A. S. Kubasov, A. V. Golubev, O. M. Stepanova, K. Yu. Zhizhin, N. T. Kuznetsov
{"title":"Sulfonium Derivatives of the closo-Decaborate Anion with Carbonyl Groups","authors":"A. S. Kubasov, A. V. Golubev, O. M. Stepanova, K. Yu. Zhizhin, N. T. Kuznetsov","doi":"10.1134/S0036023624602964","DOIUrl":"10.1134/S0036023624602964","url":null,"abstract":"<p>This paper presents the synthesis of sulfonium derivatives of the <i>closo</i>-decaborate anion with <i>exo</i>-polyhedral carbonyl groups [B<sub>10</sub>H<sub>9</sub>S(CH<sub>2</sub>C(=O)R)<sub>2</sub>]<sup>–</sup> (R = Me, Ph, <i>p</i>-C<sub>6</sub>H<sub>4</sub>Cl, Nh). The composition and structure have been confirmed by elemental analysis, <sup>11</sup>B, <sup>1</sup>H, and <sup>13</sup>C NMR spectroscopies. Crystal packings and intermolecular interactions for compounds Bu<sub>4</sub>N[2-B<sub>10</sub>H<sub>9</sub>S(CH<sub>2</sub>COMe)<sub>2</sub>] and [Ag(PPh<sub>3</sub>)<sub>4</sub>][2-B<sub>10</sub>H<sub>9</sub>S(CH<sub>2</sub>COC<sub>6</sub>H<sub>4</sub>Cl)<sub>2</sub>] have been studied using single crystal X-ray diffraction and Hirschfeld surface analysis of the anions.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 14","pages":"2065 - 2073"},"PeriodicalIF":1.8,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553963","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. I. Ril’, A. A. Bikteev, M. Jaloliddinzoda, S. F. Marenkin
{"title":"Synthesis and Physicochemical, Electrical and Magnetic Properties of Bulk and Film Samples of Ferromagnetic MnSb (Review)","authors":"A. I. Ril’, A. A. Bikteev, M. Jaloliddinzoda, S. F. Marenkin","doi":"10.1134/S0036023624603064","DOIUrl":"10.1134/S0036023624603064","url":null,"abstract":"<p>The article presents a review of research focused on the synthesis, crystalline and band structures, magnetic and electrophysical properties, and applications of the soft magnetic ferromagnet MnSb, which is characterized by a high Curie temperature. In analyzing the presented data, the authors adhered to the core concept of physicochemical analysis of the composition–structure–properties relationship.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 14","pages":"2140 - 2150"},"PeriodicalIF":1.8,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553962","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}
G. S. Taran, E. D. Sheichenko, M. A. Popkov, K. N. Novoselova, Yu. A. Kochenkova, A. D. Filippova, A. E. Baranchikov, V. K. Ivanov
{"title":"Hydrothermal Synthesis of Aqueous Sols of Lactic Acid-Stabilized Nanocrystalline Hafnium Dioxide and Their Enzyme-Like Activity","authors":"G. S. Taran, E. D. Sheichenko, M. A. Popkov, K. N. Novoselova, Yu. A. Kochenkova, A. D. Filippova, A. E. Baranchikov, V. K. Ivanov","doi":"10.1134/S0036023624602927","DOIUrl":"10.1134/S0036023624602927","url":null,"abstract":"<p>A method was developed to produce aqueous sols of nanocrystalline hafnium dioxide (with a hydrodynamic diameter of 20–35 nm), which were stabilized by lactic acid (lactate ions) and characterized by high colloidal stability (ζ-potential –29 mV). The method is based on hydrothermal treatment of a preliminarily obtained complex compound of hafnium with lactic acid in the presence of urea at temperatures of 180 and 220°C for 48 and 96 h. Chemiluminescent analysis in a model reaction of luminol oxidation determined that nanocrystalline hafnium oxide in the sols exhibits dose-dependent prooxidant activity toward hydrogen peroxide and thus has peroxidase-like properties.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 14","pages":"2099 - 2108"},"PeriodicalIF":1.8,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554013","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. Guskov, P. G. Gagarin, V. N. Guskov, K. S. Gavrichev
{"title":"Synthesis and Thermodynamic Functions of Erbium Titanate at 2–1900 K","authors":"A. V. Guskov, P. G. Gagarin, V. N. Guskov, K. S. Gavrichev","doi":"10.1134/S0036023624602538","DOIUrl":"10.1134/S0036023624602538","url":null,"abstract":"<p>Erbium titanate was synthesized by the coprecipitation of erbium and titanium hydroxides followed by high-temperature annealing. The temperature intervals of the formation sequence of the pyrochlore-type crystal structure were determined. The isobaric heat capacity of erbium titanate in the range 2–1870 K was measured by relaxation calorimetry, adiabatic calorimetry, and differential scanning calorimetry. The smoothed heat capacity values were used to calculate the entropy and enthalpy increment in the range 0–1900 K, evaluate the contribution of the Schottky anomaly at temperatures up to 300 K, and calculate the Gibbs free energy of erbium titanate formation at 298.15 K.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 11","pages":"1707 - 1717"},"PeriodicalIF":1.8,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521773","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. F. Galimova, K. A. Burdina, A. B. Dobrynin, A. P. Lyubina, A. D. Voloshina, F. R. Garieva, E. I. Musina, A. A. Karasik
