Pub Date : 2024-07-28DOI: 10.31857/s0044457x24020013
A. A. Ostroushko, I. Gagarin, E. V. Kudyukov, T. Y. Zhulanova, A. E. Permyakova, O. Russkikh
The formation of electric charges during the synthesis of complex oxide materials based on strontium hexaferrite SrFe12O19, including doped with lanthanum and cobalt ions, via the combustion of nitrate-organic precursors has been established. Precursors included polyvinyl alcohol or glycine as organic component. The intensity of charge generation was lower for precursors containing a larger amount of organic component. Data on the magnetic characteristics of the samples were obtained: magnetization, coercive force. The influence of an external magnetic field during the synthesis of hexaferrites significantly affected the coercive force of the samples and allowed to increase its values due to the formation of extended ensembles of nanoparticles. At the same time, such an effect on samples with a relatively low level of charge generation during precursor combustion was more effective. The relationship between the factors influencing the formation of extended aggregates is analyzed. The Sr0.8La0.2Fe11.8Co0.2O19 samples had the maximum coercive force. One of the techniques for increasing the coercive force is a two-stage thermomagnetic 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: the effect of charges arising in precursors and an external magnetic field","authors":"A. A. Ostroushko, I. Gagarin, E. V. Kudyukov, T. Y. Zhulanova, A. E. Permyakova, O. Russkikh","doi":"10.31857/s0044457x24020013","DOIUrl":"https://doi.org/10.31857/s0044457x24020013","url":null,"abstract":"The formation of electric charges during the synthesis of complex oxide materials based on strontium hexaferrite SrFe12O19, including doped with lanthanum and cobalt ions, via the combustion of nitrate-organic precursors has been established. Precursors included polyvinyl alcohol or glycine as organic component. The intensity of charge generation was lower for precursors containing a larger amount of organic component. Data on the magnetic characteristics of the samples were obtained: magnetization, coercive force. The influence of an external magnetic field during the synthesis of hexaferrites significantly affected the coercive force of the samples and allowed to increase its values due to the formation of extended ensembles of nanoparticles. At the same time, such an effect on samples with a relatively low level of charge generation during precursor combustion was more effective. The relationship between the factors influencing the formation of extended aggregates is analyzed. The Sr0.8La0.2Fe11.8Co0.2O19 samples had the maximum coercive force. One of the techniques for increasing the coercive force is a two-stage thermomagnetic 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.","PeriodicalId":360124,"journal":{"name":"Журнал неорганической химии","volume":"5 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141796464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-28DOI: 10.31857/s0044457x24020073
O. Trofimova, A. V. Maleeva, M. V. Arseniev, T. N. Kocherova, A. V. Cherkasov, I. Yakushev, P. V. Dorovatovski, A. Piskunov
Copper(II) complexes on the basis of 3,5-di-tert-octyl-o-benzoquinone (3,5-tOc-Q) have been synthesised. Derivatives of the composition: (3,5-tOc-SQ)2Cu (I), (3,5-tOc-Cat)Cu(Phen) (II), (3,5-tOc-Cat)Cu(DPQ) (III) and (3,5-tOc-Cat)Cu(DPPZ) (IV), where 3,5-tOc-SQ is the anion radical of 3,5-di-tert-octyl-o-benzoquinone, 3,5-tOc-Cat is the dianion of 3,5-di-tert-octyl-o-benzoquinone, Phen is phenanthroline, DPQ is dipyrido[3,2-d: 2′,3′-f]quinoxaline, DPPZ — dipyrido[3,2-a:2′,3′-c]phenazine. The molecular and crystal structures of complexes I and II were established by X-ray diffraction. The spectral characteristics of the synthesised copper(II) derivatives have been investigated by electronic absorption spectroscopy. Crystallographic data for compounds I and II have been deposited in the Cambridge Structural Data Bank (No. 2291614 for I and No. 2279045 for II).
