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Influence of the Relative Humidity on the Physico-Mechanical Properties of Poly(vinyl alcohol)—Graphene Oxide Composite Films
IF 0.9 4区 化学
Russian Journal of General Chemistry Pub Date : 2024-12-19 DOI: 10.1134/S1070363224120247
T. V. Panova, A. A. Efimova, A. K. Berkovich, A. V. Efimov
{"title":"Influence of the Relative Humidity on the Physico-Mechanical Properties of Poly(vinyl alcohol)—Graphene Oxide Composite Films","authors":"T. V. Panova,&nbsp;A. A. Efimova,&nbsp;A. K. Berkovich,&nbsp;A. V. Efimov","doi":"10.1134/S1070363224120247","DOIUrl":"10.1134/S1070363224120247","url":null,"abstract":"<p>Composite films containing poly(vinyl alcohol) filled with different amounts of graphene oxide (2 and 4 wt %) were prepared by the solution casting technique. Three series of pure poly(vinyl alcohol) and graphene oxide-loaded films with fixed amounts of water were used: films annealed at 70°C for 2 h (2 wt % of water), films equilibrated at 33% relative humidity (5.5% of water) and 65% relative humidity (8% of water), and their physico-mechanical properties were studied. For annealed composite films and films equilibrated at 33% relative humidity the significant increase of the Young’s modulus, yield stress and strength was found with an increase of the filler content. Simultaneously, a sharp decrease of the elongation at break from 50–100% for pure PVA to about 5% for the composite with 2 and 4 wt % of GO was observed, and the film’s brittleness dramatically increased. At the same time PVA composite with 2 and 4 wt % GO equilibrated at 65% relative humidity deformed plastically and were characterized by high values of strain at break (100–190 %) and tensile energy at break. The obtained results have been analyzed taking into account the data on the effect of sorbed water on the <i>T</i><sub>g</sub> of poly(vinyl alcohol).</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 12","pages":"3324 - 3332"},"PeriodicalIF":0.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108980","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
New Niacin Derivatives Boosting with Monosaccharide: Synthesis, Structural Characterization, and Biological Evaluation 新的单糖促进烟酸衍生物：合成、结构表征和生物学评价
IF 0.9 4区 化学
Russian Journal of General Chemistry Pub Date : 2024-12-17 DOI: 10.1134/S1070363224110197
A. M. Youssef, N. A. Abdul-Rida
{"title":"New Niacin Derivatives Boosting with Monosaccharide: Synthesis, Structural Characterization, and Biological Evaluation","authors":"A. M. Youssef,&nbsp;N. A. Abdul-Rida","doi":"10.1134/S1070363224110197","DOIUrl":"10.1134/S1070363224110197","url":null,"abstract":"<p>New niacin derivatives conjugated with monosaccharides were synthesized through a series of reactions and then evaluated <i>in vitro</i> as antimicrobial and antioxidant agents. Briefly, 4bromonicotinic acid was reacted with hydrazine hydrate to give 4-bromonicotinohydrazide in a single step. Next, the derivative obtained was condensed with various monosaccharides via the Schiff base reaction. Biologically, the antioxidant activity of these compounds was investigated by phosphomolybdate test, results obtained in this test revealed encouraging activity for some of synthesized derivatives with good EC<sub>50</sub> values compared to ascorbic acid. In addition, the antimicrobial activity of synthesized derivatives showed good inhibition against both <i>C. albicans</i> and <i>E. coli</i> compared to standard drugs.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 11","pages":"2967 - 2971"},"PeriodicalIF":0.9,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844702","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
