Russian Journal of Inorganic Chemistry最新文献_第6页

Phase Equilibria in the Na+,Rb+||Cl –,({text{CrO}}_{4}^{{2 - }}) Three-Component Reciprocal System Na+,Rb+||Cl -, ({text{CrO}}_{4}^{{2 - }})三组分互反体系的相平衡

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-07-28 DOI: 10.1134/S0036023626601005

K. D. Pleshakov, E. M. Dvoryanova, I. K. Garkushin

{"title":"Phase Equilibria in the Na+,Rb+||Cl –,({text{CrO}}_{4}^{{2 - }}) Three-Component Reciprocal System","authors":"K. D. Pleshakov, E. M. Dvoryanova, I. K. Garkushin","doi":"10.1134/S0036023626601005","DOIUrl":"10.1134/S0036023626601005","url":null,"abstract":"Phase equilibria in the Na+,Rb+||Cl–,({text{CrO}}_{4}^{{2 - }}) three-component reciprocal system (TRS) have been studied by differential thermal analysis (DTA), thermogravimetry (TG), and X-ray powder diffraction (XRD). The boundary elements of the composition square are the NaCl–RbCl, NaCl–Na2CrO4, and RbCl–Rb2CrO4 eutectic-type systems and the Na2CrO4–Rb2CrO4 system with a continuous solid-solution series with a minimum. Thermodynamic calculations and subsequent experiments have proven that the NaCl–Rb2CrO4 stable diagonal partitions the ternary reciprocal system to two secondary phase triangles. The melting points and compositions of the quasi-binary eutectic mixture and ternary eutectic mixtures have been determined: e4: NaCl–Rb2CrO4 (52 : 48%), 506°C; E1: NaCl–Na2CrO4–Rb2CrO4 (52 : 1 : 47%), 502°C; and E2: NaCl–RbCl–Rb2CrO4 (48 : 7.5 : 44.5%), 497°C. The compositions of the phases that crystallize in the quasi-binary eutectic have been confirmed by X-ray powder diffraction.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 6","pages":"749 - 757"},"PeriodicalIF":1.5,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614753","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}

引用次数: 0

Role of Synthesis Conditions in the Structure Formation for Al–SBA-15 合成条件在Al-SBA-15结构形成中的作用

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-07-28 DOI: 10.1134/S003602362660098X

S. A. Novikova, Yu. N. Zaitseva, A. O. Eremina, T. Yu. Ivanenko, E. A. Shor, O. P. Taran, S. D. Kirik

{"title":"Role of Synthesis Conditions in the Structure Formation for Al–SBA-15","authors":"S. A. Novikova, Yu. N. Zaitseva, A. O. Eremina, T. Yu. Ivanenko, E. A. Shor, O. P. Taran, S. D. Kirik","doi":"10.1134/S003602362660098X","DOIUrl":"10.1134/S003602362660098X","url":null,"abstract":"Aluminosilicate samples of mesoporous SBA-15 were synthesized by the co-condensation method using aluminium nitrate and aluminium isopropoxide as precursors. A number of synthesis parameters were varied, in particular, acidity of the medium, Al/Si molar ratio (5 and 10%), supporting salt, and temperature. The samples were characterized by X-ray diffraction, low-temperature nitrogen adsorption–desorption, IR and NMR spectroscopy, and electron microscopy. The maximum aluminium concentration in the final product was ~5.7 mol % when aluminium isopropoxide was used as the precursor and ~2.6 mol % in the case of aluminium nitrate in an aqueous medium as the starting component. The introduction of sodium chloride into the reaction medium caused a decrease in the internal surface area and pore diameter, but did not affect the structural type of the material. According to transmission electron microscopy data, aluminium is distributed in the mesophase as small, continuous regions, which are apparently formed in the initial stage of particle formation. The inner surface of cylindrical pores has a heterogeneous composition, which is manifested in the adsorption and X-ray diffraction data of the obtained materials. An explanation was proposed for the limiting aluminium concentration in the final product for the synthesis of SBA-15 mesophase under the synthesis conditions used.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 6","pages":"838 - 849"},"PeriodicalIF":1.5,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614754","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}

引用次数: 0

Crystal Structure and 35Cl NQR Spectroscopy in Сhlorinated closo-Dodecaborate Clusters {[(Me2CO)Ag(μ-Me2CO)2Ag(Me2CO)][μ-B12Cl12]}n and {[DMFAg(μ-DMF)2AgDMF][μ-B12Cl12]}n Сhlorinated近十二硼酸盐簇{[(Me2CO)Ag(μ-Me2CO)2Ag(Me2CO)][μ-B12Cl12]}n和{[DMFAg(μ-DMF)2AgDMF][μ-B12Cl12]}n的晶体结构和35Cl NQR光谱

