Russian Journal of General Chemistry最新文献

{"title":"Asymmetric Synthesis of Isoindolin-1-ones from Enamides via Pd-Catalyzed Intramolecular Reductive Heck Reaction","authors":"M. A. Ashatkina,&nbsp;D. I. Shamshina,&nbsp;V. A. Shiryaev,&nbsp;S. Yu. Vostruhina,&nbsp;A. N. Reznikov,&nbsp;Yu. N. Klimochkin","doi":"10.1134/S1070363224612419","DOIUrl":"10.1134/S1070363224612419","url":null,"abstract":"<p>The intramolecular reductive Heck reaction of <i>o</i>-bromobenzoic acid enamides under catalysis by Pd(OAc)₂/(<i>R</i>)-C₃-Tunephos serves as a convenient approach to the synthesis of enantiomerically enriched 3,3-disubstituted isoindoline-1-ones (up to <i>ee</i> 90%).</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"95 1","pages":"30 - 34"},"PeriodicalIF":0.9,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513139","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":"Halogen Substitution in Inorganics for the Regulation of Phase Transition Temperature in Zero-Dimensional Organic-Inorganic Hybrid Metal Halide Dielectric Switching Materials","authors":"S. G. Yao,&nbsp;X. M. Liu,&nbsp;X. Zhang,&nbsp;Z. E. Cai,&nbsp;Y. N. Zhang,&nbsp;J. Chen","doi":"10.1134/S1070363224610871","DOIUrl":"10.1134/S1070363224610871","url":null,"abstract":"<p>Zero-dimensional (0D) organic-inorganic hybrid metal halide material (OIMH) [C₃H₆NH₂]₂CoBr₄ (C₃H₆NH₂ = azetidine cation) was successfully synthesized and carried out a series of characterizations. A comparison with [C₃H₆NH₂]₂CoCl₄ was then conducted. It was found that after the anionic halogen substitution, the dielectric switching properties remained essentially consistent, and the main reason for the phase transition was the cationic order-disorder motion. However, the phase transition temperature (<i>T</i>_C) of [C₃H₆NH₂]₂CoBr₄ is 364.5 K, which is 16.8 K higher than that of [C₃H₆NH₂]₂CoCl₄. Calculations revealed that the void occupancy between cations and anions decreased from 32.49% in [C₃H₆NH₂]₂CoCl₄ to 29.77% in [C₃H₆NH₂]₂CoBr₄, and due to the reduction in porosity, the temperature required for cationic order-disorder motion is therefore higher. Additionally, the analysis of the Hirshfeld surface and two-dimensional fingerprints revealed that the proportion of intermolecular hydrogen bond interactions in [C₃H₆NH₂]₂CoBr₄ (47.1%) is higher than in [C₃H₆NH₂]₂CoCl₄ (45.75%), and there is also an enhancement in the non-covalent interaction energies between cations and anions (the non-covalent interaction energies between cations and anions in [C₃H₆NH₂]₂CoCl₄ are –6.9 and –8.7 kJ/mol, while in [C₃H₆NH₂]₂CoBr₄ they are –7.6 and –20.9 kJ/mol, which is also the reasons for the increase in <i>T</i>_C. Furthermore, we observed that as the volume of anions in the inorganic framework increased, the band gap value also showed a decreasing trend, from 4 eV for [C₃H₆NH₂]₂CoBr₄ to 3.678 eV for [C₃H₆NH₂]₂CoCl₄.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"95 1","pages":"220 - 228"},"PeriodicalIF":0.9,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513320","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":"Preparation of Co9S8/Cu3(MoO4)2(OH)2 Composite and Its Performance in Activating Peroxymonosulfate for Degradation of Tetracycline","authors":"Y. Xing,&nbsp;C. Zhang,&nbsp;F. Tian,&nbsp;X. Jin,&nbsp;H. M. A. Javed,&nbsp;G. Ni","doi":"10.1134/S1070363224610202","DOIUrl":"10.1134/S1070363224610202","url":null,"abstract":"<p>Co₉S₈ nanotubes were prepared using a template etching method, and subsequently, Cu₃(MoO₄)₂(OH)₂ were grown in-situ via a hydrothermal method. The optimal composite ratio was determined by adjusting the amount of Co₉S₈ nanotubes. Characterization using XRD, SEM, TEM, and XPS revealed that the mass ratio of Co₉S₈ to Cu₃(MoO₄)₂(OH)₂ was 15.0%, the Cu₃(MoO₄)₂(OH)₂ material achieved a 75% degradation rate of Tetracycline (TC) and exhibited good cycling stability. Radical scavenging experiments demonstrated that the primary active species involved in the TC degradation process were SO₄^{<b>•</b>−}, ^•OH, and ¹O₂. The study demonstrates that the Cu₃(MoO₄)₂(OH)₂ composite is an efficient PMS activator, significantly enhancing TC removal efficiency.