Russian Journal of General Chemistry最新文献_第8页

Ionic Liquids for Hydrocarbon/Thiophene Separation: Extensive Analysis of Structure–Property Correlations 用于碳氢化合物/噻吩分离的离子液体：结构-性能相关性的广泛分析

IF 1 4区化学

Russian Journal of General Chemistry Pub Date : 2026-09-01 DOI: 10.1134/S1070363226602851

I. A. Sedov

{"title":"Ionic Liquids for Hydrocarbon/Thiophene Separation: Extensive Analysis of Structure–Property Correlations","authors":"I. A. Sedov","doi":"10.1134/S1070363226602851","DOIUrl":"10.1134/S1070363226602851","url":null,"abstract":"The development of energy-efficient technologies for the deep desulfurization of transport fuels remains a paramount challenge in modern refining. Ionic liquids (ILs) are recognized as promising solvents for extractive desulfurization. The choice of particular ILs for separation processes should be guided by thermodynamic data and models. In this study, we present an analysis of the performance of 192 distinct ILs in the separation of thiophene from hydrocarbons. A dataset of 1597 experimental infinite dilution activity coefficients of thiophene and a number of hydrocarbons in ILs was assembled. These data allowed to uncover the fundamental structure-property relationships that govern the limiting activity coefficient values and hydrocarbon/thiophene selectivity of ILs. The volume density of ion charges quantified via the reciprocal molar volume was found to be the most important factor, with the polarity of the substituents in the cation being the second most important one. Predictive correlations with the two descriptors reflecting these factors reach R2 = 0.8 and above in most cases. The best selectivity is achieved with ILs that contain cations with short-chain polar substituents and small anions, significantly exceeding the performance of conventional molecular solvents. To facilitate the virtual screening of ILs, we introduce a computationally inexpensive, atom-contribution-based approach to estimating IL molar volumes, which achieves high accuracy without the need for experiments or quantum chemical calculations.","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 9","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926510","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}

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N-Phosphorylation of 1(2)-Substituted 5-Aminotetrazoles n - 1(2)-取代5-氨基四唑的磷酸化

IF 1 4区化学

Russian Journal of General Chemistry Pub Date : 2026-09-01 DOI: 10.1134/S107036322660205X

Gleb I. Yunusov, Yulia L. Piterskaya, Andrey V. Khramchikhin

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Synthesis, Antibacterial Evaluation, and Molecular Docking Investigations of Biologically Active Substituted Tetrazole-Linked 1,8-Naphthyridine Derivatives 生物活性取代四唑- 1,8-萘啶衍生物的合成、抗菌评价及分子对接研究

IF 1 4区化学

Russian Journal of General Chemistry Pub Date : 2026-09-01 DOI: 10.1134/S1070363226601092

Ergurala Naveen, Boda Sakram, Myaka Navatha, Banoth Sonyanaik, Srinu Bhoomandla, D. Seshikala

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Redox Activity of Some NADP Analogues and EPR Spectra of Radical Intermediates (A Review) 一些NADP类似物的氧化还原活性及自由基中间体的EPR谱（综述）

IF 1 4区化学

Russian Journal of General Chemistry Pub Date : 2026-09-01 DOI: 10.1134/S1070363226602991

Maxim V. Tarasov, Tatiana V. Gryaznova, Vera V. Khrizanforova, Elizaveta V. Timofeeva, Yulia H. Budnikova

{"title":"Redox Activity of Some NADP Analogues and EPR Spectra of Radical Intermediates (A Review)","authors":"Maxim V. Tarasov, Tatiana V. Gryaznova, Vera V. Khrizanforova, Elizaveta V. Timofeeva, Yulia H. Budnikova","doi":"10.1134/S1070363226602991","DOIUrl":"10.1134/S1070363226602991","url":null,"abstract":"Data on the redox activity of several NADP/NADPH analogues and the magnetic resonance parameters of the intermediates, recorded using EPR, are summarized. Recent data on phosphorylated acridine derivatives are included, along with descriptions and simulations of their EPR spectra and calculations of their magnetic resonance parameters. The unpaired electron in the radicals is shown to be localized on the N-heterocyclic moiety, with the radicals being C-centred. Substituents in the heterocycle, either at nitrogen or carbon (C9 or similar), are shown not to significantly affect the magnetic resonance parameters. C9 phosphorylated acridanes, both mono- and bis-derivatives, have been shown to be capable of forming relatively stable radical intermediates in redox reactions. The EPR spectra of these intermediates were specially recorded and simulated for this review in order to compare them with data from previous studies. The obtained mono- and bisphosphorylated acridanes exhibit high stability in the catalytic hydrogen evolution reaction with TON values 6.9 and 5.5, respectively.","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 9","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926509","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}

