Pub Date : 2024-07-03DOI: 10.1134/s0036023624600679
A. A. Sidikov, I. M. Miyassarov, A. S. Togasharov
Abstract
This work aims to identify the composition of a new effective defoliant by studying the interactions of components in the NaClO3–H2SO4∙N(C2H4OH)3–H2O system. The solubility of the NaClO3–H2SO4∙N(C2H4OH)3–H2O 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 NaClO3–H2SO4∙N(C2H4OH)3–H2O system, this system belongs to the complex eutonic type.
{"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}
Pub Date : 2024-07-03DOI: 10.1134/s0036023623602969
M. A. Zarudskikh, E. G. Ilina, A. S. Mankevich, V. P. Smagin
Abstract
Zinc sulfide doped with Mn2+ 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 Mn2+ ions in the ZnS structure at their low concentration.
{"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":"https://doi.org/10.1134/s0036023623602969","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><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":"2015 1","pages":""},"PeriodicalIF":2.1,"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}
Pub Date : 2024-07-03DOI: 10.1134/s0036023624600941
K. Sh. Husenov, B. B. Umarov, K. K. Turgunov, B. Sh. Ganiev, U. M. Mardonov, B. T. Ibragimov, J. M. Ashurov, D. A. Safin
Abstract
A new mononuclear heteroleptic complex bis(2-amino-1,3,4-thiadiazole-N)-dibromo zinc(II), [ZnBr2L2] (1), which was obtained from 2-amino-1,3,4-thiadiazole (L), is reported. Complex 1 was studied by elemental analysis, FT-IR spectroscopy and single crystal X-ray diffraction. Crystal packing of complex 1 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 1. It was established that complex 1 contains two parent ligands L, 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 1 is stabilized by one N–H( cdots )N and one N–H( cdots )Br hydrogen bonds. Molecules of 1 are interlinked through a myriad of N–H( cdots )N and N–H( cdots )Br hydrogen bonds, and S( cdots )Br and π( cdots )π interactions, yielding a 3D supramolecular structure. Theoretical calculations revealed a strong electrophilic nature of the optimized structure of 1 with the most electro-rich and electron-deficient sites observed on the bromide anions and NH2 hydrogen atoms, which are not involved in the formation of intramolecular hydrogen bonds, respectively.
{"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}
Pub Date : 2024-07-03DOI: 10.1134/s003602362360288x
P. A. Buikin, A. S. Zhavoronkov, A. B. Ilyukhin, V. Yu. Kotov
Abstract
Solid solutions of pyridinium bromo-iodobismutates have been isolated from aqueous solutions and structurally characterized. The composition of the resulting solid solutions [HPy]BiX4 and [HPy]3Bi2X9 (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]BiX4 has been shown. Two different polymorphs have been found for iodobismuthate [HPy]BiI4.
{"title":"Solid Solutions of Pyridinium Halobismuthates","authors":"P. A. Buikin, A. S. Zhavoronkov, A. B. Ilyukhin, V. Yu. Kotov","doi":"10.1134/s003602362360288x","DOIUrl":"https://doi.org/10.1134/s003602362360288x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><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":"24 1","pages":""},"PeriodicalIF":2.1,"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}
Pub Date : 2024-07-03DOI: 10.1134/s0036023623602933
A. N. Turanov, V. K. Karandashev, E. V. Sharova, O. I. Artyushin
Abstract
A new dicationic ionic liquid, 1-methyl-3-(4-(tributylphosphonio)butyl)-1H-imidazol-3-ium di[bis(trifluoromethanesulfonyl)imide] [ImP][Tf2N]2, showing high hydrophobicity (solubility in water is 9.2 × 10–4 mol/L) has been synthesized. The extraction of U(VI), Th(IV), and lanthanides(III) from nitric acid solutions with mixtures of 1,5-N,N'-bis[(diphenylphosphoryl)acetyl(hexyl)amino]pentane (L) containing two bidentate Ph2P(O)CH2C(O)N(Hex)- fragments connected by pentamethylene spacer through amide nitrogen atoms and [ImP][Tf2N]2 in 1,2-dichloroethane (DCE) has been studied. During the extraction of metal ions in this system, a significant synergistic effect has been observed. The influence of the composition of aqueous and organic phases on the efficiency of metal ions extraction into organic phase has been considered and the stoichiometry of extracted complexes has been determined. The synergistic effect in the extraction of Ln(III) from 3 M HNO3 solutions with a mixture of L and [ImP][Tf2N]2 in DCE is an order of magnitude higher than in the L–[C8mim][Tf2N]–DCE system.