{"title":"Synthesis, Structures, and Bioactivity of Silver(I) Nitrate Complexes Based on 10-(Aryl)Phenoxarsines","authors":"M. F. Galimova, K. A. Burdina, A. B. Dobrynin, A. P. Lyubina, A. D. Voloshina, F. R. Garieva, E. I. Musina, A. A. Karasik","doi":"10.1134/S0036023624602836","DOIUrl":"10.1134/S0036023624602836","url":null,"abstract":"<p>Silver(I) nitrate complexes [(L)<sub>3</sub>Ag(NO<sub>3</sub>)] have been synthesized by the reactions of AgNO<sub>3</sub> with 10-(aryl)phenoxarsines (L) in ethanol. The structures of complexes are elucidated by spectral methods and X-ray diffraction. All complexes demonstrate moderate to enhanced antimicrobial activity against both Gram-positive and Gram-negative bacteria, fungi as well as cytotoxicity against human cervix epithelioid carcinoma (M-HeLa) and human duodenal adenocarcinoma (HuTu 80) cell lines.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 14","pages":"2038 - 2046"},"PeriodicalIF":1.8,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554051","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. O. Koroleva, E. V. Boyarintseva, S. I. Stepanov
{"title":"Separation of Rare-Earth Elements by Synergistic Mixtures of Methyl(tri-n-Octyl)ammonium Nitrate and an Ammonium Di(2-Ethylhexyl)phosphoric Acid Salt","authors":"E. O. Koroleva, E. V. Boyarintseva, S. I. Stepanov","doi":"10.1134/S0036023624601740","DOIUrl":"10.1134/S0036023624601740","url":null,"abstract":"<p>The separation of medium-heavy group of rare-earth elements along the Gd/Tb line by liquid–liquid extraction from low-acid nitrate solutions was studied. A synergistic mixture of methyl(tri-<i>n</i>-octyl)ammonium nitrate (TOMAN) and an ammonium di(2-ethylhexyl)phosphoric acid salt (Amm-HD2EHP) was used as an extractant. The synergistic extraction area was determined using the isomolar series method. Gel formation was observed in extraction with the mixed extractants and with an individual ammonium salt of di(2-ethylhexyl)phosphoric acid (Amm-HD2EHP) at salt concentrations higher than 0.25 mol/L. In the area of system’s stability, the highest separation factor along the Gd/Tb line was higher than 3.8. <i>n</i>-Octanol (OC) and tri-<i>n</i>-butyl phosphate (TBP) were used as modifiers to prevent gel formation.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 11","pages":"1737 - 1743"},"PeriodicalIF":1.8,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521756","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. E. Putkov, Yu. A. Teterin, M. N. Smirnova, E. S. Romanova, G. E. Nikiforova, Yu. A. Teterin Jr, A. L. Trigub, V. A. Ketsko
{"title":"Analysis of Ion and Phase Composition of Ferrogranate Y2.5Ce0.5Fe2.5Ga2.5O12 by XANES, X-ray Powder Diffraction, and X-ray Photoelectron Spectroscopy Methods","authors":"A. E. Putkov, Yu. A. Teterin, M. N. Smirnova, E. S. Romanova, G. E. Nikiforova, Yu. A. Teterin Jr, A. L. Trigub, V. A. Ketsko","doi":"10.1134/S0036023624603155","DOIUrl":"10.1134/S0036023624603155","url":null,"abstract":"<p>The ionic composition of ferrogranate powder samples of composition Y<sub>2.5</sub>Ce<sub>0.5</sub>Fe<sub>2.5</sub>Ga<sub>2.5</sub>O<sub>12</sub> obtained by gel combustion followed by crystallization at 750°С in a furnace for 5 h at a pressure of ≈ 1 × 10<sup>–2</sup> Pa has been studied by XANES method. The results are compared with the X-ray powder diffraction and X-ray photoelectron spectroscopy (XPS) data obtained by the authors earlier. It is shown that according to X-ray powder diffraction data, ferrogranate Y<sub>2.5</sub>Ce<sub>0.5</sub>Fe<sub>2.5</sub>Ga<sub>2.5</sub>O<sub>12</sub> is single-phase, but according to the results of XANES and XPS, spectroscopy along with Ce<sup>3+</sup> in the sample Ce<sup>4+</sup> is present both in the volume and on the surface of crystallites.