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Synthesis and Cytotoxic Activity of Hexacarbonyldicobalt Complexes with 13,14-Dehydroprostaglandins B and Acetylenic Alcohols 与13,14-脱氢前列腺素B和乙炔醇配合物的合成及细胞毒活性研究

IF 1 4区化学

Russian Journal of General Chemistry Pub Date : 2026-09-01 DOI: 10.1134/S1070363226601377

Gul’naz A. Shavaleeva, Nadezhda A. Ivanova, Diana V. Ishmetova, Mansur S. Miftakhov

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Reactions of 1,2,4,5-Tetrafluoro-3-(perfluoropropyl)benzene with 1,2,3,4- and 1,2,4,5-Tetrafluorobenzenes in an SbF5 Medium 1,2,4,5-四氟-3-（全氟丙基）苯与1,2,3,4-和1,2,4,5-四氟苯在SbF5介质中的反应

IF 1 4区化学

Russian Journal of General Chemistry Pub Date : 2026-08-27 DOI: 10.1134/S1070363226601626

Vladislav V. Komarov, Artem L. Chepakin, Alexander M. Genaev, George E. Salnikov, Yaroslav V. Zonov, Victor M. Karpov, Tatyana V. Mezhenkova

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Synthesis of N,O-(Сarboxymethyl)chitosan under Synthesis in Gel Conditions and Its Sorption Properties 凝胶法制备N，O-（Сarboxymethyl）壳聚糖及其吸附性能

IF 1 4区化学

Russian Journal of General Chemistry Pub Date : 2026-08-27 DOI: 10.1134/S1070363226601286

Elizaveta A. Amelina, Olga V. Koryakova, Mikhail I. Kodess, Alexander V. Mekhaev, Alexander V. Pestov

{"title":"Synthesis of N,O-(Сarboxymethyl)chitosan under Synthesis in Gel Conditions and Its Sorption Properties","authors":"Elizaveta A. Amelina, Olga V. Koryakova, Mikhail I. Kodess, Alexander V. Mekhaev, Alexander V. Pestov","doi":"10.1134/S1070363226601286","DOIUrl":"10.1134/S1070363226601286","url":null,"abstract":"Methods for the synthesis of N,O-(carboxymethyl)chitosan with degrees of substitution ranging from 0.1 to 1.7 were developed using alkali metal and ammonium monochloroacetates in a nucleophilic substitution reaction under polymer-analogous synthesis in gel conditions in neutral and alkaline media. The use of sodium monochloroacetate as a functionalizing agent and a weak Brønsted base facilitated the production of a water-soluble polymer with a maximum degree of substitution of 1.1. The addition of NaOH as a stronger base increased the degree of carboxymethylation of chitosan to 1.7. The influence of the chemical structure of sorbents based on N,O-(carboxymethyl)chitosan crosslinked with epichlorohydrin on their sorption capacity towards transition metal ions Cu2+, Ni2+, Co2+, and Zn2+ was revealed. The dependence of the static exchange capacity of the sorbent on the degree of substitution exhibits an extreme character. The maximum capacity was 1.827 mmol/g at a degree of substitution of 0.7, after which the exchange capacity decreases. However, crosslinked polymers with lower static exchange capacity exhibited selective complexation with Cu2+ ions.","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 9","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823057","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

Bio-Inspired Ce–TiO2 Nanostructures as Triple-Functional Platforms for Environmental and Biomedical Applications 仿生Ce-TiO2纳米结构在环境和生物医学应用中的三功能平台

IF 1 4区化学

Russian Journal of General Chemistry Pub Date : 2026-08-27 DOI: 10.1134/S1070363225608191

Sijana S, M. Amalanathan, M. Sony Michael Mary, Prammitha Rajaram, P. Ram Kumar, N. Sheen Kumar, Shiney Manoj, A. Seema, Lekshmi S, V. S. Shali

{"title":"Bio-Inspired Ce–TiO2 Nanostructures as Triple-Functional Platforms for Environmental and Biomedical Applications","authors":"Sijana S, M. Amalanathan, M. Sony Michael Mary, Prammitha Rajaram, P. Ram Kumar, N. Sheen Kumar, Shiney Manoj, A. Seema, Lekshmi S, V. S. Shali","doi":"10.1134/S1070363225608191","DOIUrl":"10.1134/S1070363225608191","url":null,"abstract":"Cerium-doped titanium dioxide nanoparticles (Ce-TiO2 NPs) were developed using a sustainable sol-gel technique, utilizing Annona muricata leaf extract as a natural reducing and stabilizing agent. Comprehensive characterization techniques were employed to elucidate their structural, optical, antimicrobial, and anticancer functionalities. X-Ray diffraction (XRD) and transmission electron microscopy (TEM) analyses confirmed the successful incorporation of cerium ions into the TiO2 lattice, which favored the formation of a higher rutile phase content, refined crystallite sizes, and improved particle morphology. Elemental mapping through energy-dispersive X-ray spectroscopy (EDS) validated the effective dispersion of Ce dopants. UV-Visible spectroscopy revealed a conspicuous bandgap narrowing and enhanced visible light absorption attributable to cerium incorporation. The nanoparticles exhibited potent antimicrobial activity against various pathogenic bacteria and fungi. Photocatalytic experiments demonstrated that Ce-TiO2 NPs achieved 94% degradation of methylene blue dye within 80 min under sunlight irradiation. Moreover, cytotoxicity assays using MDA-MB-231 human breast cancer cells indicated a significant, dose-dependent decrease in cell viability. These findings highlight the enhanced therapeutic efficacy conferred by cerium doping, underscoring its potential for visible-light-driven photodynamic cancer therapies.","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 9","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823056","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}

