing applications.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145595475","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

Multianalytical Study of Amuletic and Talismanic Islamic-African Paper Manuscripts in the Slovene Ethnographic Museum 斯洛文尼亚民族志博物馆中非混血和护身符伊斯兰-非洲纸手稿的多分析研究。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2025-11-20 DOI: 10.1002/cplu.202500433

Abdelrazek Elnaggar, Hend Mahgoub, Laura Maestro-Guijarro, Ana Crespo Ibáñez, Paula María Carmona-Quiroga, Santiago Sánchez-Cortés, Žiga Rehar, Gregor Kos, Ahmed Ameen, Marko Frelih, Matija Strlič, Mohamed Oujja, Marta Castillejo

{"title":"Multianalytical Study of Amuletic and Talismanic Islamic-African Paper Manuscripts in the Slovene Ethnographic Museum","authors":"Abdelrazek Elnaggar, Hend Mahgoub, Laura Maestro-Guijarro, Ana Crespo Ibáñez, Paula María Carmona-Quiroga, Santiago Sánchez-Cortés, Žiga Rehar, Gregor Kos, Ahmed Ameen, Marko Frelih, Matija Strlič, Mohamed Oujja, Marta Castillejo","doi":"10.1002/cplu.202500433","DOIUrl":"10.1002/cplu.202500433","url":null,"abstract":"In contrast to its European counterpart, Islamic papermaking is still little researched, especially in scientific and conservation contexts. This study presents the first in-depth material analysis of a unique collection of Islamic-African amulets and talismans from the nineteenth and twentieth centuries, held at the Slovene Ethnographic Museum. This research employed a multi-analytical approach that included pH measurements, analysis of fibrous materials, iodine test for the presence of starch, hyperspectral imaging (HSI), FTIR-ATR, Raman spectroscopy, laser-induced fluorescence (LIF), and laser-induced breakdown spectroscopy (LIBS), as well as cultural interpretations. Twelve selected manuscripts were examined to characterize paper, inks, dyes, and calligraphic features. The results showed the use of iron gall inks, plant-based dyes, and mixed paper fibers (straw and softwood pulp), suggesting a mixture of local and imported materials from the colonial period. The calligraphic and decorative styles reflect a synthesis of orthodox Qur’an and local West African Sufi traditions, often incorporating protective texts, magic squares, and regional variants of Kufic script. The findings shed light on technological aspects of Islamic manuscript production in West Africa and support the informed conservation, display, and interpretation of these culturally and spiritually significant objects. This research sets a precedent for comparative heritage studies and enhances the understanding of Islamic material culture in African contexts.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"90 12","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cplu.202500433","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555938","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

Photoinduced Formation of BODIPY Radical Cation in Meso-Methyl-BODIPY Photocage: Direct Evidence with Chemically Induced Dynamic Nuclear Polarization Technique 中甲基-BODIPY光笼中光诱导BODIPY自由基阳离子的形成：化学诱导动态核极化技术的直接证据。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2025-11-20 DOI: 10.1002/cplu.202500506

Nikolay Polyakov, Mikhail Panfilov, Andrey Komarovskikh, Nataliya Osik, Alexander Moskalensky, Alexey Vorob’ev, Olga Selyutina

{"title":"Photoinduced Formation of BODIPY Radical Cation in Meso-Methyl-BODIPY Photocage: Direct Evidence with Chemically Induced Dynamic Nuclear Polarization Technique","authors":"Nikolay Polyakov, Mikhail Panfilov, Andrey Komarovskikh, Nataliya Osik, Alexander Moskalensky, Alexey Vorob’ev, Olga Selyutina","doi":"10.1002/cplu.202500506","DOIUrl":"10.1002/cplu.202500506","url":null,"abstract":"Light-responsive molecules that can release drugs upon light absorption have attracted significant interest in chemistry and biology. BODIPY-based photoremovable protecting groups, or photocages, have recently emerged as especially promising tools in this respect. However, the exact photorelease mechanism is still not fully understood. We study the photochemical decomposition of meso-Methyl-BODIPY-conjugated epinephrine using 1H nuclear magnetic resonance and chemically induced dynamic nuclear polarization (CIDNP) techniques. After irradiation, epinephrine was detected only in trace amounts, whereas its oxidation product, adrenochrome, was the predominant product. Surprisingly, the CIDNP study has shown that the electron transfer (ET) in this reaction does not proceed from epinephrine to the BODIPY moiety, but rather occurs between two BODIPY cores. To validate this hypothesis, we applied the CIDNP method to detect photoinduced ET between two model BODIPY molecules in solution. In addition, the radical cation of BODIPY has been detected for the first time by CIDNP under photolysis in the presence of the electron acceptor–chloranil. The hyperfine interaction (HFI) constants of the BODIPY radical cation were estimated from the CIDNP spectrum, and they are in agreement with the HFI constant predicted by density functional theory calculations. Due to high enhancement coefficients, the CIDNP technique allows for to detection of polarized BODIPY products at very low concentrations.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555925","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

