{"title":"Extraction of Pb2+ Ions by Sodium Aluminosilicates Synthesized from Rice Straw","authors":"A. N. Kholomeydik, A. E. Panasenko","doi":"10.1134/S0036023623603112","DOIUrl":"10.1134/S0036023623603112","url":null,"abstract":"<p>Samples of sodium aluminosilicates obtained by hydrolytic precipitation using rice straw of various types as silicon-containing feedstock were studied. The particle morphology was determined by scanning electron microscopy, the specific surface area was measured (362–470 m<sup>2</sup>/g), IR spectra were recorded, and the chemical and phase composition of the samples was determined. The sorption properties of the materials towards lead ions were studied, the sorption capacity was 199–550 mg/g. An organic component of the samples, formed simultaneously with aluminosilicate precipitation from rice straw hydrolysates, was detected, isolated, and studied by thermogravimetry and IR spectroscopy. The effect of the organic component on the sorption capacity of plant-derived aluminosilicates was investigated. The predominant sorption mechanisms were established. The used approach makes it possible to obtain aluminosilicates with a high sorption capacity, as well as safely dispose of rice straw.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 2","pages":"258 - 264"},"PeriodicalIF":1.8,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551820","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":"Coordination, Equilibria, and Stability of Zn(II), Cu(II), Ni(II), Co(II), Pb(II), and Hg(II) Metal Complexes with 4-(2-Pyridylazo)resorcinol in Aqueous/Ethanol Solutions","authors":"A. Cihanbay, H. Sari, F. N. Al-Obaidi, H. Atabey","doi":"10.1134/s0036023623603458","DOIUrl":"https://doi.org/10.1134/s0036023623603458","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A potentiometric investigation has been undertaken to illustrate the coordination competence of 4-(2-pyridylazo) resorcinol through its reaction with particular metal ions Zn<sup>2+</sup>, Cu<sup>2+</sup>, Ni<sup>2+</sup>, Co<sup>2+</sup>, Pb<sup>2+</sup>, and Hg<sup>2+</sup>, where metal complexes are formed in the solution. The dissociation constants of the ligand PAR are calculated together with the stability constants of its complexes with the above metal ions. The experimental conditions are controlled to achieve all measurements required in the solution (ethyl alcohol (10%) and water (90%)) at (25 ± 0.1)°C and an ionic background of 0.1 mol dm<sup>–3</sup> NaCl. The ligand acts as a tri-dentate, coordinating through the pyridine nitrogen, one of the azo group nitrogen and the <i>ortho</i>-hydroxy of the resorcinol moiety. Four dissociation constants were identified experimentally with values 2.40, 3.34, 5.63, and 10.84. It has been observed that several metal complexes originated in the solution, under the mentioned experimental conditions for each metal ion used. The values of the overall stability constants log ß<sub>n</sub> for all species and the dissociation constants of the PAR ligand are determined using the HYPERQUAD-2008 computer program. All species present in the solution are displayed with the use of speciation diagrams.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"25 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551848","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":"Interaction of Iron(III) with Succinic Acid and Certain Amino Acids","authors":"N. A. Skorik, O. A. Vasilyeva, A. P. Lakeev","doi":"10.1134/S0036023623602982","DOIUrl":"10.1134/S0036023623602982","url":null,"abstract":"<p>The interaction in double and triple systems containing Fe<sup>3+</sup> ion and biologically active compounds—succinic acid and/or certain amino acids (aminoacetic, glutamic, or aspartic)—have been studied by spectrophotometry, pH-potentiometry, and solubility. Composition and stability constants of homo- and mixed-ligand complexes at ionic strength <i>I</i> = 0.3 have been determined; iron(III) succinate with the composition of Fe<sub>2</sub>Suc<sub>3</sub>∙3H<sub>2</sub>O has been isolated, solubility constant of the salt log <i>K</i><sub><i>S</i></sub> = –27.74 ± 0.12 has been determined using its solubility data. Redox process proceeded in time has been revealed in iron(III)–succinate anion system.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 2","pages":"240 - 249"},"PeriodicalIF":1.8,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551821","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}