General Method for the Synthesis of New 1,3-Selenazolines from Elemental Selenium, Alkenes, and Nitriles 以单质硒、烯烃和腈为原料合成新型1,3-硒代唑啉的一般方法
IF 0.9 4区 化学
Russian Journal of General Chemistry Pub Date : 2024-12-17 DOI: 10.1134/S1070363224110112
E. O. Kurkutov, A. B. Ivanova, S. Yu. Gubal, S. V. Zinchenko, B. A. Shainyan
{"title":"General Method for the Synthesis of New 1,3-Selenazolines from Elemental Selenium, Alkenes, and Nitriles","authors":"E. O. Kurkutov,&nbsp;A. B. Ivanova,&nbsp;S. Yu. Gubal,&nbsp;S. V. Zinchenko,&nbsp;B. A. Shainyan","doi":"10.1134/S1070363224110112","DOIUrl":"10.1134/S1070363224110112","url":null,"abstract":"<p>The strategy of the synthesis of 1,3-selenazolines by the iodine-mediated reaction of elemental selenium, alkenes and acetonitrile is extended to dienes and other nitriles, and new selenazolines are obtained. Only one of the two double bonds in dienes is involved in the selenazoline ring formation. Benzo- or butyronitriles enter the reaction only when using ethyl acetate as a co-solvent.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 11","pages":"2905 - 2909"},"PeriodicalIF":0.9,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142845030","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
Design, Synthesis, and Anticancer Activity Evaluation of Novel Betulin Derivatives 新型桦木醇衍生物的设计、合成和抗癌活性评估
IF 0.9 4区 化学
Russian Journal of General Chemistry Pub Date : 2024-12-17 DOI: 10.1134/S1070363224110185
M. Bu, Y. Zhang, S. Pan, M. Zhang, X. Guo, J. Wang
{"title":"Design, Synthesis, and Anticancer Activity Evaluation of Novel Betulin Derivatives","authors":"M. Bu,&nbsp;Y. Zhang,&nbsp;S. Pan,&nbsp;M. Zhang,&nbsp;X. Guo,&nbsp;J. Wang","doi":"10.1134/S1070363224110185","DOIUrl":"10.1134/S1070363224110185","url":null,"abstract":"<p>A series of novel betulin-28-isatin hydrazone derivatives was prepared, which were evaluated for their anticancer activity. Among them, 3β-hydroxy-lup-20(29)-ene-28-[(5-bromo-1<i>H</i>-indole-2,3-dione)-3-yl]hydrazone exhibited the most potent anticancer activity against A549 cells, with an IC<sub>50</sub> value of 6.95 µM, being 3.85-fold more potent than its parental compound betulin. Meanwhile, it also exhibited a negligible anti-proliferative activity against the human normal GES-1 cells, indicating its significant selectivity in inhibiting the proliferation of cancer cells than normal cells. The further virtual screening and mechanism studies suggested that this compound exerts its anticancer activity through the inhibition of PI3K-Akt signaling pathway. In summary, 3β-hydroxy-lup-20(29)-ene-28-[(5-bromo-1<i>H</i>-indole-2,3-dione)-3-yl]hydrazone can be used as a valuable skeleton for developing novel anticancer agents.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 11","pages":"2957 - 2966"},"PeriodicalIF":0.9,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844701","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 of 3-Chloro-6-(4-chloro-3,5-dimethyl-1H-pyrazol-1-yl)pyridazine and Its Deuterated Analogue 3-氯-6-(4-氯-3,5-二甲基-1H-吡唑-1-基)哒嗪及其氘代类似物的合成
IF 0.9 4区 化学
Russian Journal of General Chemistry Pub Date : 2024-12-17 DOI: 10.1134/S1070363224110033
M. S. Ledovskaya, V. V. Voronin