以 3,5-二叔辛基邻苯醌(3,5-tOc-Q)为基础合成了铜(II)配合物。组成的衍生物:(3,5-tOc-SQ)2Cu (I)、(3,5-tOc-Cat)Cu(Phen) (II)、(3,5-tOc-Cat)Cu(DPQ) (III) 和 (3,5-tOc-Cat)Cu(DPPZ) (IV),其中 3,5-tOc-SQ 是 3、5-二叔辛基邻苯醌的阴离子基,3,5-tOc-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 - 二吡啶并[3,2-a:2′,3′-c]吩嗪。通过 X 射线衍射确定了复合物 I 和 II 的分子和晶体结构。电子吸收光谱研究了合成的铜(II)衍生物的光谱特性。化合物 I 和 II 的晶体学数据已存入剑桥结构数据库(I 编号 2291614,II 编号 2279045)。
{"title":"Copper(II) complexes with mono- and doubly reduced forms of 3,5-di-tert-octyl-o-benzoquinone","authors":"O. Trofimova, A. V. Maleeva, M. V. Arseniev, T. N. Kocherova, A. V. Cherkasov, I. Yakushev, P. V. Dorovatovski, A. Piskunov","doi":"10.31857/s0044457x24020073","DOIUrl":"https://doi.org/10.31857/s0044457x24020073","url":null,"abstract":"Copper(II) complexes on the basis of 3,5-di-tert-octyl-o-benzoquinone (3,5-tOc-Q) have been synthesised. Derivatives of the composition: (3,5-tOc-SQ)2Cu (I), (3,5-tOc-Cat)Cu(Phen) (II), (3,5-tOc-Cat)Cu(DPQ) (III) and (3,5-tOc-Cat)Cu(DPPZ) (IV), where 3,5-tOc-SQ is the anion radical of 3,5-di-tert-octyl-o-benzoquinone, 3,5-tOc-Cat is the dianion of 3,5-di-tert-octyl-o-benzoquinone, Phen is phenanthroline, DPQ is dipyrido[3,2-d: 2′,3′-f]quinoxaline, DPPZ — dipyrido[3,2-a:2′,3′-c]phenazine. The molecular and crystal structures of complexes I and II were established by X-ray diffraction. The spectral characteristics of the synthesised copper(II) derivatives have been investigated by electronic absorption spectroscopy. Crystallographic data for compounds I and II have been deposited in the Cambridge Structural Data Bank (No. 2291614 for I and No. 2279045 for II).","PeriodicalId":360124,"journal":{"name":"Журнал неорганической химии","volume":"5 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141796466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-28DOI: 10.31857/s0044457x24020054
V. Serezhkin, М. S. Grigoriev, М. V. Sukacheva, V. Losev, L. B. Serezhkina
Crystal structure Na3[UO2(C2O4)F3] · 4H2O (I), K3[UO2(C2O4)F3] (II), K3[UO2(C2O4)2F] · 3H2O (III) and Cs[UO2(C2O4)F] · H2O (IV) first studied by X-ray diffraction. Uranium–containing structural units are complexes [UO2(C2O4)F3]3ˉ (for I and II), [UO2(C2O4)2F]3- (III) and [UO2(C2O4)F]- (IV), accordingly with crystal chemical formulas А(В01)M13, А(В01)2M1 and А(Q02)M1, where A = UO22+, B01 or Q02 = C2O42-, and M1 = F- . In all compounds U(VI) atoms implement pentagonal-bipyramidal coordination, at that in I—III uranyl complexes have single–core structure, and in IV crystals–chain structure which is similar for the well — known for [UO2(C2O4)(H2O)] · 2H2O. The obtained results suggest that a sharp increase in the solubility of uranyl oxalate trihydrate in aqueous solutions with the addition of fluorides is due to the well-known effect of structural depolymerization of coordination polymers of d- or f-metals in the presence of fluoride ions. Semi-empirical calculation and comparison of calculated and experimental oscillation frequencies in IR spectra II and IV are carried out.
