化学最新文献

{"title":"Application of alkylammonium halides for the reaction of CO2 addition to oxiranes","authors":"S. E. Lyubimov,&nbsp;P. V. Cherkasova","doi":"10.1007/s11172-025-4680-9","DOIUrl":"10.1007/s11172-025-4680-9","url":null,"abstract":"<div><p>The review presents analysis of most important publications addressing the efficiency of alkylammonium halides in the addition of CO₂ to oxiranes.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"1940 - 1957"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853614","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}

{"title":"1D Bi Ribbon/[PO4] Synergy-Driven Bismuth Phosphates for Ultraviolet Nonlinear Optical Crystals with Large SHG and Birefringence","authors":"Lei Wu, Xudong Leng, Bao Jiang, Xueyin Fu, Yi Huang, Xue Yu, Qun Jing, Zhaohui Chen","doi":"10.1039/d5qi01322d","DOIUrl":"https://doi.org/10.1039/d5qi01322d","url":null,"abstract":"By leveraging second-harmonic generation (SHG) capabilities, ultraviolet (UV) nonlinear optical (NLO) crystals can efficiently produce UV coherent light and are essential components for advancing UV solid-state laser systems. Herein, two new bismuth phosphates, Rb1.32Bi3.56P2O11 (I) and K1.08Bi3.64P2O11 (II), were synthesized via a high-temperature melt method. Of them, Rb1.32Bi3.56P2O11 exhibits a significant phase-matching SHG response (2.8 × KDP) and large birefringence (0.062 @ 532 nm, 0.053@1064 nm), along with an expanded UV transmission window. Moreover, theoretical analyses revealed that the optimized optical polarizability of Rb1.32Bi3.56P2O11 primarily arises from the cooperative effects of the one-dimensional (1D) polycationic Bi(2)Bi(2)×Bi(1)Bi(1)×Bi(1)Bi(1)×Bi(2)Bi(2) ribbons and [PO4] tetrahedron. We believe the work will provide a valuable strategy to design UV NLO materials with good performances.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"176 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144857890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical biosensor with custom fluidics for amplification-free, low-picomolar DNA detection","authors":"Tina D’Aponte, Maria De Luca, Elisabetta de Alteriis, Fabrizio Cartenì, Stefano Mazzoleni, Raffaele Velotta, Vincenzo Iannotti, Bartolomeo Della Ventura","doi":"10.1016/j.aca.2025.344554","DOIUrl":"https://doi.org/10.1016/j.aca.2025.344554","url":null,"abstract":"<h3>Background</h3>The sensitive and rapid detection of low-concentration DNA sequences in complex biological matrices remains a critical need across biomedical, environmental, and food sectors. While amplification-based techniques like PCR offer high sensitivity, they are constrained by the need for complex instrumentation and skilled personnel, limiting their use in decentralized settings. Electrochemical biosensors are attractive for point-of-care testing due to their speed and portability, but are hindered by probe immobilization variability, sample interference, and labeling requirements. There is a clear need for robust, label-free, and easy-to-use DNA biosensors capable of performing reliably in real-world complex matrices.<h3>Results</h3>We present a label-free impedimetric DNA biosensor integrating screen-printed gold electrodes (AuSPEs) with an optimized 3D-printed fluidic cell. This innovative design ensures consistent probe immobilization while significantly improving hybridization efficiency through controlled convective transport, as demonstrated by COMSOL simulations. The platform achieves sensitive detection with a LOD of 0.1 pM (0.6 pg/mL) in PBS buffer using electrochemical impedance spectroscopy (EIS), eliminating requirements for target amplification or extensive sample preparation. The biosensor maintains excellent performance in complex biological media, successfully detecting target sequences in untreated <em>S. cerevisiae</em> culture supernatants with minimal matrix interference. Furthermore, the system demonstrates exceptional discrimination capability, reliably identifying single-base mismatches while exhibiting minimal cross-reactivity with supernatants from non-target microorganisms (<em>E. coli</em> and <em>C. albicans</em>). These results highlight the system’s sensitivity, selectivity, and robustness for nucleic acid detection.<h3>Significance</h3>This study represents a notable advancement in electrochemical biosensing, introducing a modular, amplification-free platform capable of highly sensitive DNA detection in both buffer solutions and complex biological samples. Its low cost, operational simplicity, and reliable performance in real-world matrices make it a promising candidate for point-of-care applications. This approach offers a practical alternative for molecular diagnostics and monitoring in clinical, environmental, and industrial contexts.","PeriodicalId":240,"journal":{"name":"Analytica Chimica Acta","volume":"114 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144857971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Force Switching and Potential Shifting Lead to Significant Cutoff Dependence in Alchemical Free Energies.","authors":"Lindsey M Whitmore,Yalda Ramezani,Sumit Sharma,Michael R Shirts","doi":"10.1021/acs.jctc.5c00646","DOIUrl":"https://doi.org/10.1021/acs.jctc.5c00646","url":null,"abstract":"The accurate treatment of long-range energy terms such as van