{"title":"Highly Stable MOF-76(Sm) Luminescence Sensor for Efficient Identification of D2O and H2O","authors":"Yu Zang, Yaochi Wang, Siyi Wang, Ziyang Wang, Xiangjian Meng, Shaozu Xu, Wei Liu, Suwen Chen, Baoliang Ma","doi":"10.1134/S0036023626600644","DOIUrl":"10.1134/S0036023626600644","url":null,"abstract":"<p>Heavy water (D<sub>2</sub>O) is an essential solvent with extensive applications, notably as a neutron moderator in nuclear reactors, and plays a vital role in the fields of nuclear energy production and chemical analysis. Nevertheless, the strong interaction between H<sub>2</sub>O and D<sub>2</sub>O leads to the pronounced hygroscopic nature of D<sub>2</sub>O, and the significant similarities in their physical and chemical properties further complicate the distinction between these two substances. Consequently, it is imperative to develop a methodology for the detection of D<sub>2</sub>O content in H<sub>2</sub>O. In this work, we synthesized a water-stable MOF-76(Sm) luminescent sensor with lanthanide metal Sm and 1,3,5-benzenetricarboxylate anion. The Sm<sup>3+</sup> ions in the MOF-76(Sm) can be effectively sensitized by the ligand and show a good luminescence response to the D<sub>2</sub>O–H<sub>2</sub>O system. Compared with the O–H bond of water, MOF-76(Sm) has a smaller vibration quenching of Sm<sup>3+</sup> ions by the O–D bond of heavy water, which leads to the enhancement of the luminescence of D<sub>2</sub>O, and realizes the quantitative detection of D<sub>2</sub>O content in H<sub>2</sub>O. A series of experiments have demonstrated that this sensing material exhibits a robust fluorescence response across the entire range of the D<sub>2</sub>O–H<sub>2</sub>O system, enabling the quantitative detection of D<sub>2</sub>O in H<sub>2</sub>O. Furthermore, the material can be recycled and reused, underscoring its practical application value. The MOF-76(Sm) is expected to function as a precise, sensitive, and comprehensive quantitative instrument for evaluating the D<sub>2</sub>O content in water systems, all while ensuring its recyclability. This study offers empirical support for the advancement and utilization of the lanthanide element samarium, as well as for the broader application of current metal-organic framework (MOF) materials.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 9","pages":"1224 - 1232"},"PeriodicalIF":1.5,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. A. Tikhonova, V. V. Avdeeva, A. S. Kubasov, L. V. Goeva, N. T. Kuznetsov
{"title":"Synthesis and Structures of Cadmium(II) and Lead(II) Complexes with Azaheterocarboxylate Ligands","authors":"T. A. Tikhonova, V. V. Avdeeva, A. S. Kubasov, L. V. Goeva, N. T. Kuznetsov","doi":"10.1134/S0036023626601145","DOIUrl":"10.1134/S0036023626601145","url":null,"abstract":"<p>The complexation reactions of cadmium(II) and lead(II) nitrates with azaheterocyclic acids quinaldine-2-carboxylic HQln, quinoxaline-2-carboxylic HQox, and xanthurenic HXan in organic solvents (CH<sub>3</sub>CN, DMF, DMSO) were studied. It was found that the reactions in acetonitrile proceed with the formation of heterocyclic complex compounds [M(Qln)NO<sub>3</sub>] or [M(Qox)NO<sub>3</sub>] (M = Cd, Pb) with azaheterocarboxylate and nitrate anions as ligands. The presence of other solvents (DMF, H<sub>2</sub>O) leads to the formation of compounds with the corresponding coordinated solvent molecules. Carrying out the lead(II) complexation reaction when heating leads to the formation of complex [Pb(Qln)<sub>2</sub>]. It was found that reactions with xanthurenic acid HXan in DMSO resulted in the formation of associate HXan·DMSO as the main product. The structures of complexes [Cd(Qox)(H<sub>2</sub>O)<sub>2</sub>(NO<sub>3</sub>)]·H<sub>2</sub>O and [Pb<sub>3</sub>(Qox)<sub>4</sub>(NO<sub>3</sub>)<sub>2</sub>]·2DMF, as well as the molecular associate HXan·DMSO, were determined using X-ray diffraction. In the complexes, quinaldine-2-carboxylate acts as a bidentate N,O-ligand, and quinoxaline-2-carboxylate acts as a tridentate N,O,O-ligand.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 8","pages":"1104 - 1114"},"PeriodicalIF":1.5,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Yu. Safronova, I. A. Stenina, D. Yu. Voropaeva, A. B. Yaroslavtsev