晶体结构 Na3[UO2(C2O4)F3] - 4H2O (I)、K3[UO2(C2O4)F3] (II)、K3[UO2(C2O4)2F] - 3H2O (III) 和 Cs[UO2(C2O4)F] - H2O (IV) 首次通过 X 射线衍射进行了研究。含铀结构单元是[UO2(C2O4)F3]3ˉ复合物(I 和 II)、[UO2(C2O4)2F]3-(III)和[UO2(C2O4)F]-(IV)、相应的晶体化学式为 А(В01)M13、А(В01)2M1 和 А(Q02)M1,其中 A = UO22+,B01 或 Q02 = C2O42-,M1 = F-。在所有化合物中,U(VI) 原子都具有五角双锥配位,其中 I-III 尿苷配合物具有单核结构,而 IV 尿苷配合物则具有链状结构,这与众所周知的 [UO2(C2O4)(H2O)] - 2H2O 类似。研究结果表明,三水合草酸铀酰在水溶液中的溶解度随着氟化物的加入而急剧增加,这是由于众所周知的 d 或 f 金属配位聚合物在氟离子存在下的结构解聚效应。对红外光谱 II 和 IV 中的振荡频率进行了半经验计算并比较了计算结果和实验结果。
{"title":"Alkaline Metal Fluoroxalatouranylates: Structure and Some Properties","authors":"V. Serezhkin, М. S. Grigoriev, М. V. Sukacheva, V. Losev, L. B. Serezhkina","doi":"10.31857/s0044457x24020054","DOIUrl":"https://doi.org/10.31857/s0044457x24020054","url":null,"abstract":"Crystal structure Na3[UO2(C2O4)F3] · 4H2O (I), K3[UO2(C2O4)F3] (II), K3[UO2(C2O4)2F] · 3H2O (III) and Cs[UO2(C2O4)F] · H2O (IV) first studied by X-ray diffraction. Uranium–containing structural units are complexes [UO2(C2O4)F3]3ˉ (for I and II), [UO2(C2O4)2F]3- (III) and [UO2(C2O4)F]- (IV), accordingly with crystal chemical formulas А(В01)M13, А(В01)2M1 and А(Q02)M1, where A = UO22+, B01 or Q02 = C2O42-, and M1 = F- . In all compounds U(VI) atoms implement pentagonal-bipyramidal coordination, at that in I—III uranyl complexes have single–core structure, and in IV crystals–chain structure which is similar for the well — known for [UO2(C2O4)(H2O)] · 2H2O. The obtained results suggest that a sharp increase in the solubility of uranyl oxalate trihydrate in aqueous solutions with the addition of fluorides is due to the well-known effect of structural depolymerization of coordination polymers of d- or f-metals in the presence of fluoride ions. Semi-empirical calculation and comparison of calculated and experimental oscillation frequencies in IR spectra II and IV are carried out.","PeriodicalId":360124,"journal":{"name":"Журнал неорганической химии","volume":"11 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141796819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-28DOI: 10.31857/s0044457x24020121
A. Pavlikov, S. V. Saikova, A. Samoilo, D. V. Karpov, S. A. Novikova
Copper (II) oxide nanoparticles are promising materials for applications in catalysis, biomedicine and photovoltaics. It is also possible to use them for the preparation of nanocomposites and hybrid nanoparticles. This work presents a new method for the synthesis of CuO nanoparticles, which allows their one-step preparation without washing and heating. The proposed anion-exchange deposition method is simple, fast and easily reproducible under normal laboratory conditions. It is shown that anion-exchange precipitation of copper in the presence of the polysaccharide dextran-40 from copper chloride and sulphate solutions produces well crystallised hydroxychloride Cu2Cl(OH)3 and hydroxysulphate Cu4(SO4)(OH)6, respectively, and from copper nitrate a weakly crystallised Cu(OH)2 phase. In the absence of polysaccharide, copper oxide nanoparticles are formed irrespective of the nature of the anion of the parent salt. The obtained materials were used to obtain hydrosols with high aggregation and sedimentation stability over a wide pH range (from 5 to 11). These sols are stable for more than 3 months at a concentration of 2 g/l (the average hydrodynamic diameter of the particles is 245 nm; the average ζ-potential is -31.1 mV). Based on the study of the optical and electronic properties of the obtained hydrosols, it was found that they could be of interest for photocatalysis and application in optoelectronic devices.