Charge Transfer Complexes of Thienyl-Substituted Diazadiphosphapentalenes with 1,2,4,5-Tetracyanobenzene: Synthesis, Structure, and Photoconductivity 噻吩取代二氮二磷五烯- 1,2,4,5-四苯基的电荷转移配合物：合成、结构和光电导率。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2025-11-20 DOI: 10.1002/cplu.202500532

Matvey Grishin, Vyacheslav Sushev, Natalia Zolotareva, Alexandra Khristolyubova, Roman Rumyantcev, Georgy Fukin, Andrey Luk’yanov, Vlad Travkin, Artem Nazarov, Alexander Kornev

{"title":"Charge Transfer Complexes of Thienyl-Substituted Diazadiphosphapentalenes with 1,2,4,5-Tetracyanobenzene: Synthesis, Structure, and Photoconductivity","authors":"Matvey Grishin, Vyacheslav Sushev, Natalia Zolotareva, Alexandra Khristolyubova, Roman Rumyantcev, Georgy Fukin, Andrey Luk’yanov, Vlad Travkin, Artem Nazarov, Alexander Kornev","doi":"10.1002/cplu.202500532","DOIUrl":"10.1002/cplu.202500532","url":null,"abstract":"3a, 6a-Diaza-1,4-diphosphapentalenes (RR’DDP) containing thienyl and alkyl peripheral substituents were synthesized (R, R’ = {(5-ethylthienyl-2), Me} (6), {(thienyl-2), n-Bu} (7)). Interaction of 1,2,4,5-tetracyanobenzene (TCNB) with DDP 6 in any stoichiometry produces sandwich complex of the composition DDP-TCNB-DDP. Estimation of the HOMO−LUMO gap from the onset of optical absorption gives value of 1.34 eV. The study of the electron density topology showed that each TCNB molecule is an acceptor of 0.44e in the crystal while each DDP molecule in stack is charged + 0.22e. The energy of intermolecular interactions between the donor and acceptor molecules is 8.2 kcal/mol. We demonstrate for the first time the photoconductivity of a representative of a new class of charge–transfer complexes based on diazadiphosphapentalenes. Electrical measurements of single crystals of the (RR’DDP)/TCNB complex (R, R’ = {(thienyl-2), Me} showed that the photocurrent under 1 Sun-irradiation is close to 1.5 nA, and the photosensitivity reaches 70. Complexation of TCNB with diazadiphosphapentalene 7 containing n-butyl peripheral substituents does not result in the formation of a stable complex. Analysis of ten representatives of diazadiphosphapentalenes showed that steric effects and the flexibility of peripheral substituents play a decisive role in complexation with TCNB.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555892","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

CF2-Driven Regioselectivity in C70 Hydrogenation C70加氢反应中cf2驱动的区域选择性。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2025-11-20 DOI: 10.1002/cplu.202500432

Nikita A. Malkin, Victor A. Brotsman, Natalia S. Lukonina, Nikita M. Belov, Andrey A. Eliseev, Alexey A. Goryunkov

引用次数: 0

High-Entropy Alloy Nano-Aggregates Enable Durable and High-Efficiency Oxygen Reduction Reaction 高熵合金纳米聚集体实现持久高效的氧还原反应。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2025-11-20 DOI: 10.1002/cplu.202500489

Jiahui Chen, Zenan Wu, Guoqiang Cao, Guangxing Yang, Qiao Zhang, Zhiting Liu, Feng Peng

引用次数: 0

Front Cover: Crystal Structure of Iodinated Mesoionic Triphenylthiazol-3-ium-4-olates: Combination of Stacking and Halogen Bonding Interactions (ChemPlusChem 11/2025) 封面：碘化介离子三苯基噻唑-3-ium-4-油酸盐的晶体结构：堆叠和卤素键相互作用的组合（ChemPlusChem 11/2025）

IF 2.8 4区化学

ChemPlusChem Pub Date : 2025-11-11 DOI: 10.1002/cplu.70072

Shoji Matsumoto, Shun Suzuki, Motohiro Akazome

引用次数: 0

Metal Meets Nucleobase: A Cd(II)–Adenine Complex with Bridging Supramolecular Architectures and Antibacterial Activity 金属与核碱基相遇：具有桥接超分子结构的Cd(II)-腺嘌呤复合物及其抗菌活性。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2025-10-30 DOI: 10.1002/cplu.202500498

Sourav Nath, Tanushree Sen, Vishal Kumar Deb, Toufique Shahnowaz, Souryadeep Mukherjee, Werner Kaminsky, Subhadip Roy, Rahul Shukla, Suman Adhikari