{"title":"Effect of Modifying Group Size and Type on the Morphological and Functional Characteristics of Hydrated Silica","authors":"E. Yu. Safronova, I. A. Stenina, D. Yu. Voropaeva, A. B. Yaroslavtsev","doi":"10.1134/S0036023626601492","DOIUrl":"10.1134/S0036023626601492","url":null,"abstract":"<p>Materials based on hydrated silica containing organic groups of varying nature and size were obtained, including hydrophobic hydrocarbon groups (vinyl- and dodecyl-) and fluorine-containing groups (3,3,3-fluoropropyl- and 1H, 1H, 2H, 2H-perfluorodecyl-), as well as hydrocarbon groups containing proton-acceptor groups (3-aminopropyl- and 3-(phenylamino)propyl-). The thermal stability of the resulting materials was demonstrated up to temperatures of 300°C. The introduction of small hydrophobic fragments onto the silica surface provides highly dispersed materials with specific surface areas reaching up to 675 m<sup>2</sup>/g. Increasing the size of the hydrocarbon or perfluorinated groups leads to the formation of superhydrophobic materials exhibiting water contact angles as high as 174°. It was shown that the incorporation of silica modified with 1H, 1H, 2H, 2H-perfluorodecyl groups into a styrene–ethylene–butylene–styrene block copolymer matrix enhances the hydrophobicity of the resulting films from 105° to 137°.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 8","pages":"1167 - 1175"},"PeriodicalIF":1.5,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pyridine-Calix[4]Arene Hydroxamic Acid for Extraction, Preconcentration, and Determination of Trace Niobium(V) and Tantalum(V)","authors":"Devarshi Thaker, Bignesh Thakur, Nirav Pandya, Haresh Patel, Yadvendra Agrawal","doi":"10.1134/S0036023626600905","DOIUrl":"10.1134/S0036023626600905","url":null,"abstract":"<p>A pyridine-calix[4]arene hydroxamic acid ligand, 5,17-dinitro-25,26,27,28-tetrahydroxy-11,23-calix[4]arene-<i>bis</i>[pyridyl hydroxamic acid] (PC4AHA), was evaluated as an analytical reagent for the extraction, preconcentration, sequential separation, and trace determination of niobium(V) and tantalum(V) from hydrochloric acid media. The method was optimized with respect to HCl concentration, ligand concentration, solvent, phase-volume ratio, shaking time, and matrix-ion tolerance. Niobium(V) was quantitatively extracted from 10 M HCl into <i>n</i>-octanol, whereas tantalum(V) was quantitatively extracted from 8 M HCl into dichloromethane. The Nb(V)-PC4AHA and Ta(V)-PC4AHA complexes showed maximum absorbance at 352 and 390 nm, with molar absorptivities of 1.90 × 10<sup>5</sup> and 8.74 × 10<sup>5</sup> L mol<sup>–1</sup> cm<sup>–1</sup>, respectively. The spectrophotometric limits of detection were 0.099 and 0.033 μg mL<sup>–1</sup> for Nb(V) and Ta(V), and the corresponding limits of quantification were 0.30 and 0.10 μg mL<sup>–1</sup>. Direct ICP-MS measurement of the organic extracts provided ng mL<sup>–1</sup>-level confirmation. Sequential extraction enabled the determination of Nb(V) and Ta(V) in mixed solutions and in reference materials with recoveries close to 100%. The work supports the use of PC4AHA as a selective analytical ligand for trace Nb and Ta determination, while applications to rare-earth- or actinide-rich matrices require additional validation.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 8","pages":"1158 - 1166"},"PeriodicalIF":1.5,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. V. Egorysheva, E. F. Popova, D. V. Kombanaki, A. G. Son, E. S. Kulikova
{"title":"Synthesis, Structure, and Luminescent Properties of a New Phosphor Y2GaTaO7: Sm3+","authors":"A. V. Egorysheva, E. F. Popova, D. V. Kombanaki, A. G. Son, E. S. Kulikova","doi":"10.1134/S0036023626601522","DOIUrl":"10.1134/S0036023626601522","url":null,"abstract":"<p>Y<sub>2</sub>GaTaO<sub>7</sub> complex oxide and a series of (Y<sub>1–<i>x</i></sub>Sm<sub><i>x</i></sub>)<sub>2</sub>GaTaO<sub>7</sub> solid solutions were synthesized by the citrate method for the first time. The samples were studied by X-ray diffraction of synchrotron radiation, scanning electron microscopy, diffuse reflection, and photoluminescence. All synthesized compounds have a layered pyrochlore-like structure (space group <i>R</i><span>(bar {3})</span>). Y<sub>2</sub>GaTaO<sub>7</sub> is