V. N. Serezhkin, M. S. Grigoriev, M. V. Sukacheva, V. Yu. Losev, L. B. Serezhkina
{"title":"Alkaline Metal Fluorooxalatouranilates: Structures and Selected Properties","authors":"V. N. Serezhkin, M. S. Grigoriev, M. V. Sukacheva, V. Yu. Losev, L. B. Serezhkina","doi":"10.1134/S0036023623602866","DOIUrl":"10.1134/S0036023623602866","url":null,"abstract":"<p>The structures of crystals Na<sub>3</sub>[UO<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)F<sub>3</sub>]⋅4H<sub>2</sub>O (<b>I</b>), K<sub>3</sub>[UO<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)F<sub>3</sub>] (<b>II</b>), K<sub>3</sub>[UO<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)<sub>2</sub>F]⋅3H<sub>2</sub>O (<b>III</b>), and Cs[UO<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)F]⋅H<sub>2</sub>O (<b>IV</b>) were studied for the first time using X-ray diffraction. The uranium-containing structural units are complexes [UO<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)F<sub>3</sub>]<sup>3–</sup> (for <b>I</b> and <b>II</b>), [UO<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)<sub>2</sub>F]<sup>3–</sup> (<b>III</b>), and [UO<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)F]<sup>–</sup> (<b>IV</b>) with crystal chemical formulas А(В<sup>01</sup>)M<span>(_{3}^{1})</span>, А(В<sup>01</sup>)<sub>2</sub>M<sup>1</sup>, and А(Q<sup>02</sup>)M<sup>1</sup> (A = <span>({text{UO}}_{{text{2}}}^{{{text{2 + }}}})</span>; B<sup>01</sup> or Q<sup>02</sup> = <span>({{{text{C}}}_{{text{2}}}}{text{O}}_{{text{4}}}^{{2 - }})</span>; M<sup>1</sup> = F<sup>–</sup>), respectively. In all compounds, the U(VI) atoms implement a pentagonal-bipyramidal coordination; in <b>I</b>–<b>II</b> the uranyl complexes have a mononuclear structure, and in crystals <b>IV</b> they have a chain structure similar to that known for [UO<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)(H<sub>2</sub>O)]⋅2H<sub>2</sub>O. The results obtained suggest that the sharp increase in the solubility of uranyl oxalate trihydrate in aqueous solutions with the addition of fluorides is due to the effect of structural depolymerization of coordination polymers in the presence of fluoride ions. A semi-empirical calculation was performed and the calculated and experimental vibration frequencies in the IR spectra of <b>II</b> and <b>IV</b> were compared.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 2","pages":"178 - 187"},"PeriodicalIF":1.8,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551842","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. N. Pechenkina, V. A. Krenev, S. V. Fomichev, D. F. Kondakov, E. I. Berbekova, A. A. Mikhailov
{"title":"Application of Energy-Dispersive X-ray Spectroscopy to Quantify the Chemical Composition of Igneous Rocks","authors":"E. N. Pechenkina, V. A. Krenev, S. V. Fomichev, D. F. Kondakov, E. I. Berbekova, A. A. Mikhailov","doi":"10.1134/S0036023623700365","DOIUrl":"10.1134/S0036023623700365","url":null,"abstract":"<p>The possibility of using energy-dispersive X-ray spectroscopy for quantification of the chemical composition of igneous rocks without their transfer into solution has been considered. Statistical processing of the measurement results has been carried out, and the error of the method in comparison with the inductively coupled plasma spectrometry method has been demonstrated.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 2","pages":"234 - 239"},"PeriodicalIF":1.8,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551846","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}