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Synthesis and Characterization of Post-Metallocene Complex and Optimization of Reaction Conditions by RSM for Polymerization of MMA 茂金属后配合物的合成、表征及聚合反应条件的RSM优化

IF 1 4区化学

Russian Journal of General Chemistry Pub Date : 2026-08-27 DOI: 10.1134/S1070363226600402

Deepal Agrawal, Sudip Kumar De, Nitish Kumar Gupta

{"title":"Synthesis and Characterization of Post-Metallocene Complex and Optimization of Reaction Conditions by RSM for Polymerization of MMA","authors":"Deepal Agrawal, Sudip Kumar De, Nitish Kumar Gupta","doi":"10.1134/S1070363226600402","DOIUrl":"10.1134/S1070363226600402","url":null,"abstract":"A novel tridentate dianionic ligand, [2-(3,5-di-tert-butyl-2-hydroxy-benzylamino) acetic acid], was successfully synthesized and employed in the formation of a new six-coordinate titanium complex with the general formula [TiLCl2THF]. Additionally, the catalytic activity of the complex, in the presence of a сoсatalyst was evaluated in an aqueous medium, revealing efficient catalytic activity for the homo-polymerization of methyl methacrylate (MMA) in aqueous medium under mild reaction conditions. To verify the structure of the complex, various instrumental techniques were employed, including 1H nuclear magnetic resonance (NMR), ultraviolet-visible spectroscopy (UV-visible) and elemental analysis. These analyses provided valuable insights into the composition and bonding of the complex. Furthermore, the properties of the resulting polymethyl methacrylate (PMMA) were thoroughly investigated using a range of techniques, including 1H NMR, Differential scanning calorimetry (DSC), and Gel permeation chromatography (GPC). These analyses helped to elucidate the structural and thermal characteristics and molecular weight of the synthesized PMMA. The reaction conditions for the polymerization of MMA using the complex were also optimized through a response surface methodology approach, ensuring the highest efficiency and yield in the polymerization process. The developed RSM model demonstrated reasonable agreement between predicted and experimental PMMA yield values within the investigated operating range.","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 9","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823058","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}

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Unraveling Non-Linear Hammett Behavior in Aromatic Sulfinyl Acetic Acid Oxidation Catalyzed by [FeIII(salen)]Cl Complexes [FeIII(salen)]Cl配合物催化芳香亚硝基乙酸氧化的非线性Hammett行为

IF 1 4区化学

Russian Journal of General Chemistry Pub Date : 2026-08-27 DOI: 10.1134/S1070363225608695

C. Shanmuga Sundari, N. Edayadulla, P. Subramaniam, Periyakaruppan Karuppasamy

{"title":"Unraveling Non-Linear Hammett Behavior in Aromatic Sulfinyl Acetic Acid Oxidation Catalyzed by [FeIII(salen)]Cl Complexes","authors":"C. Shanmuga Sundari, N. Edayadulla, P. Subramaniam, Periyakaruppan Karuppasamy","doi":"10.1134/S1070363225608695","DOIUrl":"10.1134/S1070363225608695","url":null,"abstract":"Oxido-decarboxylation mechanism of phenylsulphinylacetic acid (PSAA) by means of eight iron(III)salen complexes in aqueous N,N′-dimethylformamide (DMF) was studied. The active oxidizing species is identified as [FeIII(salen)]+ ion. Complex formation between PSAA and [FeIII(salen)]+ ion was confirmed through Michaelis-Menten kinetics and spectral changes. Introducing diverse electron-withdrawing and releasing groups (except p-OMe) in PSAA slows the reaction rate, with a non-linear Hammett correlation indicating that the influence of substituents shifts in PSAA. Electron-withdrawing groups impede electron transfer (ET) reaction between PSAA and iron-complex, while electron-releasing groups enhance it but also reduce the nucleophilic attack by water. A mechanism involving simultaneous electron transfer and decarboxylation leading to sulfone formation is proposed, with the non-linear Hammett correlation attributed to the development and decay of sulfoxide radical cations influenced by means of substituents.","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 9","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823036","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