A. S. Kubasov, I. V. Novikov, A. V. Golubev, V. A. Mantsireva, K. Yu. Zhizhin, N. T. Kuznetsov
{"title":"Synthesis and Stability Study of Silyl Ethers of Hydroxo-closo-Dodecaborate Anion [B12H11OH]2–","authors":"A. S. Kubasov, I. V. Novikov, A. V. Golubev, V. A. Mantsireva, K. Yu. Zhizhin, N. T. Kuznetsov","doi":"10.1134/S0036023626601856","DOIUrl":"10.1134/S0036023626601856","url":null,"abstract":"<p>A procedure for the selective silylation of the hydroxo-<i>closo</i>-dodecaborate anion [B<sub>12</sub>H<sub>11</sub>OH]<sup>2−</sup> using chlorotrimethylsilane, chlorotriphenylsilane, and dichlorodimethylsilane has been reported. It has been shown that the introduction of trimethylsilyl and triphenylsilyl groups proceeds efficiently in the presence of triethylamine, whereas the preparation of dimethylsilyl derivatives requires preliminary deprotonation of the hydroxyl group with butyllithium. Stability of the silyl group in aqueous solutions at various pH values has been studied using (Bu<sub>4</sub>N)<sub>2</sub>[B<sub>12</sub>H<sub>11</sub>OSi(CH<sub>3</sub>)<sub>3</sub>] salt as an example. Structures of a number of compounds have been studied by X-ray diffraction analysis.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 9","pages":"1177 - 1187"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023101","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":"Boron Octagraphene Stabilized by Mixed Doping: Structure, Stability, Electronic and Mechanical Properties","authors":"D. V. Steglenko, T. N. Gribanova, R. M. Minyaev","doi":"10.1134/S0036023626601261","DOIUrl":"10.1134/S0036023626601261","url":null,"abstract":"<p>Using the DFT method, the possibility of stabilizing a boron analogue of octagraphene by mixed two-sided doping with aluminum and calcium atoms was demonstrated. Calculations predict that the resulting <i>tet</i>-B<sub>4</sub>Al<sub>2</sub>Ca<sub>2</sub> compound, which is a relatively soft material with metallic conductivity, will be thermodynamically and mechanically stable. According to thermal stability estimates, the predicted two-dimensional system is stable up to 1400 K and significantly outperforms doped hexagonal borophene modifications in this regard.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 9","pages":"1288 - 1297"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023092","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. N. Smirnova, A. D. Yapryntsev, G. D. Nipan, G. E. Nikiforova, A. A. Arkhipenko
{"title":"T–x Diagram of the Bi2O3–Sb2O4±δ Pseudobinary System","authors":"M. N. Smirnova, A. D. Yapryntsev, G. D. Nipan, G. E. Nikiforova, A. A. Arkhipenko","doi":"10.1134/S0036023626601613","DOIUrl":"10.1134/S0036023626601613","url":null,"abstract":"<p>The study addresses phase equilibria in the Bi–Sb–O ternary system. The samples with Sb/(Bi + Sb) ratios of 0.1, 0.25, 0.4, 0.5, 0.6, 0.75, 0.9, and 1.0 were prepared from Sb<sub>2</sub>O<sub>3</sub> and Bi<sub>2</sub>O<sub>3</sub> by solid-state synthesis in air at 1000°C followed by cooling in the thermal inertia mode and studied by X-ray diffraction. The obtained experimental results, together with scattered literature data, were used to construct the first <i>T</i>–<i>x</i> diagram of the Bi<sub>2</sub>O<sub>3</sub>–Sb<sub>2</sub>O<sub>4±δ</sub> pseudobinary system, which described the phase equilibria involving saturated vapor and the retrograde solubility of Sb<sub>2</sub>O<sub>4</sub> in Bi<sub>1–<i>x</i></sub>Sb<sub>1+<i>x</i></sub>O<sub>4</sub>. The optical properties of the Bi<sub>3</sub>SbO<sub>7</sub> and Bi<sub>1‒<i>x</i></sub>Sb<sub>1+<i>x</i></sub>O<sub>4</sub> (<i>x</i> = 0, 0.2) homogeneous crystalline phases in the UV/visible and IR ranges were analyzed.