a self-activated phosphor that exhibits a wide emission band with a maximum at 455 nm. The origin of the self-luminescence in Y<sub>2</sub>GaTaO<sub>7</sub> is attributed to electron transitions in TaO<sub>6</sub> and GaO<sub>6</sub> groups. (Y<sub>1–<i>x</i></sub>Sm<sub><i>x</i></sub>)<sub>2</sub>GaTaO<sub>7</sub> phosphors exhibit bright orange-red radiation under excitation at near-UV light. Their emission spectrum contains bands associated with both the host-luminescence and the <i>f</i>–<i>f</i>-transitions of Sm<sup>3+</sup> ions. Concentration quenching of Sm<sup>3+</sup> luminescence in (Y<sub>1–<i>x</i></sub>Sm<sub><i>x</i></sub>)<sub>2</sub>GaTaO<sub>7</sub> is observed at an activator content >7 mol %. Due to the energy transfer from TaO<sub>6</sub> and GaO<sub>6</sub> to Sm<sup>3+</sup> ions, it is possible to change the luminescence spectrum of the phosphor by varying the Sm<sup>3+</sup>concentration.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 8","pages":"1087 - 1093"},"PeriodicalIF":1.5,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhengqing Tang, Xin Yan, Lei Wu, Wujiu Jiang, Yuxing Tan
{"title":"Synthesis, Characterization, and In Vitro Cancer Cell Inhibitory Activity of Two Trialkyltin Carboxylates","authors":"Zhengqing Tang, Xin Yan, Lei Wu, Wujiu Jiang, Yuxing Tan","doi":"10.1134/S0036023626600632","DOIUrl":"10.1134/S0036023626600632","url":null,"abstract":"<p>Two trialkyltin carboxylates (<b>C1</b>, <b>C2</b>) have been synthesized by the reaction of 3-(1,3-dioxo-1<i>H</i>-benzo[de]isoquinolin-2(3<i>H</i>)-yl)propanoic acid ligand (<b>HL</b>) with tributyltin oxide or bis[tris(2-methyl-2-phenylpropyl)tin oxide, respectively. The structures were characterized by elemental analysis, IR, <sup>1</sup>H, <sup>13</sup>C NMR spectroscopies, and X-ray crystal diffraction. Crystal structure analysis reveals that complex <b>C1</b> adopts a five-coordinated trigonal bipyramidal configuration, while complex <b>C2</b> features a four-coordinated tetrahedral geometry. These two complexes further expand into supramolecular structures through intermolecular interactions. The thermogravimetric analysis indicates that complexes <b>C1</b> and <b>C2</b> possess good thermal stability below 200 and 300°C, respectively. In vitro cancer cell growth inhibitory activity reveals that tributyltin complex <b>C1</b> demonstrates superior potency across all tested cancer cell lines.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 8","pages":"1094 - 1103"},"PeriodicalIF":1.5,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. U. Kuyliyeva, K. A. Turayev, R. S. Jurayev, S. Khojanazarova, D. A. Shokirova, E. S. Khusanov, B. Sh. Khudoyberdiyev, Zh. Sh. Bobojonov, D. N. Makhkamova, A. A. Sidikov, Zh. S. Shukurov, B. Kucharov, A. S. Togasharov
{"title":"Study of Solubility of Components in the NaClO3–C2H5COCSSNa–H2O System","authors":"D. U. Kuyliyeva, K. A. Turayev, R. S. Jurayev, S. Khojanazarova, D. A. Shokirova, E. S. Khusanov, B. Sh. Khudoyberdiyev, Zh. Sh. Bobojonov, D. N. Makhkamova, A. A. Sidikov, Zh. S. Shukurov, B. Kucharov, A. S. Togasharov","doi":"10.1134/S0036023626600449","DOIUrl":"10.1134/S0036023626600449","url":null,"abstract":"<p>The ternary NaClO<sub>3</sub>–C<sub>2</sub>H<sub>5</sub>COCSSNa–H<sub>2</sub>O system was investigated in detail from a physicochemical perspective. During the study, the system was subdivided into binary subsystems and analyzed along six internal sections. Polythermal solubility data were obtained over the temperature range from –23.2 to 38.0°C, and a comprehensive polythermal solubility diagram of the system was constructed. The resulting diagram provides a complete representation of the temperature-dependent solubility behavior of the system components. Based on the constructed phase diagram, the crystallization fields of ice, NaClO<sub>3</sub>, and C<sub>2</sub>H<sub>5</sub>COCSSNa were identified, and the boundaries between them were established. The results indicate that the system belongs to a simple eutonic type. This behavior demonstrates that the components crystallize independently without undergoing mutual chemical interaction, thereby preserving their individual identities. Furthermore, both salts exhibit high solubility in water, and