{"title":"Extraction of Actinides and Lanthanides from Nitric Acid Solutions with Mixtures of 1,5-N,N'-Bis[(Diphenylphosphoryl)Acetyl(Hexyl)Amino]pentane and New Asymmetrical Phosphonium- and Imidazolium-Based Ionic Liquid","authors":"A. N. Turanov, V. K. Karandashev, E. V. Sharova, O. I. Artyushin","doi":"10.1134/s0036023623602933","DOIUrl":"https://doi.org/10.1134/s0036023623602933","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A new dicationic ionic liquid, 1-methyl-3-(4-(tributylphosphonio)butyl)-1<i>H</i>-imidazol-3-ium di[bis(trifluoromethanesulfonyl)imide] [ImP][Tf<sub>2</sub>N]<sub>2</sub>, showing high hydrophobicity (solubility in water is 9.2 × 10<sup>–4</sup> mol/L) has been synthesized. The extraction of U(VI), Th(IV), and lanthanides(III) from nitric acid solutions with mixtures of 1,5-<i>N</i>,<i>N</i>'-bis[(diphenylphosphoryl)acetyl(hexyl)amino]pentane (L) containing two bidentate Ph<sub>2</sub>P(O)CH<sub>2</sub>C(O)N(Hex)- fragments connected by pentamethylene spacer through amide nitrogen atoms and [ImP][Tf<sub>2</sub>N]<sub>2</sub> in 1,2-dichloroethane (DCE) has been studied. During the extraction of metal ions in this system, a significant synergistic effect has been observed. The influence of the composition of aqueous and organic phases on the efficiency of metal ions extraction into organic phase has been considered and the stoichiometry of extracted complexes has been determined. The synergistic effect in the extraction of Ln(III) from 3 M HNO<sub>3</sub> solutions with a mixture of L and [ImP][Tf<sub>2</sub>N]<sub>2</sub> in DCE is an order of magnitude higher than in the L<i>–</i>[C<sub>8</sub>mim][Tf<sub>2</sub>N]<i>–</i>DCE system.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"14 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551843","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}
Pub Date : 2024-07-03DOI: 10.1134/s003602362360301x
A. A. Ostroushko, I. D. Gagarin, E. V. Kudyukov, T. Yu. Zhulanova, A. E. Permyakova, O. V. Russkikh
Abstract
The generation of electric charges during the combustion of nitrate organic precursors in the synthesis of strontium hexaferrite SrFe12O19-based complex oxide materials, including those doped with lanthanum and cobalt ions, was established. The precursors included polyvinyl alcohol or glycine. The intensity of charge generation was lower for precursors containing a larger amount of the organic component. Magnetic characteristics of the samples (magnetization, coercive field) were measured. An external magnetic field applied during the hexaferrite synthesis significantly affected the coercive field of the samples, which could be increased via the formation of extended ensembles of nanoparticles. The effect was more pronounced for samples with a moderate level of charge generation. The relationship between the factors influencing the formation of extended aggregates was analyzed. The maximum coercive field was found for Sr0.8La0.2Fe11.8Co0.2O19. One way to increase the coercive field is a two-stage magnetic heat treatment including a low-temperature stage. The formation of branched extended structures at the macro- and micro-levels was found during the combustion of glycine-containing precursors.