{"title":"Synthesis of copper(II) oxide nanoparticles by anion-exchange resin precipitation and production of their stable hydrosols","authors":"A. Pavlikov, S. V. Saikova, A. Samoilo, D. V. Karpov, S. A. Novikova","doi":"10.31857/s0044457x24020121","DOIUrl":"https://doi.org/10.31857/s0044457x24020121","url":null,"abstract":"Copper (II) oxide nanoparticles are promising materials for applications in catalysis, biomedicine and photovoltaics. It is also possible to use them for the preparation of nanocomposites and hybrid nanoparticles. This work presents a new method for the synthesis of CuO nanoparticles, which allows their one-step preparation without washing and heating. The proposed anion-exchange deposition method is simple, fast and easily reproducible under normal laboratory conditions. It is shown that anion-exchange precipitation of copper in the presence of the polysaccharide dextran-40 from copper chloride and sulphate solutions produces well crystallised hydroxychloride Cu2Cl(OH)3 and hydroxysulphate Cu4(SO4)(OH)6, respectively, and from copper nitrate a weakly crystallised Cu(OH)2 phase. In the absence of polysaccharide, copper oxide nanoparticles are formed irrespective of the nature of the anion of the parent salt. The obtained materials were used to obtain hydrosols with high aggregation and sedimentation stability over a wide pH range (from 5 to 11). These sols are stable for more than 3 months at a concentration of 2 g/l (the average hydrodynamic diameter of the particles is 245 nm; the average ζ-potential is -31.1 mV). Based on the study of the optical and electronic properties of the obtained hydrosols, it was found that they could be of interest for photocatalysis and application in optoelectronic devices.","PeriodicalId":360124,"journal":{"name":"Журнал неорганической химии","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141796951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-28DOI: 10.31857/s0044457x24020135
D. I. Nemkova, S. V. Saikova, A. E. Krolikov, E. Pikurova, A. Samoilo
Ferrites of non-ferrous metals are promising magnetic catalysts that can be easily separated from the reaction mixture after use by applying a magnetic field. However, these materials have a fast electron-hole relaxation time, which reduces their activity in photoreactions. This problem is overcome by creating hybrid nanostructures based on ferrites, for example with zinc oxides. The catalytic activity of such structures depends highly on the method of their synthesis. In this work, the alkaline co-precipitation of Fe2+ and Ni2+ ions, which have similar values for hydroxides, was used to obtain stoichiometric and homogeneous nickel ferrite precursors. The influence of the reaction parameters on the purity of the nickel ferrite phase and the size of the particles was studied using the experimental design technique. Spherical nanoparticles 15.9 ± 1.1 nm in diameter were produced under the optimal conditions identified. Based on the obtained material, NiFe2O4/ZnO magnetic composites of different quantitative compositions were prepared. The photocatalytic activity of the hybrid structures was demonstrated by photodegradation of crystal violet dye.
{"title":"Optimisation of nickel ferrite production conditions for the preparation of magnetic composite photocatalysts","authors":"D. I. Nemkova, S. V. Saikova, A. E. Krolikov, E. Pikurova, A. Samoilo","doi":"10.31857/s0044457x24020135","DOIUrl":"https://doi.org/10.31857/s0044457x24020135","url":null,"abstract":"Ferrites of non-ferrous metals are promising magnetic catalysts that can be easily separated from the reaction mixture after use by applying a magnetic field. However, these materials have a fast electron-hole relaxation time, which reduces their activity in photoreactions. This problem is overcome by creating hybrid nanostructures based on ferrites, for example with zinc oxides. The catalytic activity of such structures depends highly on the method of their synthesis. In this work, the alkaline co-precipitation of Fe2+ and Ni2+ ions, which have similar values for hydroxides, was used to obtain stoichiometric and homogeneous nickel ferrite precursors. The influence of the reaction parameters on the purity of the nickel ferrite phase and the size of the particles was studied using the experimental design technique. Spherical nanoparticles 15.9 ± 1.1 nm in diameter were produced under the optimal conditions identified. Based on the obtained material, NiFe2O4/ZnO magnetic composites of different quantitative compositions were prepared. The photocatalytic activity of the hybrid structures was demonstrated by photodegradation of crystal violet dye.","PeriodicalId":360124,"journal":{"name":"Журнал неорганической химии","volume":"9 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141797009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-28DOI: 10.31857/s0044457x24020061
K. S. Khusenov, B. B. Umarov, K. K. Turgunov, O. Z. Bakhranova, T. B. Aliev, B. Ibragimov
Zn(II) complexes of the composition [ZnLn2X2] and [ZnLn3(NO3)2] were synthesized, where n = 1, 2; X=Cl, Br, I; L1=2-aminothiadiazole-1,3,4, L2=2-amino-5-methylthiadiazole-1,3,4. The obtained complexes were studied by elemental analysis methods, IR and 1H NMR spectroscopy. The structure of the [ZnL22Br2] complex was determined by the RSA method (CIF file CCDC No. 2251742). The ligand molecules of 2-amino-5-R-thiadiazoles-1,3,4 (R = –H, –CH3) are coordinated monodentately by an 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, in the coordination sphere of which two halide atoms and two endocyclic nitrogen atoms are located. During complexation in the spectrum of the solution of the [ZnL22Br2] complex, coordinated L2 ligands undergo amino-imine tautomerization into a heterocyclic amine with a nitrogen atom in a heterocycle. The polyhedron of the central atom for nitrate complexes is a slightly distorted trigonal bipyramide, in the coordination sphere of which three nitrogen atoms of ligands are located in the equatorial plane and two oxygen atoms of two nitrate anions in the axial position.