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-07-28 DOI: 10.1134/S0036023626601121

A. V. Golubev, E. A. Kravchenko, A. A. Gippius, A. V. Tkachev, S. V. Zhurenko, A. S. Kubasov, V. E. Maltseva, I. V. Ananyev, A. Yu. Bykov, K. Yu. Zhizhin, N. T. Kuznetsov

{"title":"Crystal Structure and 35Cl NQR Spectroscopy in Сhlorinated closo-Dodecaborate Clusters {[(Me2CO)Ag(μ-Me2CO)2Ag(Me2CO)][μ-B12Cl12]}n and {[DMFAg(μ-DMF)2AgDMF][μ-B12Cl12]}n","authors":"A. V. Golubev, E. A. Kravchenko, A. A. Gippius, A. V. Tkachev, S. V. Zhurenko, A. S. Kubasov, V. E. Maltseva, I. V. Ananyev, A. Yu. Bykov, K. Yu. Zhizhin, N. T. Kuznetsov","doi":"10.1134/S0036023626601121","DOIUrl":"10.1134/S0036023626601121","url":null,"abstract":"Two voluminous polymer silver(I) salts of perchlorinated dodecoborate clusters, {[(Me2CO)Ag(μ-Me2CO)2Ag(Me2CO)][μ-B12Cl12]}n (1) and {[DMFAg(μ-DMF)2AgDMF][μ-B12Cl12]}n (2) were synthesized. The 35Cl nuclear quadrupole resonance (NQR) spectroscopy supplemented with the X-ray diffraction data was applied for identifying and analyzing noncovalent interactions Cl···X in these salts. Whereas in X-ray diffraction, noncovalent interactions are associated with the presence of the shortened (shorter than the sum of the appropriate vdW radii) contacts, the 35Cl NQR technique reveals subtle perturbations in electron density distribution on the chlorine site resulting from the noncovalent interactions Cl···X. They adequately split the 35Cl NQR lines thus selecting noncovalent interactions from all the short interatomic contacts measured by X-ray diffraction. It was found that both compounds form noncovalent bonds between Cl atoms of the cluster cages and the atoms of cation species.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 6","pages":"724 - 736"},"PeriodicalIF":1.5,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614612","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}

引用次数: 0

Y2Se3–Y2O3 System: Synthesis of Phases and Phase Diagram Y2Se3-Y2O3体系：相的合成及相图

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-07-28 DOI: 10.1134/S0036023625603629

A. V. Bausk, D. N. Kamaev, M. S. Molokeev, I. O. Yurev, N. A. Shulaev, O. V. Trofimova, N. V. Ustyugova, O. V. Andreev

{"title":"Y2Se3–Y2O3 System: Synthesis of Phases and Phase Diagram","authors":"A. V. Bausk, D. N. Kamaev, M. S. Molokeev, I. O. Yurev, N. A. Shulaev, O. V. Trofimova, N. V. Ustyugova, O. V. Andreev","doi":"10.1134/S0036023625603629","DOIUrl":"10.1134/S0036023625603629","url":null,"abstract":"The Y2OSe2 and Y2O2Se phases should be considered as candidate phosphor and functional ceramic hosts. More than 20 samples have been studied in the Y2Se3–Y2O3 system and characterized by X‑ray powder diffraction (XRD), differential thermal analysis (DTA), visual thermal analysis (VTA), scanning electron microscopy (SEM), microstructure observation (MS), and microhardness measurements. A phase diagram of the Y2Se3–Y2O3 system has been designed for the first time using physicochemical analytical methods. Four invariant phase transformations occur in the system. The Y2OSe2 phase is orthorhombic (Pnma), has the microhardness H = 490 ± 30 HV, and melts incongruently at 1470 ± 15°C to form Y2O2Se crystals and a melt. The Y2O2Se phase is trigonal (P-3m1), has the microhardness H = 780 ± 25 HV, and melts congruently at 2000 ± 20°C. Two eutectic points exist in the system: (1) 0.505Y2Se3 : 0.495Y2OSe2 (16.5 mol % Y2O3), melting at 1350 ± 10°C; and (2) 0.615Y2O2Se : 0.385Y2O3 (79.5 mol % Y2O3), melting at 1790 ± 20°C. The Y2Se3, Y2OSe2, and Y2O2Se phases have similar morphologies in powders and in melt-crystallized primary crystals. The liquidus line of the system has been calculated by the Redlich–Kister polynomial and verified by thermoanalytical experiments.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 6","pages":"776 - 789"},"PeriodicalIF":1.5,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614750","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}