R. Maizi, R. Ksouri, A. G. Boudjahem, M. Derdare, N. Cheghib, I. Djaghout
{"title":"Electronic, Structural, Elastic, and Thermodynamic Properties of X2TiBr6 (X = Li and Na) under Pressure: A DFT Investigation","authors":"R. Maizi, R. Ksouri, A. G. Boudjahem, M. Derdare, N. Cheghib, I. Djaghout","doi":"10.1134/s0036023624600722","DOIUrl":"https://doi.org/10.1134/s0036023624600722","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>We investigate the electronic, structural, elastic, and thermodynamic properties of X<sub>2</sub>TiBr<sub>6</sub> (X = Li and Na) under pressure using the DFT calculations as implemented in the Quantum Espresso code. Generalized gradient approximation in the Perdew–Burke–Ernzerhof (PBE) form is used in this work. The calculated lattice parameters are 9.864 and 9.959 Å for Li<sub>2</sub>TiBr<sub>6</sub> and Na<sub>2</sub>TiBr<sub>6</sub>, respectively. The structure bands of the Li<sub>2</sub>TiBr<sub>6</sub> and Na<sub>2</sub>TiBr<sub>6</sub> compounds indicate energy band gaps of 0.92 and 1.0 eV, respectively. Their value increases with increasing ionic radius from Li to Na. The elastic constants, bulk modulus, shear modulus; Young’s modulus, Pugh’s ratio, and Poisson’s ratio have also been computed. The studied compounds are thermodynamically stable, and their stability decreased with the increase of atomic radius. Pugh’s and Poisson’s ratios that were calculated show that Li<sub>2</sub>TiBr<sub>6</sub> and Na<sub>2</sub>TiBr<sub>6</sub> are ductile compounds. The results also show that the heat capacity at high temperatures of the two compounds was found to be 224 J mol<sup>–1</sup> K<sup>–1</sup>.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"21 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551844","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":"Polythermal Solubility of the Sodium Chlorate–Triethanolammonium Sulfate–Water System","authors":"A. A. Sidikov, I. M. Miyassarov, A. S. Togasharov","doi":"10.1134/s0036023624600679","DOIUrl":"https://doi.org/10.1134/s0036023624600679","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This work aims to identify the composition of a new effective defoliant by studying the interactions of components in the NaClO<sub>3</sub>–H<sub>2</sub>SO<sub>4</sub>∙N(C<sub>2</sub>H<sub>4</sub>OH)<sub>3</sub>–H<sub>2</sub>O system. The solubility of the NaClO<sub>3</sub>–H<sub>2</sub>SO<sub>4</sub>∙N(C<sub>2</sub>H<sub>4</sub>OH)<sub>3</sub>–H<sub>2</sub>O ternary system was studied by the visual-polythermal method in varying temperatures and concentrations. A polythermal solubility diagram of the system has been constructed in the temperature range from –28.5 to 70.0°C. On its phase diagram the crystallization fields of ice, sodium chlorate, triethanolammonium sulfate and a new compound of the system, namely, sodium sulfate triethanolammonium are delimited. According to the results of experiments conducted to study the solubility of the NaClO<sub>3</sub>–H<sub>2</sub>SO<sub>4</sub>∙N(C<sub>2</sub>H<sub>4</sub>OH)<sub>3</sub>–H<sub>2</sub>O system, this system belongs to the complex eutonic type.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"18 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551850","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. A. Zarudskikh, E. G. Ilina, A. S. Mankevich, V. P. Smagin
{"title":"Synthesis and Doping of Zinc Sulfide in a Homogeneous System Based on Dodecane, Its Identification and Optical Properties","authors":"M. A. Zarudskikh, E. G. Ilina, A. S. Mankevich, V. P. Smagin","doi":"10.1134/S0036023623602969","DOIUrl":"10.1134/S0036023623602969","url":null,"abstract":"<p>Zinc sulfide doped with Mn<sup>2+</sup> ions was synthesized in a homogeneous dodecane medium using the emerging reagent method. Using the methods of chemical analysis, X-ray powder diffraction, IR spectroscopy, and electron microprobe microscopy, the products were identified and photographs of the surface of powder particles (SEM) were obtained. Based on the results obtained, it was concluded that nano-sized objects are formed that have a polytype structure with a predominance of distorted cubic crystals, forming agglomerates up to 10 μm in size in ZnS powder and up to 100 μm in ZnS–Mn powder. The formation of nanosized ZnS particles is confirmed by spectral data. The influence of manganese ions on the photoluminescence (PL) of the powder manifests itself in a change in the type of the descending branch of the ZnS–Mn PL band; this is associated with recombination processes at the levels of defects formed by Mn<sup>2+</sup> ions in the ZnS structure at their low concentration.