{"title":"Zinc(II) complexes with thiadiazole derivatives-1,3,4","authors":"K. S. Khusenov, B. B. Umarov, K. K. Turgunov, O. Z. Bakhranova, T. B. Aliev, B. Ibragimov","doi":"10.31857/s0044457x24020061","DOIUrl":"https://doi.org/10.31857/s0044457x24020061","url":null,"abstract":"Zn(II) complexes of the composition [ZnLn2X2] and [ZnLn3(NO3)2] were synthesized, where n = 1, 2; X=Cl, Br, I; L1=2-aminothiadiazole-1,3,4, L2=2-amino-5-methylthiadiazole-1,3,4. The obtained complexes were studied by elemental analysis methods, IR and 1H NMR spectroscopy. The structure of the [ZnL22Br2] complex was determined by the RSA method (CIF file CCDC No. 2251742). The ligand molecules of 2-amino-5-R-thiadiazoles-1,3,4 (R = –H, –CH3) are coordinated monodentately by an 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, in the coordination sphere of which two halide atoms and two endocyclic nitrogen atoms are located. During complexation in the spectrum of the solution of the [ZnL22Br2] complex, coordinated L2 ligands undergo amino-imine tautomerization into a heterocyclic amine with a nitrogen atom in a heterocycle. The polyhedron of the central atom for nitrate complexes is a slightly distorted trigonal bipyramide, in the coordination sphere of which three nitrogen atoms of ligands are located in the equatorial plane and two oxygen atoms of two nitrate anions in the axial position.","PeriodicalId":360124,"journal":{"name":"Журнал неорганической химии","volume":"5 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141797154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-28DOI: 10.31857/s0044457x24020038
M. A. Zarudskikh, E. G. Ilina, A. S. Mankevich, V. P. Smagin
Zinc sulfide doped with Mn2+ ions was synthesized in a homogeneous dodecane medium by the method of emerging reagents. By methods of chemical and X-ray phase analysis, IR spectroscopy, electron microprobe microscopy, identification of products was carried out, photographs of the surface of powder particles (SEM) were recorded. Based on the totality of the results, a conclusion is made about the formation of nanoscale objects having a polytype structure with a predominance of distorted cubic crystals forming agglomerates up to 10 microns in size in ZnS powder and up to 100 microns in ZnS–Mn powder. The formation of nanoscale ZnS particles is confirmed by spectral data. The effect of manganese ions on the photoluminescence (FL) of the powder is manifested by a change in the type of the descending branch of the ZnS–Mn FL band, it 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 alloying 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":"10.31857/s0044457x24020038","DOIUrl":"https://doi.org/10.31857/s0044457x24020038","url":null,"abstract":"Zinc sulfide doped with Mn2+ ions was synthesized in a homogeneous dodecane medium by the method of emerging reagents. By methods of chemical and X-ray phase analysis, IR spectroscopy, electron microprobe microscopy, identification of products was carried out, photographs of the surface of powder particles (SEM) were recorded. Based on the totality of the results, a conclusion is made about the formation of nanoscale objects having a polytype structure with a predominance of distorted cubic crystals forming agglomerates up to 10 microns in size in ZnS powder and up to 100 microns in ZnS–Mn powder. The formation of nanoscale ZnS particles is confirmed by spectral data. The effect of manganese ions on the photoluminescence (FL) of the powder is manifested by a change in the type of the descending branch of the ZnS–Mn FL band, it is associated with recombination processes at the levels of defects formed by Mn2+ ions in the ZnS structure at their low concentration.","PeriodicalId":360124,"journal":{"name":"Журнал неорганической химии","volume":"5 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141797089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1134/s0044457x19110126
Е. А. Малинина, Л. В. Гоева, Г. А. Бузанов, В. В. Авдеева, Николай Николаевич Ефимов, И. В. Козерожец, Н. Т. Кузнецов
{"title":"Синтез и физико-химические свойства бинарных боридов кобальта(II). Термическое восстановление комплексов-прекурсоров [CoL\u0000 \u0000 ][B\u0000 \u0000 10\u0000 \u0000 H\u0000 \u0000 10\u0000 \u0000 ] (L = H\u0000 \u0000 2","authors":"Е. А. Малинина, Л. В. Гоева, Г. А. Бузанов, В. В. Авдеева, Николай Николаевич Ефимов, И. В. Козерожец, Н. Т. Кузнецов","doi":"10.1134/s0044457x19110126","DOIUrl":"https://doi.org/10.1134/s0044457x19110126","url":null,"abstract":"","PeriodicalId":360124,"journal":{"name":"Журнал неорганической химии","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115476590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}