引用次数: 0

Phase Equilibria in the La2O3–Lu2O3–SrO System and the Vibrational Spectrum of La1–xSrxLuO3–δ Solid Solutions La2O3-Lu2O3-SrO体系的相平衡及la1 - xsrxlo3 -δ固溶体的振动谱

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-07-28 DOI: 10.1134/S0036023626600930

M. G. Zuev

{"title":"Phase Equilibria in the La2O3–Lu2O3–SrO System and the Vibrational Spectrum of La1–xSrxLuO3–δ Solid Solutions","authors":"M. G. Zuev","doi":"10.1134/S0036023626600930","DOIUrl":"10.1134/S0036023626600930","url":null,"abstract":"Phase equilibria in the La2O3–Lu2O3–SrO (0–50 mol %) system were studied in the subsolidus region up to 1400°C. The aim of the work was to triangulate the system and search for new phases. High-temperature synthesis of samples, X-ray phase analysis, and vibrational spectroscopy were used for the analysis. A continuous series of solid solutions with the perovskite structure of the composition La1–xSrxLuO3–δ, where x = 0–0.15, δ is nonstoichiometry, and a region of solid solutions based on SrLu2O4 crystals is found. The region is bounded by the following point coordinates (mol %): La2O3, 0–15; Lu2O3, 28–50; SrO, 50–70. It was found that the volume of the La1–xSrxLuO3–δ crystal lattice increases with increasing x. The obtained data on phase equilibria in the La2O3–Lu2O3–SrO system are comparable to those for binary confinement systems. IR and Raman spectra of the solid solutions were recorded, and OH groups trapped in the crystal lattice of La1–xSrxLuO3–δ solid solutions were detected. The results of this study can be used in the creation of new materials.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 6","pages":"758 - 764"},"PeriodicalIF":1.5,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614977","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}

引用次数: 0

Determination of the Acid–Base Dissociation Constants of mer- and fac-Triaquadiamminenitrosylruthenium Complexes 三元和三元二胺硝基钌配合物酸碱解离常数的测定

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-07-28 DOI: 10.1134/S0036023626600991

D. L. Galkin, G. A. Kostin, V. A. Vorobyev

引用次数: 0

Synthesis of the 9-(8'-Quinolylsulfenyl) Derivative of 7,8-Dicarba-nido-Undecaborate and a Half-Sandwich Nickel(II) Complex Based on It 7,8-二甲酰壬二酸酯9-（8′-喹啉亚砜基）衍生物的合成及其半夹层镍（II）配合物的合成

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-07-28 DOI: 10.1134/S0036023626600498

D. K. Semyonov, I. D. Kosenko, M. Yu. Stogniy, I. B. Sivaev

{"title":"Synthesis of the 9-(8'-Quinolylsulfenyl) Derivative of 7,8-Dicarba-nido-Undecaborate and a Half-Sandwich Nickel(II) Complex Based on It","authors":"D. K. Semyonov, I. D. Kosenko, M. Yu. Stogniy, I. B. Sivaev","doi":"10.1134/S0036023626600498","DOIUrl":"10.1134/S0036023626600498","url":null,"abstract":"Reaction of the potassium salt of nido-carborane with 8-quinolylsulfenyl chloride yielded the 9-(8'-quinolylsulfenyl) derivative of nido-carborane [9‑(НNC9H6-8'-S)-7,8-C2B9H11], treatment of which with a base yielded the anionic derivative [9-(NC9H6-8'-S)-7,8-C2B9H11]–. Complexation of the obtained compounds with [Ni(PPh3)2Cl2] resulted in the formation of the 18-electron half-sandwich nickelacarborane of η5,k1-type [3-PPh3-3-(4-NC9H6-8'-S)-closo-3,1,2-NiC2B9H10]. The proposed structures of the obtained nido-carborane derivatives and the metal complex were confirmed by NMR, IR, and UV spectroscopy, as well as mass spectrometry. The electrochemical properties of the synthesized nickelacarborane [3-PPh3-3-(4-NC9H6-8'-S)-closo-3,1,2-NiC2B9H10] were studied by cyclic voltammetry.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 6","pages":"718 - 723"},"PeriodicalIF":1.5,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614751","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}