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"95 1","pages":"196 - 208"},"PeriodicalIF":0.9,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513121","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":"Synthesis, Structure, and Asymmetrization of Tri-p-tolylantimony Derivatives of Alpha-Substituted Acetic, Methacrylic, and Crotonic Acids","authors":"A. V. Gushchin,&nbsp;V. R. Vakhitov,&nbsp;L. A. Shatalin,&nbsp;E. N. Boronin,&nbsp;N. V. Somov","doi":"10.1134/S1070363224613267","DOIUrl":"10.1134/S1070363224613267","url":null,"abstract":"<p>The aim of this work was to synthesize tri-<i>p</i>-tolylantimony dicarboxylates containing substituted acetic, methacrylic, and crotonic acids, to study their structure using IR, NMR, and X-ray methods, and to explore the possibility of obtaining asymmetric dicarboxylates with one non-polymerizing carboxylate fragment and one polymerizable fragment. The reaction of tri-<i>p</i>-tolylantimony with H₂O₂ or <i>t</i>-BuOOH and the corresponding carboxylic acids resulted in the synthesis of derivatives of tri-<i>p</i>-tolylantimony with yields of 57–90%, including saturated dicarboxylates (<i>p</i>-Tol₃Sb(O₂CCH₃)₂, <i>p</i>-Tol₃Sb(O₂CCH₂Cl)₂, <i>p</i>-Tol₃Sb(O₂CCHCl₂)₂, <i>p</i>-Tol₃Sb(O₂CCCl₃)₂, <i>p</i>-Tol₃Sb(O₂CCH₂CN)₂) and unsaturated dicarboxylates (<i>p</i>-Tol₃Sb(O₂CC(CH₃)=CH₂)₂, <i>p</i>-Tol₃Sb(O₂CCH=CHCH₃)₂). The structures of the obtained compounds were studied using modern physicochemical methods, including NMR and X-ray crystallography with the structural parameter τ, as well as IR spectroscopy with a comparison of the differences in the wavenumbers of the valence vibrations ν_as(COO) and ν_s(COO). For the first time, the possibility of synthesizing an asymmetric tri-<i>p</i>-tolylantimony dicarboxylate via a disproportionation reaction was explored, and the equilibrium constant of this reaction was calculated.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"95 1","pages":"96 - 104"},"PeriodicalIF":0.9,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513200","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":"Ecological Characteristic of a Highly Eutrophic Pond: The Role of Green Algae in Eutrophication","authors":"T. N. Gerasimova,&nbsp;A. P. Sadchikov","doi":"10.1134/S1070363224130024","DOIUrl":"10.1134/S1070363224130024","url":null,"abstract":"<p>Patriarch’s Pond is a small water body located within the boundaries of Moscow, where regular and mass blooms of green algae are observed. Various fish species exhibit intermittent spawning throughout the summer, and young fish of different sizes are consistently present in the pond, primarily consuming large zooplankton individuals. This predation results in a shift in the size structure of the zooplankton population toward smaller species. A total of twenty-three zooplankton species have been recorded in the pond, with rotifers being the most abundant. Phytoplankton analysis revealed the presence of 106 species of algae and cyanobacteria, with green algae comprising 67 species.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 13","pages":"3462 - 3466"},"PeriodicalIF":0.9,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361659","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":"Stereodirected Biocatalyzed Reduction of 4-Bromoacetophenone in (R)-(+)-1-(4-Bromophenyl)ethanol","authors":"A. R. Chanysheva,&nbsp;N. V. Privalov,&nbsp;V. V. Zorin","doi":"10.1134/S1070363224130255","DOIUrl":"10.1134/S1070363224130255","url":null,"abstract":"<p>Enantiomerically pure secondary alcohols are valuable building blocks in the asymmetric synthesis of low-molecular bioregulators. For example, (<i>S</i>)- and (<i>R</i>)-1-(4-bromophenyl)ethanols are used in the synthesis of compounds for phototherapy and fluorescent diagnostics of malignant tumors. Previously, we demonstrated the possibility of stereoselective synthesis of (<i>S</i>)-(–)-1-(4-bromophenyl)ethanol from <i>p</i>-bromoacetophenone using biocatalysts based on <i>Daucus carota</i> and <i>Petroselinum crispum</i> plant cells. In this paper, we investigated the possibility of stereodirected synthesis of (<i>R</i>)-(+)-1-(4-bromophenyl)ethanol in the enantioselective bioreduction reaction of prochiral <i>p</i>-bromoacetophenone using <i>Phaseolus vulgaris</i> plant cells possessing R-reductase activity, and studied the possibility of intensification of bioreduction using exogenous reducing agents.