{"title":"Synthesis of 3-Chloro-6-(4-chloro-3,5-dimethyl-1H-pyrazol-1-yl)pyridazine and Its Deuterated Analogue","authors":"M. S. Ledovskaya,&nbsp;V. V. Voronin","doi":"10.1134/S1070363224110033","DOIUrl":"10.1134/S1070363224110033","url":null,"abstract":"<p>The synthesis of 3-chloro-6-(4-chloro-3,5-dimethyl-1<i>H</i>-pyrazol-1-yl)pyridazine and its deuterated analogue was performed using a novel two-step sequence. On the first step, a double chlorination of 3-(3,5-dimethyl-1<i>H</i>-pyrazol-1-yl)-6-hydrazinyl-1,2,4,5-tetrazine with trichloroisocyanuric acid was performed to synthesize 3-chloro-6-(4-chloro-3,5-dimethyl-1<i>H</i>-pyrazol-1-yl)-1,2,4,5-tetrazine for the first time. The latter reacted with calcium carbide-derived acetylene and D<sub>2</sub>-acetylene at heating in a two-chamber reactor (COware) producing 3-chloro-6-(4-chloro-3,5-dimethyl-1<i>H</i>-pyrazol-1-yl)pyridazine or 3-chloro-6-(4-chloro-3,5-dimethyl-1<i>H</i>-pyrazol-1-yl)-4,5-dideuteropyridazine respectively in quantitative yields.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 11","pages":"2833 - 2840"},"PeriodicalIF":0.9,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844932","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
Impact of Graphene Oxide Nanoparticles on Cement Mortar: Mechanical, Microstructure and Durability Properties 氧化石墨烯纳米颗粒对水泥砂浆的影响：机械、微观结构和耐久性能
IF 0.9 4区 化学
Russian Journal of General Chemistry Pub Date : 2024-12-17 DOI: 10.1134/S1070363224110173
P. V. Reshma Raj, S. Judes Sujatha
{"title":"Impact of Graphene Oxide Nanoparticles on Cement Mortar: Mechanical, Microstructure and Durability Properties","authors":"P. V. Reshma Raj,&nbsp;S. Judes Sujatha","doi":"10.1134/S1070363224110173","DOIUrl":"10.1134/S1070363224110173","url":null,"abstract":"<p>Nano materials, particularly carbon base always get more attention from the researchers in the domain on cement and its application. The most prevalent additives in cementitious composites are graphene and other carbon-based derivative. This research examines the impact of Graphene Oxide (GO) on cement mortar, with GO added at ratios ranging from 0.01 to 0.05% by weight of the cement, in intervals of 0.01%. The 1 : 1.5 mortar with water cement ratio (w/c) of 0.5 is constant for all the mixers. The fresh property like flowability and initial setting time were examined, the result indicates that the GO-reinforcement affect the initial setting time (about 10–24%) as well as reduces the flowability (up to 35%). The mechanical test result revealed that the GO inclusion substantially improved both flexural and compressive strength for 30 and 55% respectively at the dosage of 0.03% by the weight of cement. Meanwhile the SEM analysis showed that the GO addition enhances the microstructure as well as reduces the pore size. The durability properties as evaluated using water absorption and a rapid chloride penetration test revealed that GO incorporated specimen exhibits better resistance rather than control specimens with the highest resistance achieved on 0.05% dosage samples. However, beyond the optimum amount of GO dosage, agglomeration occurs thus leading to the reduction in strength and affecting the micro structure. In general, the study revealed that graphene oxide (GO) might have one of the potential nano additives to enhance the mechanical and durability of cement composites.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 11","pages":"2945 - 2956"},"PeriodicalIF":0.9,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844678","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
Photophysical Properties of Hybrid Nanoparticles Based on Water-Soluble Porphyrin, Gold Core, and Polymer Shell 水溶性卟啉、金核和聚合物壳复合纳米粒子的光物理性质
IF 0.9 4区 化学
Russian Journal of General Chemistry Pub Date : 2024-12-17 DOI: 10.1134/S1070363224110252
A. V. Povolotskiy, D. A. Soldatova, A. A. Smirnov, A. V. Povolotckaia, D. A. Lukyanov, A. S. Konev, E. V. Solovyeva