the formation of stable solutions over a wide concentration range was observed within the system. Along the [40% NaClO<sub>3</sub> + 60% H<sub>2</sub>O]–[C<sub>2</sub>H<sub>5</sub>COCSSNa] section, the physicochemical properties of solutions prepared at various ratios were comprehensively analyzed. In particular, the crystallization temperature, viscosity, density, pH of the medium, and refractive index were determined as functions of composition. The results demonstrated that variations in component concentration significantly influence the structural state of the solutions. Based on the experimental data obtained, a “composition–property” diagram was constructed. This diagram clearly illustrates the relationship between solution composition and its physicochemical properties and plays an important role in evaluating the practical application potential of the system. The findings may serve as both a theoretical and practical basis for the application of aqueous systems based on NaClO<sub>3</sub> and C<sub>2</sub>H<sub>5</sub>COCSSNa in technological processes.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 8","pages":"1144 - 1150"},"PeriodicalIF":1.5,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. G. Frolova, A. S. Lysenkov, K. A. Kim, M. D. Melnikov, V. V. Zakorzhevsky, Yu. F. Kargin
{"title":"A Layered Silicon-Carbide Composite: Structural Features and Main Properties","authors":"M. G. Frolova, A. S. Lysenkov, K. A. Kim, M. D. Melnikov, V. V. Zakorzhevsky, Yu. F. Kargin","doi":"10.1134/S0036023626600838","DOIUrl":"10.1134/S0036023626600838","url":null,"abstract":"<p>A layered silicon-carbide composite is a high-performance material featuring alternating layers of monolithic and textile SiC. Textile SiC was obtained by siliconizing a carbon fabric with silicon monoxide vapor at 1500°C. Three- and five-layered of textile SiC composites were obtained by hot pressing and studied. The mechanical properties of silicon-carbide laminated composites were shown to be improved compared to unreinforced silicon-carbide ceramics. Specifically, layered silicon-carbide composites exhibit a bending strength of 530 MPa and a fracture toughness of 4470 kJ/m<sup>2</sup>. Layer-by-layer reinforcement of silicon-carbide ceramics can help enable competitive use because of enhanced strength, thermal shock resistance, and wear resistance in various promising areas of application.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 6","pages":"698 - 704"},"PeriodicalIF":1.5,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
O. V. Alekseeva, V. D. Shibaeva, A. V. Noskov, A. V. Agafonov
{"title":"Erratum to: Photocatalysts Based on Titanium Dioxide and Carbon Nitrides for Efficient Decomposition of Organic Dyes","authors":"O. V. Alekseeva, V. D. Shibaeva, A. V. Noskov, A. V. Agafonov","doi":"10.1134/S0036023626010018","DOIUrl":"10.1134/S0036023626010018","url":null,"abstract":"","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 6","pages":"867 - 867"},"PeriodicalIF":1.5,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Chemoresistive Gas Sensors based on Zinc Oxide Modified with Rare-Earth Metal Oxides: Synthesis Methods and Gas Sensitivity (A Review)","authors":"I. A. Nagornov, A. S. Mokrushin, E. P. Simonenko","doi":"10.1134/S0036023626601066","DOIUrl":"10.1134/S0036023626601066","url":null,"abstract":"<p>This review presents a survey of the literature on the synthesis, structural characterization, and chemosensing properties of nanocomposites based on zinc oxide modified with rare-earth metal oxides. The key mechanisms underlying the improvement in gas sensitivity upon the introduction of rare-earth elements are systematized. Data on the influence of the modifiers on the sensor performance parameters (sensitivity, selectivity, operating temperature, response/recovery time) in the detection of toxic gases and volatile organic compound vapors are summarized. Based on a comparative analysis, the most promising compositions for further research and practical applications in environmental monitoring systems and non-invasive medical diagnostics are identified.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 6","pages":"790 - 822"},"PeriodicalIF":1.5,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}