der Waals interactions is crucial for reliable free energy calculations in molecular simulations. Methods like force switching, potential switching, potential shifting, and Ewald summation of van der Waals are commonly employed to smooth the truncation or otherwise manage these interactions at and beyond a cutoff distance, but their effects on free energy calculations are not always clear. In this study, we systematically explore the effects of these modifiers on the accuracy of free energy calculations using model systems: Lennard-Jones spheres, all-atom anthracene in water with GROMACS, and alkane chains in water with LAMMPS. Our results reveal that free energies of solvation using potential switching and particle-mesh Ewald summation of long-range Lennard-Jones are essentially independent of cutoff in solution, while force switching and potential shifting introduce cutoff-dependent behavior that is significant enough to affect the utility of the calculations.","PeriodicalId":45,"journal":{"name":"Journal of Chemical Theory and Computation","volume":"76 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144857818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Grain Boundary Oxygen Improving the Acidic Oxygen Evolution Reaction of Zn-RuO2@ZnO.","authors":"Yin Qin,Sihao Deng,Xiao-Ye Zhou,Zilin Yan,Lunhua He,Kaikai Li,Tong-Yi Zhang","doi":"10.1021/jacs.5c08187","DOIUrl":"https://doi.org/10.1021/jacs.5c08187","url":null,"abstract":"The lattice oxygen evolution reaction (OER) is the currently predominant mechanism, while the grain boundary (GB) OER is still the enigma. This study proposes the grain boundary oxygen mechanism (GBOM) and validates it using Zn-RuO2@ZnO in OER. An optimal GB density in Zn-RuO2@ZnO achieves an overpotential of 170 mV and 600 h durability at 10 mA cm-2. As an anode catalyst in proton-exchange membrane water electrolyzers (PEMWEs), Zn-RuO2@ZnO exhibits exceptional stability (>300 h at 500 mA cm-2) and high efficiency, requiring only 1.68 V to deliver 1 A cm-2 under 60 °C. Notably, the reduced symmetry at GBs enhances the Ru 4dxy-O 2p hybridization, manifested as a distinct antiferromagnetic state, which activates the GBOM pathway and stabilizes its operation through electron transfer into lower-energy orbitals. Our findings highlight that GBs with antiferromagnetic characteristics offer an intriguing design strategy for developing highly active and stable OER catalysts.","PeriodicalId":49,"journal":{"name":"Journal of the American Chemical Society","volume":"24 1","pages":""},"PeriodicalIF":15.0,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144857672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bioinspired Design of PVDF/SiO2-g-PEGDA Membranes Via Vapor-Induced Phase Separation for Oil/Water Separation.","authors":"Ran Yu,Liying Pu,Xiaofang Wang,Peng Liu,Xiang Shen","doi":"10.1021/acs.langmuir.5c02623","DOIUrl":"https://doi.org/10.1021/acs.langmuir.5c02623","url":null,"abstract":"The eco-friendly nature and energy efficiency of polymeric membranes have established them as pivotal materials for oil-in-water emulsion separation. However, persistent membrane fouling caused by oil deposition remains a major challenge, significantly hindering their practical implementation in industrial settings. In this work, thiol-ene photochemistry was employed to synthesize PEGylated silica nanoparticles (SiO2-g-PEGDA) using poly(ethylene glycol) diacrylate (PEGDA) and hexanedithiol (HD) as monomers. Biomimetic PVDF membranes were engineered via vapor-induced phase separation (VIPS) by integrating SiO2-g-PEGDA nanoparticles, followed by secondary coagulation in a dopamine (DA) solution. The experimental results demonstrate that the biomimetic membranes exhibit a characteristic sponge-like cross-sectional morphology and well-defined rough surface microstructures, which are attributed to the synergistic roles of SiO2-g-PEGDA as nanofillers and DA as interfacial cross-linker during secondary phase separation. Energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) analyses confirm that the combined action of nanoparticles and PDA significantly increases the density of hydrophilic functional groups on membrane surfaces and within pore channels. The membranes exhibit excellent hydrophilicity and underwater superoleophobicity, achieving an outstanding emulsion flux of 3537 Lm-2 h-1 bar-1 and an oil removal efficiency of 98.5%. After 15 cycles of oil-water separation, the membranes maintain a high flux recovery rate of 85.6%. Moreover, the biomimetic membranes possess exceptional operational stability, as evidenced by consistent surface wettability under organic solvents, strong acid and high-salinity conditions.","PeriodicalId":50,"journal":{"name":"Langmuir","volume":"27 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144857768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Umpolung C-N Bond Formation Enabled by Rhodium-Catalyzed Arylation of Sulfilimines with Arylboronic Acids.","authors":"Yifei Yan,Yu Han,Zhiwei Huang,Xuanxuan Chen,Yinhua Huang","doi":"10.1021/acs.orglett.5c02633","DOIUrl":"https://doi.org/10.1021/acs.orglett.5c02633","url":null,"abstract":"A new type of umpolung C-N bond-forming approach enabled by Rh-catalyzed arylation of sulfilimines with arylboronic acids is reported, providing a versatile