{"title":"Photophysical Properties of Hybrid Nanoparticles Based on Water-Soluble Porphyrin, Gold Core, and Polymer Shell","authors":"A. V. Povolotskiy,&nbsp;D. A. Soldatova,&nbsp;A. A. Smirnov,&nbsp;A. V. Povolotckaia,&nbsp;D. A. Lukyanov,&nbsp;A. S. Konev,&nbsp;E. V. Solovyeva","doi":"10.1134/S1070363224110252","DOIUrl":"10.1134/S1070363224110252","url":null,"abstract":"<p>Hybrid nanostructures have found wide application in various fields of science, medicine, industry, etc. due to the unique possibilities of controlling their functional properties by combining the properties of components or as a result of a synergistic effect. In this work, hybrid core-shell nanoparticles based on gold spherical cores and a polymer shell with controlled thickness were synthesized. Metallic nanoparticles were obtained by laser ablation in water, which allows obtaining nanoparticles with the highest chemical purity. The shell was formed layer by layer using polymers in cationic and anionic forms, which allows for precise control of its thickness. A water-soluble porphyrin was electrostatically attached to the polymer shell and used in the molecular plasmonic hybrid as a photo-excitable agent. The photophysical properties of the obtained hybrid nanostructures were investigated. The effect of enhancing the photoluminescence of porphyrin by 16 times due to the plasmonic core with a shell thickness of 1.5 nm was obtained. The influence of the polymer shell thickness on the efficiency of photoinitiated generation of singlet oxygen forms was established. The using of hybrid molecular-plasmonic nanostructures as luminescent thermometers was assessed.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 11","pages":"3023 - 3032"},"PeriodicalIF":0.9,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844756","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 Biological Properties of Hybrid Compounds Based on Nitrogen-Containing Heterocycles and 1,5-Disubstituted 3,7-Diazabicyclo[3.3.1]nonan-9-ones 基于含氮杂环和 1,5-二取代 3,7-二氮杂双环[3.3.1]壬烷-9-酮的杂化化合物的合成及其生物学特性
IF 0.9 4区 化学
Russian Journal of General Chemistry Pub Date : 2024-12-17 DOI: 10.1134/S107036322411001X
A. A. Harutyunyan, S. G. Israelyan, M. R. Hakobyan, M. S. Safaryan, R. A. Madoyan, A. G. Sukiasyan, K. A. Gevorkyan, A. D. Harutyunyan, A. S. Sargsyan, A. A. Hambardzumyan, H. A. Karapetyan, A. A. Mnatsakanyan, H. A. Panosyan, M. Yu. Danghyan, S. P. Gasparyan
{"title":"Synthesis and Biological Properties of Hybrid Compounds Based on Nitrogen-Containing Heterocycles and 1,5-Disubstituted 3,7-Diazabicyclo[3.3.1]nonan-9-ones","authors":"A. A. Harutyunyan,&nbsp;S. G. Israelyan,&nbsp;M. R. Hakobyan,&nbsp;M. S. Safaryan,&nbsp;R. A. Madoyan,&nbsp;A. G. Sukiasyan,&nbsp;K. A. Gevorkyan,&nbsp;A. D. Harutyunyan,&nbsp;A. S. Sargsyan,&nbsp;A. A. Hambardzumyan,&nbsp;H. A. Karapetyan,&nbsp;A. A. Mnatsakanyan,&nbsp;H. A. Panosyan,&nbsp;M. Yu. Danghyan,&nbsp;S. P. Gasparyan","doi":"10.1134/S107036322411001X","DOIUrl":"10.1134/S107036322411001X","url":null,"abstract":"<p>The reaction of aromatic aldehydes and 3-(heteryl)methyl-4-methoxybenzaldehydes with 1,5-disubstituted 3,7-diazabicyclo[3.3.1]nonan-9-ones afforded 2-aryl(hetaryl)-5,7-dimethyl-1,3-diazaadaman­tane-6-ones. 3-(Heteryl)methyl-4-methoxybenzaldehydes were obtained by alkylation of nitrogen-containing heterocycles (<i>N</i><sup>1</sup>-functionalized uracil and 5-halouracils, <i>N</i><sup>3</sup>-functionalized 6-methylpyrimidin- and quinazolin-4(3<i>H</i>)-ones, benzotriazole, quinoline, benzoxazole) with 3-chloromethyl-4-methoxylbenzaldehyde. Antibacterial and fungicidal properties of the synthesized compounds were studied.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 11","pages":"2809 - 2823"},"PeriodicalIF":0.9,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844923","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