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 9","pages":"1331 - 1338"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023100","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":"Sensory Parameters and Chemical Affinity to N-Bases of Molybdenum(V) Porphyrin Complexes Depending on the Structure of Ligands","authors":"E. V. Motorina, T. N. Lomova","doi":"10.1134/S0036023626601972","DOIUrl":"10.1134/S0036023626601972","url":null,"abstract":"<p>In order to improve the sensor properties of molybdenum(V) porphyrin complexes, namely, their sensitivity to volatile organic bases, and taking into account the influence of the macrocyclic ligand periphery composition on the electron distribution in the π-system and on the interactions along the axial axis, (ethoxy)oxo[5,10,15,20-tetra(4-trifluoromethylphenyl)porphinato]molybdenum(V) was synthesized, its molecular structure and its spectral and optical sensory parameters were determined, and the thermodynamics of the reaction with pyridine was studied. The chemical structure of the compound and its donor–acceptor complexes with pyridine was established using electron absorption and infrared spectroscopy, nuclear magnetic resonance spectroscopy and mass spectrometry. Using the literature data on the topic of study, the relationship between the sensor properties of molybdenum(V) porphyrin complexes and the structure of their molecules was revealed. The obtained sensor characteristics—relative optical response, minimum detection limit for base concentration, and instantaneous circulation and response times—confirm the high potential of the synthesized complex for the creation of optical sensor devices for the detection of volatile organic compounds. The pyridine fragment was used as a bridge to obtain donor–acceptor dyads of the complex with N-methyl-2-(pyridin-4-yl)-3,4-fullero[60]pyrrolidine, which are expected to exhibit photoinduced electron transfer in a toluene medium.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 9","pages":"1253 - 1263"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023056","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. S. Lysenkov, M. D. Melnikov, M. G. Frolova, K. A. Kim, Yu. F. Kargin
{"title":"α-SiC Nanowires Synthesized by Vapor-Phase Siliconization of Carbon Felt","authors":"A. S. Lysenkov, M. D. Melnikov, M. G. Frolova, K. A. Kim, Yu. F. Kargin","doi":"10.1134/S003602362660187X","DOIUrl":"10.1134/S003602362660187X","url":null,"abstract":"<p>This study examines the synthesis of α-SiC nanowires from the gas phase during the siliconization of carbon felt in an inert argon atmosphere. It is shown that the siliconization of carbon felt without the use of a metallic catalyst is accompanied by a series of sequential and parallel redox reactions, including the formation of gaseous SiO, the formation of silicon dioxide (SiO<sub>2</sub>) in the free volume of the felt, and the growth of α-SiC nanowires on the resulting β-SiC fibers. It was established that the intermediate formation of silicon dioxide plays a key role in the growth of α-SiC nanowires. Silicon dioxide forms through the interaction of gaseous SiO with residual oxygen and through the local oxidation of the surface of β-SiC fibers in the silicon carbide felt. Subsequently, SiO<sub>2</sub> is reduced by carbon and/or carbon monoxide to form SiC, which promotes nanowire growth and the formation of a cotton-like three-dimensional structure. The obtained results indicate that the formation of α-SiC nanowires in porous carbon matrices such as carbon felt is governed not only by the direct carbothermal conversion of silicon dioxide, but also by complex redox reactions occurring in the gas phase.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 9","pages":"1215 - 1223"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023098","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}
K. Sh. Rabadanov, Z. Yu. Kubataev, A. M. Amirov, M. M. Gafurov, M. V. Kadiev
{"title":"Effect of Mg2+ Cation on the Phase Behavior and Local Structure of the Li0.42K0.58NO3 Eutectic Melt: A Raman Spectroscopy and DSC Study","authors":"K. Sh. Rabadanov, Z. Yu. Kubataev, A. M. Amirov, M. M. Gafurov, M. V. Kadiev","doi":"10.1134/S0036023626601765","DOIUrl":"10.1134/S0036023626601765","url":null,"abstract":"<p>A comprehensive investigation was carried out in his work of the structural, thermal, and dynamic properties of the (1 − <i>x</i>)(Li<sub>0.42</sub>K<sub>0.58</sub>NO<sub>3</sub>)–<i>x</i>Mg(NO<sub>3</sub>)<sub>2</sub> (<i>x</i> = 0–0.5) multicomponent nitrate system using combined light scattering and differential scanning calorimetry. The symmetric mode ν<sub>1</sub>(<span>({text{A}}_{1}^{{{'}}})</span>) of the nitrate ion <span>({text{NO}}_{3}^{ - })</span> was used as a structure-sensitive probe. It was found that the introduction of