{"title":"Preparation of Strontium Hexaferrite-Based Materials by Solution Combustion: Effects of Charges Arising in the Precursors and an External Magnetic Field","authors":"A. A. Ostroushko, I. D. Gagarin, E. V. Kudyukov, T. Yu. Zhulanova, A. E. Permyakova, O. V. Russkikh","doi":"10.1134/s003602362360301x","DOIUrl":"https://doi.org/10.1134/s003602362360301x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The generation of electric charges during the combustion of nitrate organic precursors in the synthesis of strontium hexaferrite SrFe<sub>12</sub>O<sub>19</sub>-based complex oxide materials, including those doped with lanthanum and cobalt ions, was established. The precursors included polyvinyl alcohol or glycine. The intensity of charge generation was lower for precursors containing a larger amount of the organic component. Magnetic characteristics of the samples (magnetization, coercive field) were measured. An external magnetic field applied during the hexaferrite synthesis significantly affected the coercive field of the samples, which could be increased via the formation of extended ensembles of nanoparticles. The effect was more pronounced for samples with a moderate level of charge generation. The relationship between the factors influencing the formation of extended aggregates was analyzed. The maximum coercive field was found for Sr<sub>0.8</sub>La<sub>0.2</sub>Fe<sub>11.8</sub>Co<sub>0.2</sub>O<sub>19</sub>. One way to increase the coercive field is a two-stage magnetic heat treatment including a low-temperature stage. The formation of branched extended structures at the macro- and micro-levels was found during the combustion of glycine-containing precursors.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"27 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551849","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}
Pub Date : 2024-07-03DOI: 10.1134/s0036023624600709
Le Van Toan, Dang Minh Duc, Pham Thi Mai Phuong, Ta Quoc Tuan, Le Thi Bang, Tran Trong An, Vuong-Hung Pham
Abstract
In this article, the influence of fluoride ion concentrations on the bamboo-like structure of titanium dioxide nanotubes (TNTs) and cell attachment was investigated. Research methods involved powder X‑ray diffraction, field-emission scanning electron microscopy (FESEM), and confocal laser scanning microscope (CLSM) to characterize TNTs properties. Powder X-ray diffraction results showed that TNTs consisted of a mixture of rutile and anatase. FESEM images revealed that the microstructure of TNTs was controlled by NH4F concentrations. CLSM images demonstrated better BHK cells attachment compared to untreated titanium (Ti). These findings suggest that TNTs synthesis via anodizing is a biocompatible material with potential applications in biomedical implants.
{"title":"Effect of Ammonium Fluoride Concentrations on Bamboo-Like Structure of the Titanium Dioxide Nanotubes for Titanium Implants","authors":"Le Van Toan, Dang Minh Duc, Pham Thi Mai Phuong, Ta Quoc Tuan, Le Thi Bang, Tran Trong An, Vuong-Hung Pham","doi":"10.1134/s0036023624600709","DOIUrl":"https://doi.org/10.1134/s0036023624600709","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>In this article, the influence of fluoride ion concentrations on the bamboo-like structure of titanium dioxide nanotubes (TNTs) and cell attachment was investigated. Research methods involved powder X‑ray diffraction, field-emission scanning electron microscopy (FESEM), and confocal laser scanning microscope (CLSM) to characterize TNTs properties. Powder X-ray diffraction results showed that TNTs consisted of a mixture of rutile and anatase. FESEM images revealed that the microstructure of TNTs was controlled by NH<sub>4</sub>F concentrations. CLSM images demonstrated better BHK cells attachment compared to untreated titanium (Ti). These findings suggest that TNTs synthesis via anodizing is a biocompatible material with potential applications in biomedical implants.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"15 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551819","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}
Pub Date : 2024-07-03DOI: 10.1134/s0036023623602945
O. Yu. Trofimova, A. V. Maleeva, M. V. Arseniev, T. N. Kocherova, A. V. Cherkasov, I. A. Yakushev, P. V. Dorovatovski, A. V. Piskunov
Abstract
Copper(II) complexes based on 3,5-di-tert-octyl-o-benzoquinone (3,5-t-Oc-Q) have been synthesized. Derivatives of the composition (3,5-t-Oc-SQ)2Cu (I), (3,5-t-Oc-Cat)Cu(Phen) (II), (3,5‑t-Oc-Cat)Cu(DPQ) (III), and (3,5-t-Oc-Cat)Cu(DPPZ) (IV) have been obtained and characterized, where 3,5-t-Oc-SQ is the radical anion of 3,5-di-tert-octyl-o-benzoquinone, 3,5-t-Oc-Cat is the 3,5-di-tert-octyl-o-benzoquinone dianion, Phen is phenanthroline, DPQ is dipyrido[3,2-d:2′,3′-f]quinoxaline, and DPPZ is dipyrido[3,2-a:2′,3′-c]phenazine. The molecular and crystal structures of complexes I and II have been determined by X-ray diffraction. The spectral characteristics of the synthesized copper(II) derivatives have been studied using electron absorption spectroscopy. Crystallographic data for compounds I and II have been deposited with the Cambridge Structural Database (nos. 2291614 and 2279045 for I and II, respectively).