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 2","pages":"161 - 171"},"PeriodicalIF":1.8,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551851","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. Husenov, B. B. Umarov, K. K. Turgunov, B. Sh. Ganiev, U. M. Mardonov, B. T. Ibragimov, J. M. Ashurov, D. A. Safin
{"title":"Synthesis, Characterization, and Computational Studies of the Zinc Bromide Complex with 2-Amino-1,3,4-thiadiazole","authors":"K. Sh. Husenov, B. B. Umarov, K. K. Turgunov, B. Sh. Ganiev, U. M. Mardonov, B. T. Ibragimov, J. M. Ashurov, D. A. Safin","doi":"10.1134/s0036023624600941","DOIUrl":"https://doi.org/10.1134/s0036023624600941","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A new mononuclear heteroleptic complex bis(2-amino-1,3,4-thiadiazole-<i>N</i>)-dibromo zinc(II), [ZnBr<sub>2</sub>L<sub>2</sub>] (<b>1</b>), which was obtained from 2-amino-1,3,4-thiadiazole (<b>L</b>), is reported. Complex <b>1</b> was studied by elemental analysis, FT-IR spectroscopy and single crystal X-ray diffraction. Crystal packing of complex <b>1</b> was additionally studied using the Hirshfeld surface analysis. The DFT/B3LYP/6-31++G(d,p) based computations were additionally applied to reveal electronic features of the obtained complex <b>1</b>. It was established that complex <b>1</b> contains two parent ligands <b>L</b>, which are monocoordinated through the thiadiazole 3-nitrogen atom and the coordination sphere of the metal cation is filled by two bromide anions. The molecular structure of complex <b>1</b> is stabilized by one N–H<span>( cdots )</span>N and one N–H<span>( cdots )</span>Br hydrogen bonds. Molecules of <b>1</b> are interlinked through a myriad of N–H<span>( cdots )</span>N and N–H<span>( cdots )</span>Br hydrogen bonds, and S<span>( cdots )</span>Br and π<span>( cdots )</span>π interactions, yielding a 3D supramolecular structure. Theoretical calculations revealed a strong electrophilic nature of the optimized structure of <b>1</b> with the most electro-rich and electron-deficient sites observed on the bromide anions and NH<sub>2</sub> hydrogen atoms, which are not involved in the formation of intramolecular hydrogen bonds, respectively.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"50 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551817","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}
P. A. Buikin, A. S. Zhavoronkov, A. B. Ilyukhin, V. Yu. Kotov
{"title":"Solid Solutions of Pyridinium Halobismuthates","authors":"P. A. Buikin, A. S. Zhavoronkov, A. B. Ilyukhin, V. Yu. Kotov","doi":"10.1134/S003602362360288X","DOIUrl":"10.1134/S003602362360288X","url":null,"abstract":"<p>Solid solutions of pyridinium bromo-iodobismutates have been isolated from aqueous solutions and structurally characterized. The composition of the resulting solid solutions [HPy]BiX<sub>4</sub> and [HPy]<sub>3</sub>Bi<sub>2</sub>X<sub>9</sub> (X = Br, I) depends on the ratios of organic cation/bismuth and bromine/iodine in the initial solution. The existence of five polymorphic modifications in the system for compositions [HPy]BiX<sub>4</sub> has been shown. Two different polymorphs have been found for iodobismuthate [HPy]BiI<sub>4</sub>.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"69 2","pages":"172 - 177"},"PeriodicalIF":1.8,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551841","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}