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 14","pages":"2118 - 2123"},"PeriodicalIF":1.8,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554081","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":"Doped Lithium Titanates and their Composites with Carbon Nanotubes as Anodes for Lithium-Ion Batteries","authors":"I. A. Stenina, T. L. Kulova, A. B. Yaroslavtsev","doi":"10.1134/S0036023624601855","DOIUrl":"10.1134/S0036023624601855","url":null,"abstract":"<p>Lithium titanates Li<sub>4+<i>x</i></sub>Ti<sub>5–<i>x</i></sub>M<sub><i>x</i></sub>O<sub>12</sub> (M = Sc, Ga, Al, Cr; <i>x</i> = 0, 0.05, 0.1, 0.15) and their composites with carbon nanotubes were synthesized by the sol–gel method and characterized using X-ray powder diffraction, scanning electron microscopy, impedance spectroscopy, and <sup>7</sup>Li MAS NMR spectroscopy; their electrochemical performance was studied. Doping with trivalent cations leads to a decrease in the mobility of lithium ions in Li<sub>4+<i>x</i></sub>Ti<sub>5–<i>x</i></sub>M<sub><i>x</i></sub>O<sub>12</sub>, which indicates that lithium transport through vacancies predominates in these materials. The best electrochemical characteristics were found for the Li<sub>4+<i>x</i></sub>Ti<sub>5–<i>x</i></sub>M<sub><i>x</i></sub>O<sub>12</sub> composites with carbon nanotubes.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 11","pages":"1762 - 1769"},"PeriodicalIF":1.8,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521758","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}
L. O. Kozlova, I. L. Voroshilov, Yu. V. Ioni, Yu. D. Ivakin, I. V. Kozerozhets, M. G. Vasiliev
{"title":"Low-temperature Synthesis of Highly Dispersed Barium Aluminate","authors":"L. O. Kozlova, I. L. Voroshilov, Yu. V. Ioni, Yu. D. Ivakin, I. V. Kozerozhets, M. G. Vasiliev","doi":"10.1134/S0036023624602071","DOIUrl":"10.1134/S0036023624602071","url":null,"abstract":"<p>A new approach for the low-temperature synthesis of highly dispersed barium aluminate of vermicular morphology with specified characteristics (bulk density from 0.015 g/cm<sup>3</sup>, average particle size in the range of 15–87 nm) has been developed. The synthesis technique includes sequential heat treatment of a concentrated aqueous solution of BaCl<sub>2</sub>, Al(NO<sub>3</sub>)<sub>3</sub>, (NH<sub>2</sub>)<sub>2</sub>CO, and C<sub>6</sub>H<sub>8</sub>O<sub>7</sub> up to 1200°C. Using physicochemical research methods, including IR spectroscopy, X-ray powder diffraction, transmission and scanning electron microscopy, as well as chemical analysis, the main stages of the synthesis of BaAl<sub>2</sub>O<sub>4</sub> are characterized.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 11","pages":"1619 - 1625"},"PeriodicalIF":1.8,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521759","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}
Jia-Yue Wang, Yan Chen, Sen-Jian Han, Ya-Fei Guo, Shi-Qiang Wang
{"title":"Solid–Liquid Phase Equilibria in Ternary Aqueous Systems (LiB5O8 + KB5O8 + H2O) and (LiB5O8 + NaB5O8 + H2O) at 288.15 K and 0.1 MPa","authors":"Jia-Yue Wang, Yan Chen, Sen-Jian Han, Ya-Fei Guo, Shi-Qiang Wang","doi":"10.1134/S0036023624602861","DOIUrl":"10.1134/S0036023624602861","url":null,"abstract":"<p>To achieve efficient separation of alkali metal borate resources from the brines of the salt lake to provide a theoretical basis, this paper adopts the isothermal dissolution equilibrium method to study the solid-liquid phase equilibrium and phase diagram of the ternary system (LiB<sub>5</sub>O<sub>8</sub> + KB<sub>5</sub>O<sub>8</sub> + H<sub>2</sub>O) and (LiB<sub>5</sub>O<sub>8</sub> + NaB<sub>5</sub>O<sub>8</sub> + H<sub>2</sub>O) at 288.15 K. The study grasps the changing law of solubility and physicochemical properties of the system, as well as analyses and identifies the solid phase in stable equilibrium. The results show that the stable phase diagrams of the two ternary systems at 288.15 K are of the simple eutectic type, containing one invariant point, two univariate saturated solubility curves, and two crystalline regions. Among them, the crystalline region of LiB<sub>5</sub>O<sub>8</sub>·5H<sub>2</sub>O is the smallest, indicating that it is not easy to precipitate from the saturated liquid phase, and the density and refractive index curves of each system show regular changes with the increase of LiB<sub>5</sub>O<sub>8</sub> content.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 14","pages":"2124 - 2130"},"PeriodicalIF":1.8,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554033","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}