platform for the construction of various nitrogen-containing molecules. The key process is proposed to undergo 1,1-elimination at the sulfur atom triggered by the regioselective addition of an aryl-rhodium species to the S═N moiety creating a C-N bond to furnish an aminorhodium intermediate that is subsequently trapped by various electrophiles to give arylamines. This approach has also been extended to the three-component amination to furnish a diarylamine product via the creation of C-N-C bonds. This approach exhibits a broad substrate scope and wide functional-group compatibility under mild conditions, enabling the late-stage functionalization of complex molecules to prepare nitrogen-containing variants of drug candidates with potential therapeutic activity.","PeriodicalId":54,"journal":{"name":"Organic Letters","volume":"175 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144857776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Controlled synthesis of easily degradable polymers via the radical copolymerization of cyclic ketene acetals with vinyl monomers","authors":"M. Yu. Zaremski,&nbsp;E. E. Aliev,&nbsp;N. S. Goulioukina,&nbsp;A. V. Plutalova","doi":"10.1007/s11172-025-4700-9","DOIUrl":"10.1007/s11172-025-4700-9","url":null,"abstract":"<div><p>Opportunities of the controlled synthesis of easily degradable polymers were analyzed for the copolymerization of vinyl monomers with cyclic ketene acetals. Features of a new type of synthesis of easily degradable polymers <i>via</i> the radical copolymerization of vinyl monomers with cyclic ketene acetals were evaluated using copolymerization of styrene with 2-methylene-1,3-dioxepane as the model example. Upon the polymerization of those cyclic ketene acetals, the ring was opened forming the ester groups, which resulted in “weak” units capable of hydrolysis and biodegradation in the polystyrene (PS) chain. Kinetic features were estimated for the copolymerization. The possibility of controlled synthesis of PS according to the method of reversible inhibition with the participation of TEMPO nitroxide was demonstrated. The composition and molecular weight characteristics were estimated for the products. Their destruction upon hydrolysis in an alkaline medium was confirmed.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2169 - 2175"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853567","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}

{"title":"Standard enthalpies of formation of organometallic compounds of the I–VI and VIII group elements of the Periodic Table: correlation analysis of the influence of substituents","authors":"N. M. Khamaletdinova,&nbsp;O. V. Kuznetsova,&nbsp;A. N. Egorochkin","doi":"10.1007/s11172-025-4683-6","DOIUrl":"10.1007/s11172-025-4683-6","url":null,"abstract":"<div><p>Published results on the standard enthalpies of formation (Δ_<i>f</i><i>H</i>°) of 22 narrow series of compounds of the I–VI and VIII group elements of the Periodic Table are analyzed. When these compounds are formed from simple substances, an excess charge appears on the reaction center, inducing a dipole in the substituent, which leads to an ion-dipole interaction (polarizability effect). It is shown for the first time that the thermodynamic characteristic Δ_<i>f</i><i>H</i>° depends not only on classical (inductive, resonance, and steric) effects, but also on the polarizability effect of the substituents. In some series, the polarizability effect demonstrates the dominant influence on Δ_<i>f</i><i>H</i>°.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"1986 - 1991"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853565","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}

{"title":"Influence of the nature of an alkylammonium cation on the structure of the metal-organic frameworks based on ZnII and 2,5-furandicarboxylate","authors":"A. A. Shurenkov,&nbsp;A. A. Lysova,&nbsp;D. G. Samsonenko,&nbsp;V. P. Fedin","doi":"10.1007/s11172-025-4689-0","DOIUrl":"10.1007/s11172-025-4689-0","url":null,"abstract":"<div><p>The influence of the nature of an organic cation (dimethylammonium (Me₂NH₂⁺), diethylammonium (Et₂NH₂⁺), and tetramethylammonium (Me₄N⁺)) on the structure of the metal-organic frameworks (MOFs) was studied. The presence of organic dimethyl- or diethylammonium cations, which can act as proton donors in hydrogen bonding, in the Zn²⁺—fdc²⁻—DMF system (fdc²⁻ is 2,5-furandicarboxylate) results in the formation of MOFs [Me₂NH₂]₂[Zn₃(fdc)₄]•2DMF(<b>1</b>) and [Et₂NH₂]₂[Zn₃(fdc)₄]•2DMF•2H₂O (<b>2</b>), which have similar crystal structures of the anionic type and crystallize in the same space group <i>P</i>2₁/<i>c</i>. By contrast, the organic cation Me₄N⁺, which does not contain potential hydrogen-bond donors, promotes the distortion of the framework structure and the formation of a new three-dimensional (3D) anionic MOF [Me₄N]₂[Zn₃(fdc)₄]•DMF•0.5H₂O (<b>3</b>) crystallizing in the space group <i>P</i>2₁/<i>n</i>. Compounds <b>2</b> and <b>3</b> were characterized by single-crystal X-ray diffraction analysis, powder X-ray diffraction analysis, elemental analysis, thermogravimetry, and IR spectroscopy.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2044 - 2051"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853520","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}