摘要 合成了基于 3,5-二叔辛基邻苯醌（3,5-t-Oc-Q）的铜（II）配合物。获得了(3,5-t-Oc-SQ)2Cu (I)、(3,5-t-Oc-Cat)Cu(Phen)(II)、(3,5-t-Oc-Cat)Cu(DPQ)(III)和(3,5-t-Oc-Cat)Cu(DPPZ)(IV)衍生物，并对其进行了表征、其中，3,5-t-Oc-SQ 是 3,5- 二叔辛基邻苯醌的基阴离子，3,5-t-Oc-Cat 是 3,5- 二叔辛基邻苯醌的二阴离子，Phen 是菲罗啉，DPQ 是二吡啶并[3,2-d：2′,3′-f]喹喔啉，DPPZ 是二吡啶并[3,2-a:2′,3′-c]吩嗪。通过 X 射线衍射测定了复合物 I 和 II 的分子和晶体结构。利用电子吸收光谱对合成的铜（II）衍生物的光谱特性进行了研究。化合物 I 和 II 的晶体学数据已存入剑桥结构数据库（I 和 II 的编号分别为 2291614 和 2279045）。
{"title":"Copper(II) Complexes with Mono- and Double Reduced Forms of 3,5-Di-tert-octyl-o-benzoquinone","authors":"O. Yu. Trofimova, A. V. Maleeva, M. V. Arseniev, T. N. Kocherova, A. V. Cherkasov, I. A. Yakushev, P. V. Dorovatovski, A. V. Piskunov","doi":"10.1134/s0036023623602945","DOIUrl":"https://doi.org/10.1134/s0036023623602945","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Copper(II) complexes based on 3,5-di-<i>tert</i>-octyl-<i>o</i>-benzoquinone (3,5-<i>t</i>-Oc-Q) have been synthesized. Derivatives of the composition (3,5-<i>t-</i>Oc-SQ)<sub>2</sub>Cu (<b>I</b>), (3,5-<i>t-</i>Oc-Cat)Cu(Phen) (<b>II</b>), (3,5<i>‑t-</i>Oc-Cat)Cu(DPQ) (<b>III</b>), and (3,5-<i>t-</i>Oc-Cat)Cu(DPPZ) (<b>IV</b>) have been obtained and characterized, where 3,5-<i>t</i>-Oc-SQ is the radical anion of 3,5-di-<i>tert</i>-octyl-<i>o</i>-benzoquinone, 3,5-<i>t</i>-Oc-Cat is the 3,5-di-<i>tert</i>-octyl-<i>o</i>-benzoquinone dianion, Phen is phenanthroline, DPQ is dipyrido[3,2-d:2′,3′-f]quinoxaline, and DPPZ is dipyrido[3,2-a:2′,3′-c]phenazine. The molecular and crystal structures of complexes <b>I</b> and <b>II</b> have been determined by X-ray diffraction. The spectral characteristics of the synthesized copper(II) derivatives have been studied using electron absorption spectroscopy. Crystallographic data for compounds <b>I</b> and <b>II</b> have been deposited with the Cambridge Structural Database (nos. 2291614 and 2279045 for <b>I</b> and <b>II</b>, respectively).</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"48 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551822","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}
Pub Date : 2024-07-03DOI: 10.1134/s0036023623602805
K. Sh. Khusenov, B. B. Umarov, K. K. Turgunov, O. Zh. Bakhronova, T. B. Aliev, B. T. Ibragimov
Abstract
Zn(II) complexes [ZnL(_{2}^{n})Х2] and [ZnL(_{3}^{n})(NO3)2], where n = 1, 2; X = Cl, Br, I; L1 is 2-aminothiadiazole-1,3,4, and L2 is 2-amino-5-methylthiadiazole-1,3,4, have been synthesized. The resulting complexes have been studied using elemental analysis, IR and 1H NMR spectroscopies. The structure of complex [ZnL(_{2}^{2})Br2] has been determined by X-ray diffraction (CIF file CCDC no. 2251742). It has been found that the ligand molecules of 2-amino-5-R-thiadiazoles-1,3,4 (R = –H, –CH3) are coordinated monodentately by the endocyclic nitrogen atom located in the α-position to the amino group. The polyhedron of the central atom of halide complexes is a slightly distorted tetrahedron, the coordination sphere of which is formed by two halide atoms and two endocyclic nitrogen atoms. According to the spectral data, during complexation in a solution of complex [ZnL(_{2}^{2})Br2], coordinated ligands L2 undergo amino-imine tautomerism to form a heterocyclic amine with a nitrogen atom in the heterocycle. The polyhedron of the central atom for nitrate complexes is a slightly distorted trigonal bipyramid, in the coordination sphere of which three nitrogen atoms of the ligands are located in the equatorial plane and two oxygen atoms of two nitrate anions are located in the axial position.