引用次数: 0

Catalytic Activity of Ag/CeO2 Nanocomposites in CO Oxidation Ag/CeO2纳米复合材料在CO氧化中的催化活性

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-07-28 DOI: 10.1134/S0036023626600814

E. Yu. Liberman, E. I. Suvorova, A. Yu. Pereyaslavtsev, T. V. Kon’kova, S. N. Bokova-Sirosh, B. S. Kleusov

引用次数: 0

Study of Isomorphic Substitution of Zr4+ by Mg2+ in the Structure of Na3Zr2Si2PO12 Na3Zr2Si2PO12结构中Mg2+同构取代Zr4+的研究

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-07-28 DOI: 10.1134/S003602362660084X

D. N. Grishchenko, M. A. Medkov

{"title":"Study of Isomorphic Substitution of Zr4+ by Mg2+ in the Structure of Na3Zr2Si2PO12","authors":"D. N. Grishchenko, M. A. Medkov","doi":"10.1134/S003602362660084X","DOIUrl":"10.1134/S003602362660084X","url":null,"abstract":"In the present work, partial substitution of zirconium cations by magnesium has been carried out in the structure of the silicophosphate Na3Zr2Si2PO12 according to the generally accepted formula Na3 + 2yM(II)yZr2–ySi2PO12, in which charge compensation is achieved through additional Na+ ions. The dopant concentrations in the precursor have been varied in the range from 5 to 20 mol %. It has been shown that in the unit cell of Mg-doped compositions, the group of (SiO4)4– + Na+ ions is partially replaced by (PO4)3–. Silicophosphates with the structure Na3MgyZr2 – ySi2 – 2yP1 + 2yO12 are formed. Therefore, the precursor of composition Na3 + 2yM(II)yZr2 – ySi2PO12 contains excess concentrations of sodium and silicon relative to the forming Mg-substituted NASICON solid solutions. These excess amounts are responsible for changes in the crystal structure and morphology of the ceramics, namely: they increase the unit cell parameters of the crystal structure and give rise to an amorphous or impurity crystalline phase depending on the dopant concentration.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 6","pages":"677 - 687"},"PeriodicalIF":1.5,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614614","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}

引用次数: 0

Quantum-Chemical Modeling of the Structure of Mixed MgAl(BH4)5·6NH3 and Mg2Al(BH4)7·6NH3 Systems MgAl(BH4)5·6NH3和Mg2Al(BH4)7·6NH3混合体系结构的量子化学模拟

IF 1.5 3区化学

Russian Journal of Inorganic Chemistry Pub Date : 2026-07-28 DOI: 10.1134/S0036023626600954

A. S. Zyubin, T. S. Zyubina, O. V. Kravchenko, M. V. Soloviev, V. P. Vasiliev, A. A. Zaitsev, A. V. Shikhovtsev, Yu. A. Dobrovolsky

{"title":"Quantum-Chemical Modeling of the Structure of Mixed MgAl(BH4)5·6NH3 and Mg2Al(BH4)7·6NH3 Systems","authors":"A. S. Zyubin, T. S. Zyubina, O. V. Kravchenko, M. V. Soloviev, V. P. Vasiliev, A. A. Zaitsev, A. V. Shikhovtsev, Yu. A. Dobrovolsky","doi":"10.1134/S0036023626600954","DOIUrl":"10.1134/S0036023626600954","url":null,"abstract":"Within the framework of the cluster approach using the 6-311G(d,p) basis set and the hybrid density functional wB97XD, the structure of various variants of the bimetallic ammonia-borohydride complexes MgAl(BH4)5·6NH3 and Mg2Al(BH4)7·6NH3 was simulated. It was found that the MgAl(BH4)5·6NH3 system possesses a wide range of configurations with similar energies and different structures. Most of these complexes contain borohydride anions, which are not part of the first coordination spheres of the metals and have high negative charges. It can be expected that the increase in negative charges on individual anions and the flexibility of the geometric structure will contribute to a reduction in potential barriers to the elimination of H2 molecules. No such features were observed in the Mg2Al(BH4)7·6NH3 systems; the ratio of the number of H atoms in the borohydride and ammonia fragments is far from optimal. Therefore, these complexes are less promising as chemical sources of hydrogen compared to MgAl(BH4)5·6NH3.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"71 6","pages":"737 - 748"},"PeriodicalIF":1.5,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614616","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}

引用次数: 0