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 13","pages":"3639 - 3642"},"PeriodicalIF":0.9,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362113","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":"Morphology and Sorption Characteristics of Surface-Modified Granular Foam Silicate","authors":"A. V. Perfilev,&nbsp;O. N. Tsybulskaya,&nbsp;T. V. Ksenik,&nbsp;A. A. Yudakov,&nbsp;E. B. Merkulov,&nbsp;D. Kh. Shlyk,&nbsp;N. N. Barinov,&nbsp;M. A. Ushkova,&nbsp;M. V. Pavlov","doi":"10.1134/S1070363224130176","DOIUrl":"10.1134/S1070363224130176","url":null,"abstract":"<p>The paper presents the results of a study of the porous structure and sorption characteristics of technogenic foam silicate obtained in the process of complex processing of waste ore raw materials and modified in the process of thermochemical treatment in the gas phase of hydrocarbons. The parameters of thermochemical modification of the surface of foam silicate to obtain an oleophilic adsorbent for the removing of petroleum products from aqueous media, as well as the modes of its regeneration, have been determined. It has been established that the degree of extraction of petroleum products from water by the resulting adsorbent under static conditions is 99.8%.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 13","pages":"3566 - 3575"},"PeriodicalIF":0.9,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361622","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":"Toxicity of Ricin in Humans Following Oral Administration","authors":"G. T. Frumin","doi":"10.1134/S1070363224130073","DOIUrl":"10.1134/S1070363224130073","url":null,"abstract":"<p>The relevance of this study stems from the need to quantify the toxicity of ricin when ingested orally. The aim of the research was to estimate the average lethal doses of ricin for humans via oral administration, using rats as a model organism for the prediction. Formulas for predicting the average lethal doses of ricin in humans are presented. The following methods were employed for this prediction: Yu.R. Rybolovlev and R.S. Rybolovlev’s methods, the American Environmental Protection Agency’s approach, the methods of D.B. Laurence and A.L. Bacharach, and the method developed by the author of this study. The predicted values for the average lethal doses of ricin in humans, along with their average value and confidence interval, are provided.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 13","pages":"3496 - 3499"},"PeriodicalIF":0.9,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361656","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":"Forest Reclamation and Reforestation Strategies in the Far Eastern Federal District","authors":"L. T. Krupskaya,&nbsp;M. Y. Filatova,&nbsp;I. V. Shugalei,&nbsp;A. P. Vozniakovsky,&nbsp;A. V. Leonenko,&nbsp;S. V. Nifontov","doi":"10.1134/S1070363224130358","DOIUrl":"10.1134/S1070363224130358","url":null,"abstract":"<p>This article addresses the major environmental challenges affecting forest landscapes in the Far Eastern Federal District, highlighting the need for forest reclamation on lands degraded by resource extraction and the development of plantation forests. It also outlines potential strategies for improving environmental conditions in the region. The study aims to demonstrate the necessity of rehabilitating forest lands impacted by accumulated waste from mineral processing, a result of past mining activities. This objective is pursued through forest reclamation using bioremediation techniques and the establishment of forest plantations to ensure environmental safety.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 13","pages":"3490 - 3495"},"PeriodicalIF":0.9,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361658","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":"PAHs and Heavy Metals in Contaminated Waters of Oil Refinery and the Caspian Sea","authors":"E. M. Gadirova,&nbsp;S. R. Hajiyeva,&nbsp;A. G. Huseyinli,&nbsp;U. N. Rustamova","doi":"10.1134/S1070363224130243","DOIUrl":"10.1134/S1070363224130243","url":null,"abstract":"<p>Polycyclic aromatic hydrocarbons (PAHs) are among the most common pollutants entering surface waters with wastewater from oil refining, shale processing, forest chemical, coke, aniline dye industries, in the process of timber rafting, as well as with wastewater from the hydrolysis industry. During the process of oil refining, catalytic and thermal cracking, wastewater containing PAHs is formed, which are very dangerous for the environment.To analyze such waters, we took 3 samples from points of the Oil Refinery (OR) and studied the content of PAHs in the wastewater using analytical methods.The content of heavy metals was also determined in these samples.In addition, the content of PAHs in seawater samples taken from the Caspian Sea was determined in parallel.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 13","pages":"3627 - 3638"},"PeriodicalIF":0.9,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362114","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}