Mg(NO<sub>3</sub>)<sub>2</sub> leads to a significant rearrangement of the phase behavior of the initial eutectic melt: at concentrations <i>x</i> ≥ 0.3, signs of glass formation and subsequent devitrification are observed, which are accompanied by exothermic effects during heating. Quantitative analysis of the parameters of the ν<sub>1</sub>(<span>({text{A}}_{1}^{{{'}}})</span>) oscillational mode revealed an increase in the amplitude of frequency fluctuations and an acceleration of oscillatory dephasing with increasing magnesium nitrate content. In this case, the contribution of heterogeneous broadening becomes dominant for intermediate compositions, indicating an increase in the structural heterogeneity of the system. It is shown that the addition of Mg<sup>2+</sup> induces a transition from a simple eutectic melt to a structurally complex system with pronounced local heterogeneity and slowed relaxation dynamics.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 9","pages":"1298 - 1305"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023021","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}
N. A. Kharchenko, V. P. Pakharukova, V. N. Rogozhnikov, O. A. Stonkus, A. M. Gorlova
{"title":"Synthesis of Pt1–xCux/Ce0.75Zr0.25O2 Bimetallic Catalysts by Galvanic Replacement: Control of Material Composition and Structure by X-Ray Diffraction Methods","authors":"N. A. Kharchenko, V. P. Pakharukova, V. N. Rogozhnikov, O. A. Stonkus, A. M. Gorlova","doi":"10.1134/S0036023626602011","DOIUrl":"10.1134/S0036023626602011","url":null,"abstract":"<p>Supported Pt<sub>1-<i>x</i></sub>Cu<sub><i>x</i></sub>/Ce<sub>0.75</sub>Zr<sub>0.25</sub>O<sub>2</sub> bimetallic catalysts have been synthesized using galvanic replacement. The method involved preparation of a supported monometallic catalyst Cu/Ce<sub>0.75</sub>Zr<sub>0.25</sub>O<sub>2</sub>, its reduction to form metallic Cu<sup>0</sup> template particles, and partial replacement of Cu atoms with Pt by galvanic replacement. Reduction of the Cu/Ce<sub>0.75</sub>Zr<sub>0.25</sub>O<sub>2</sub> precursor was conducted in two ways: in a hydrogen-containing gas atmosphere and in an aqueous suspension containing hydrazine dihydrochloride. Catalyst composition and structure were investigated by X-ray powder diffraction and high-resolution transmission electron microscopy, while the structure of highly dispersed particles was determined by X-ray pair distribution function analysis. The synthesis route involving hydrogen reduction of the Cu/Ce<sub>0.75</sub>Zr<sub>0.25</sub>O<sub>2</sub> precursor led to the formation of bimetallic Pt<sub>1–<i>x</i></sub>Cu<sub><i>x</i></sub> particles with a solid-solution structure. In contrast, the approach involving chemical reduction of the Cu/Ce<sub>0.75</sub>Zr<sub>0.25</sub>O<sub>2</sub> precursor yielded predominantly separate ultrafine Cu- and Pt-containing species. The results demonstrate the feasibility of synthesizing supported bimetallic Pt–Cu catalysts via galvanic replacement.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 9","pages":"1339 - 1348"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023173","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":"Simulation of Spin Selectivity of Conductivity of Silver Nanotubes by the Cylindrical Wave Method","authors":"P. N. Dyachkov","doi":"10.1134/S0036023626601030","DOIUrl":"10.1134/S0036023626601030","url":null,"abstract":"<p>To find compounds with highly spin-polarized electronic structure and spin-selective conductivity, the spin-dependent band structure of two series of chiral single-walled silver nanotubes (5, <span>({{n}_{2}})</span>) and (10, <span>({{n}_{2}})</span>) has been calculated by the relativistic cylindrical wave method. Using models of the dependence of electron tunneling through potential barriers on the mutual orientation of the electron spin and barrier chirality vectors, it has been established that four Ag compounds (5, 1), (5, 4), (10, 2), and (10, 7) can be used as materials for creating spin currents and elements of molecular spintronics. For these tubes, high spin selectivity of conductivity is due to high spin polarizability, when the spin density of α-electrons at the Fermi level is several times higher than the density of β-electrons.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 9","pages":"1283 - 1287"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023096","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. A. Lukoshkova, A. S. Kubasov, G. A. Buzanov, A. V. Golubev, A. Yu. Bykov, V. V. Avdeeva, N. V. Breslav, T. M. Buslaeva, K. Yu. Zhizhin, N. T. Kuznetsov