{"title":"Metal Meets Nucleobase: A Cd(II)–Adenine Complex with Bridging Supramolecular Architectures and Antibacterial Activity","authors":"Sourav Nath, Tanushree Sen, Vishal Kumar Deb, Toufique Shahnowaz, Souryadeep Mukherjee, Werner Kaminsky, Subhadip Roy, Rahul Shukla, Suman Adhikari","doi":"10.1002/cplu.202500498","DOIUrl":"10.1002/cplu.202500498","url":null,"abstract":"A mononuclear Cd(II) complex, [Cd(9BuA)2(H2O)2(DMF)NO3]NO3 (1) derived from 9-butyladenine (9BuA) has been synthesized and characterized using elemental analysis, Fourier transform infrared 1H NMR, and single-crystal X-ray diffraction analysis. Crystallographic analysis reveals a distorted octahedral coordination environment around the Cd(II) center, where two 9BuA ligands, two water molecules, a DMF molecule, and a nitrate ion coordinate through N and O atoms. The complex exists as a monocation stabilized by an additional noncoordinated nitrate counterion. Hirshfeld surface analysis and electrostatic potential mapping highlight the dominance of hydrogen-bonding interactions (CH…O, NH…O, OH…O, etc.), which collectively stabilize the 3D crystal packing. Energy framework analysis identifies 18 dimeric interactions, with the most stable dimers stabilized by strong Coulombic forces, resulting in total interaction energies between −145.3 and −376.3 kJ mol−1. The photophysical investigation shows chelation-enhanced fluorescence due to ligand rigidification upon coordination. In vitro antibacterial assays of complex 1 against six bacterial strains—three Gram-positive (Mammaliicoccus lentus, Staphylococcus cohnii, Bacillus cereus) and three Gram-negative (Enterobacter cloacae, Klebsiella pneumoniae, Shigella sonnei)—reveal selective and potent activity. To the best of current knowledge, this study presents the first structurally and biologically characterized Cd(II) complex of a modified adenine derivative, integrating detailed supramolecular and photophysical analyses with antibacterial evaluation.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145407699","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

Blue and Second Near-Infrared Transmissive Electrochromic Polymers based on ProDOT and Triphenylamine Derivatives 基于ProDOT和三苯胺衍生物的蓝色和第二近红外透射电致变色聚合物。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2025-10-30 DOI: 10.1002/cplu.202500405

Jinghua Jiang, Fayun Ma, Shouyi Ming, Shijie Zhen, Kaiwen Lin, Meijing Li

{"title":"Blue and Second Near-Infrared Transmissive Electrochromic Polymers based on ProDOT and Triphenylamine Derivatives","authors":"Jinghua Jiang, Fayun Ma, Shouyi Ming, Shijie Zhen, Kaiwen Lin, Meijing Li","doi":"10.1002/cplu.202500405","DOIUrl":"10.1002/cplu.202500405","url":null,"abstract":"Electrochromic materials have recently aroused extreme attention due to their exceptional application potential in display screens, architectural glass, and coating stealth materials, etc. Developing electrochromic polymers synchronously sharing blue and second near-infrared (NIR-II) transmissive is urgently in demand but extremely scarce. Herein, three kinds of electrochromic polymers featuring redox electrochemical and electrochromic properties are obtained through electrochemical polymerization of three monomers, ProDOT-TPA, ProDOT-TPPA, and ProDOT-2TPA, which are constructed based on 3,4-ethylenedioxythiophene (ProDOT) and triphenylamine (TPA) derivatives. Electrochemical studies reveal that ProDOT-TPA exhibits low initial oxidation potential of 0.59 V, possessing significant advantages for obtaining high-quality polymers. The optimized polymers [P(ProDOT-TPA)] show significant properties in electrochromic devices with optical contrast of 14.38% at 400 nm and 49.55% at 1100 nm, along with coloration efficiency of 123 cm2 C−1 and response times of 0.5 s.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"90 12","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145399404","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

Continuous Flow Catalytic Reductive Amination of Carbonyl Compounds to Primary Amines with Carbon-Coated Co@CS Catalyst under Mild Conditions 温和条件下碳包覆Co@CS催化剂催化羰基化合物连续流还原胺化制伯胺。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2025-10-30 DOI: 10.1002/cplu.202500381

Siyi Mi, Yulong Lei, Jianguo Liu, Sang-Hyun Pyo

{"title":"Continuous Flow Catalytic Reductive Amination of Carbonyl Compounds to Primary Amines with Carbon-Coated Co@CS Catalyst under Mild Conditions","authors":"Siyi Mi, Yulong Lei, Jianguo Liu, Sang-Hyun Pyo","doi":"10.1002/cplu.202500381","DOIUrl":"10.1002/cplu.202500381","url":null,"abstract":"Reductive amination is crucial for synthesizing amines in pharmaceutical and industry, yet selectively producing primary amines on a large scale remains challenging. This work presents a continuous-flow reductive amination process using benzaldehyde with NH3 and H2 as the nitrogen sources and reductant. A cobalt catalyst supported on nitrogen-doped carbon derived from chitosan (Co@CS) was developed. After optimization, a primary amine yield exceeding 99% was achieved under mild reaction conditions. The catalyst demonstrated excellent stability in long-term tests and with various substrates, including the biomass lignin-derived vanillin. Compared to batch reactors, theflow reactor provided superior selectivity. This catalytic flow process minimizes waste, enhances atom economy, avoids hazardous chemical, and improves energy efficiency. The use of a renewable chitosan feedstock and a safer process aligns with multiple principles of green chemistry. The exceptional heat and mass transfer in the Flow system offers an effective strategy for the large-scale production of primary amines from biomass platform compounds.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"90 12","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145407640","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