Design and Synthesis of Novel 3β-O-Succinyl-lupeol and 3β-O-Maleicyl-lupeol Derivatives as Potential Antitumor Agents 新型抗肿瘤药物3β- o -琥珀酰-lupeol和3β- o -马来酰-lupeol衍生物的设计与合成
IF 0.9 4区 化学
Russian Journal of General Chemistry Pub Date : 2024-12-17 DOI: 10.1134/S1070363224110203
Z. X. Chen, T. C. Xu, R. Luo, J. Song, H. X. Cui, X. Hong, Y. L. Han, M. Wang, M. Bu
{"title":"Design and Synthesis of Novel 3β-O-Succinyl-lupeol and 3β-O-Maleicyl-lupeol Derivatives as Potential Antitumor Agents","authors":"Z. X. Chen,&nbsp;T. C. Xu,&nbsp;R. Luo,&nbsp;J. Song,&nbsp;H. X. Cui,&nbsp;X. Hong,&nbsp;Y. L. Han,&nbsp;M. Wang,&nbsp;M. Bu","doi":"10.1134/S1070363224110203","DOIUrl":"10.1134/S1070363224110203","url":null,"abstract":"<p>Lupeol is a natural pentacyclic triterpenoid with a wide range of biological activities. To enhance the antitumor efficacy of lupeol, eight lupeol-3-succinate derivatives and seven lupeol-3-maleate derivatives were designed and synthesized. The new compounds were evaluated for their cytotoxic activities against human lung cancer A549 cell line, human liver cancer HepG2 cell line, and human breast cancer MCF-7 cell line. All compounds were found to show better cytotoxic activity <i>in vitro</i> than lupeol. Among them, lup-20(29)-en-3β-yl 4-oxo-4-(pyrrolidin-1-yl)butanoate displayed remarkable cytotoxic activity against lung cancer A549 cells, with an IC<sub>50</sub> of 2.33 μM, and potently induced apoptosis in lung cancer A549 cells. The mechanism of action of lup-20(29)-en-3β-yl 4-oxo-4-(pyrrolidin-1-yl)butanoate can be subjected to further evaluation. It has potential to become a novel anti-tumor agent through further structural modification.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 11","pages":"2972 - 2983"},"PeriodicalIF":0.9,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844703","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
Role of Bulky Substituents in the Mutual Influence of Metal Centers in a Binuclear Copper Complex with a Ditopic Di-o-quinone Ligand 大体积取代基在双核铜配合物中金属中心相互影响中的作用
IF 0.9 4区 化学
Russian Journal of General Chemistry Pub Date : 2024-12-17 DOI: 10.1134/S1070363224110148
A. V. Cherkasova, A. V. Cherkasov, K. A. Martyanov, V. A. Kuropatov
{"title":"Role of Bulky Substituents in the Mutual Influence of Metal Centers in a Binuclear Copper Complex with a Ditopic Di-o-quinone Ligand","authors":"A. V. Cherkasova,&nbsp;A. V. Cherkasov,&nbsp;K. A. Martyanov,&nbsp;V. A. Kuropatov","doi":"10.1134/S1070363224110148","DOIUrl":"10.1134/S1070363224110148","url":null,"abstract":"<p>The study of a binuclear copper complex, bearing a cage-like architecture, and obtained by self-assembly from a ditopic di-<i>o</i>-quinone ligand containing bulky substituents in the linker, showed that the exchange interactions characteristic of biradical forms of the free ligand are fully manifested in the obtained complex. The energy of the exchange interactions changes depending on the volume of the substituents that limit rotational vibrations around the linker bonds.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"94 11","pages":"2920 - 2926"},"PeriodicalIF":0.9,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844755","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
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