{"title":"Zinc(II) Complexes with Thiadiazole-1,3,4 Derivatives","authors":"K. Sh. Khusenov, B. B. Umarov, K. K. Turgunov, O. Zh. Bakhronova, T. B. Aliev, B. T. Ibragimov","doi":"10.1134/s0036023623602805","DOIUrl":"https://doi.org/10.1134/s0036023623602805","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Zn(II) complexes [ZnL<span>(_{2}^{n})</span>Х<sub>2</sub>] and [ZnL<span>(_{3}^{n})</span>(NO<sub>3</sub>)<sub>2</sub>], where <i>n</i> = 1, 2; X = Cl, Br, I; L<sup>1</sup> is 2-aminothiadiazole-1,3,4, and L<sup>2</sup> is 2-amino-5-methylthiadiazole-1,3,4, have been synthesized. The resulting complexes have been studied using elemental analysis, IR and <sup>1</sup>H NMR spectroscopies. The structure of complex [ZnL<span>(_{2}^{2})</span>Br<sub>2</sub>] has been determined by X-ray diffraction (CIF file CCDC no. 2251742). It has been found that the ligand molecules of 2-amino-5-R-thiadiazoles-1,3,4 (R = –H, –CH<sub>3</sub>) are coordinated monodentately by the endocyclic nitrogen atom located in the α-position to the amino group. The polyhedron of the central atom of halide complexes is a slightly distorted tetrahedron, the coordination sphere of which is formed by two halide atoms and two endocyclic nitrogen atoms. According to the spectral data, during complexation in a solution of complex [ZnL<span>(_{2}^{2})</span>Br<sub>2</sub>], coordinated ligands L<sup>2</sup> undergo amino-imine tautomerism to form a heterocyclic amine with a nitrogen atom in the heterocycle. The polyhedron of the central atom for nitrate complexes is a slightly distorted trigonal bipyramid, in the coordination sphere of which three nitrogen atoms of the ligands are located in the equatorial plane and two oxygen atoms of two nitrate anions are located in the axial position.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"22 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551845","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}
Pub Date : 2024-07-03DOI: 10.1134/s0036023623603069
D. I. Nemkova, S. V. Saikova, A. E. Krolikov, E. V. Pikurova, A. S. Samoilo
Abstract
Nonferrous metal ferrites are promising magnetic catalysts that can be easily separated from the reaction mixture after use by applying a magnetic field. However, these materials have fast electron–hole relaxation times, which reduces their activity in photoreactions. Hybrid ferrite-based nanostructures, for example, composites with zinc oxides, can help to overcome the problem. The catalytic activity of such a structure depends highly on the method by which it was prepared. In this work, we used the alkali coprecipitation of Fe2+ and Ni2+ ions, whose hydroxides have similar values of solubility products (SPs), to prepare the most stoichiometric and structurally and compositionally homogeneous nickel ferrite precursor. The influence of the reaction parameters on the purity and particle size of the nickel ferrite phase was studied using experiment and data processing design. Spherical nanoparticles of 15.9 ± 1.1 nm in diameter were produced under the identified optimal conditions. The prepared material was used to manufacture various NiFe2O4/ZnO magnetic composites. The photocatalytic activity of the hybrid structures was shown in photodegradation of the Crystal Violet dye.
{"title":"Optimization of Nickel Ferrite Production Conditions for the Preparation of Magnetic Composite Photocatalysts","authors":"D. I. Nemkova, S. V. Saikova, A. E. Krolikov, E. V. Pikurova, A. S. Samoilo","doi":"10.1134/s0036023623603069","DOIUrl":"https://doi.org/10.1134/s0036023623603069","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Nonferrous metal ferrites are promising magnetic catalysts that can be easily separated from the reaction mixture after use by applying a magnetic field. However, these materials have fast electron–hole relaxation times, which reduces their activity in photoreactions. Hybrid ferrite-based nanostructures, for example, composites with zinc oxides, can help to overcome the problem. The catalytic activity of such a structure depends highly on the method by which it was prepared. In this work, we used the alkali coprecipitation of Fe<sup>2+</sup> and Ni<sup>2+</sup> ions, whose hydroxides have similar values of solubility products (SPs), to prepare the most stoichiometric and structurally and compositionally homogeneous nickel ferrite precursor. The influence of the reaction parameters on the purity and particle size of the nickel ferrite phase was studied using experiment and data processing design. Spherical nanoparticles of 15.9 ± 1.1 nm in diameter were produced under the identified optimal conditions. The prepared material was used to manufacture various NiFe<sub>2</sub>O<sub>4</sub>/ZnO magnetic composites. The photocatalytic activity of the hybrid structures was shown in photodegradation of the Crystal Violet dye.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"6 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551847","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}
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