{"title":"Palladium(II) Complexes with Triphenylphosphine, Diphenyl-2-Pyridylphosphine, and the Dodecachloro-closo-Dodecaborate Anion","authors":"A. A. Lukoshkova, A. S. Kubasov, G. A. Buzanov, A. V. Golubev, A. Yu. Bykov, V. V. Avdeeva, N. V. Breslav, T. M. Buslaeva, K. Yu. Zhizhin, N. T. Kuznetsov","doi":"10.1134/S0036023626601868","DOIUrl":"10.1134/S0036023626601868","url":null,"abstract":"<p>In this work, cationic palladium(II) complexes with triphenylphosphine (Ph<sub>3</sub>P) and/or diphenyl-2-pyridylphosphine (PyPh<sub>2</sub>P), stabilized by the dodecachloro-<i>closo</i>-dodecaborate anion [B<sub>12</sub>Cl<sub>12</sub>]<sup>2–</sup>, were synthesized for the first time. The synthesis was carried out in acetonitrile using a stepwise method involving ligand metathesis in the Pd(II) coordination sphere to form [PdL<sub>2</sub>Cl<sub>2</sub>] complexes (where L is a monodentate ligand) followed by the removal of chloride ions using Ag<sub>2</sub>[B<sub>12</sub>Cl<sub>12</sub>]. The structures of the resulting complexes [Pd(Ph<sub>3</sub>P)(CH<sub>3</sub>CN)<sub>2</sub>Cl]<sub>2</sub>[B<sub>12</sub>Cl<sub>12</sub>], [Pd(Ph<sub>3</sub>P)<sub>2</sub>(CH<sub>3</sub>CN)<sub>2</sub>][B<sub>12</sub>Cl<sub>12</sub>]·CH<sub>3</sub>CN, [Pd(PyPh<sub>2</sub>P)<sub>2</sub>(CH<sub>3</sub>CN)][B<sub>12</sub>Cl<sub>12</sub>]·3CH<sub>3</sub>CN, and [Pd(Ph<sub>3</sub>P)(PyPh<sub>2</sub>P)Cl]<sub>2</sub>[B<sub>12</sub>Cl<sub>12</sub>]·4CH<sub>3</sub>CN were determined using X-ray diffraction and IR spectroscopy. Reaction schemes for complex formation were proposed, taking into account the reactant ratio and the <i>trans</i>-effect. The cytotoxicity of the synthesized compounds was investigated using MDCK cell cultures; the results showed moderate toxicity, which, combined with the inertness of the boron cluster anion, opens up prospects for developing new palladium-based radioprotective agents.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 9","pages":"1264 - 1275"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023095","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. N. Kropacheva, A. S. Lozhkin, F. Z. Gil’mutdinov, A. S. Alalykin, R. M. Zakirova, A. N. Maratkanova
{"title":"Titania-Based Support with Grafted Iminodiacetate Groups for the Coordination Heterogenization of Metal Catalysts","authors":"T. N. Kropacheva, A. S. Lozhkin, F. Z. Gil’mutdinov, A. S. Alalykin, R. M. Zakirova, A. N. Maratkanova","doi":"10.1134/S0036023626601820","DOIUrl":"10.1134/S0036023626601820","url":null,"abstract":"<p>Covalent immobilization of <i>N</i>-(phosphonomethyl)iminodiacetic acid (PMIDA) on mesoporous TiO<sub>2</sub> (anatase) was achieved for the first time. Fourier-transform infrared (FTIR) spectroscopy showed the tridentate binding of phosphonic groups to the TiO<sub>2</sub> surface with the maintenance of the N(CH<sub>2</sub>COOH)<sub>2</sub> moiety accessible for metal ion coordination. Supported ruthenium catalysts were manufactured from intact and modified TiO<sub>2</sub> impregnated with aqueous ruthenium(IV) solutions. Ruthenium in the catalysts is in the (+4) oxidation state as probed by X-ray photoelectron spectroscopy (XPS) and participates in interactions with the oxygen and nitrogen atoms of grafted iminodiacetate groups. The catalytic activity of ruthenium was studied in the reduction of <i>p</i>-nitrophenol (PNP) to <i>p</i>-aminophenol (PAP) under the action of NaBH<sub>4</sub> in aqueous solutions. When Ru<sup>IV</sup>/PMIDA-TiO<sub>2</sub> was used, the reaction rate constant and turn-over frequency (TOF) were twice the respective values provided on unmodified TiO<sub>2</sub> (Ru<sup>IV</sup>/TiO<sub>2</sub>). The catalyst on the modified support also demonstrated higher stability under repeated-use conditions.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 9","pages":"1188 - 1201"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023174","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}