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Structural Design of Eu2+-Containing Glasses and Glass-Ceramics Based on the BaO–ZrO2–SiO2–MgF2 System for LED Application 基于 BaO-ZrO2-SiO2-MgF2 体系的含 Eu2+ 玻璃和玻璃陶瓷的结构设计，用于 LED 应用
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2023-12-25 DOI: 10.1134/S0012500823700180
S. K. Evstropiev,  V. L. Stolyarova, N. B. Knyazyan, G. G. Manukyan, A. V. Shashkin
{"title":"Structural Design of Eu2+-Containing Glasses and Glass-Ceramics Based on the BaO–ZrO2–SiO2–MgF2 System for LED Application","authors":"S. K. Evstropiev,&nbsp; V. L. Stolyarova,&nbsp;N. B. Knyazyan,&nbsp;G. G. Manukyan,&nbsp;A. V. Shashkin","doi":"10.1134/S0012500823700180","DOIUrl":"10.1134/S0012500823700180","url":null,"abstract":"<p>An approach to designing the structure of Eu<sup>2+</sup>-containing silicate glass-crystalline materials was implemented for the first time, using which a rare-earth activator is introduced into Ba-containing silicates formed during glass crystallization. Eu<sup>2+</sup>-activated fluorine-containing glasses and glass-ceramics in the MgO–BaO–ZrO<sub>2</sub>–SiO<sub>2</sub> system were synthesized, and their crystal structure and luminescence properties were studied. It was shown that the simultaneous incorporation of Eu into several different silicate crystals formed during the crystallization of glasses yields a material with a broad luminescence band in the visible part of the spectrum. A study of the luminescence excitation and emission spectra of glass demonstrated the possibility of excitation energy transfer from Eu<sup>2+</sup> ions to Eu<sup>3+</sup> ions. The approach proposed for the first time to designing the structure of glass-crystalline materials is quite promising for the further creation of new optical media used in high-power light-emitting diodes.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":"512 2","pages":"304 - 308"},"PeriodicalIF":0.8,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139057187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Formation in the Mg3 – nNinBPO7 System Mg3 - nNinBPO7 系统中的相形成
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2023-12-25 DOI: 10.1134/S0012500823600645
M. N. Smirnova, M. A. Kop’eva, G. D. Nipan, G. E. Nikiforova, A. D. Yapryntsev, A. A. Arkhipenko
{"title":"Phase Formation in the Mg3 – nNinBPO7 System","authors":"M. N. Smirnova,&nbsp;M. A. Kop’eva,&nbsp;G. D. Nipan,&nbsp;G. E. Nikiforova,&nbsp;A. D. Yapryntsev,&nbsp;A. A. Arkhipenko","doi":"10.1134/S0012500823600645","DOIUrl":"10.1134/S0012500823600645","url":null,"abstract":"<p>Mg<sub>3 –</sub> <sub><i>n</i></sub>Ni<sub><i>n</i></sub>BPO<sub>7</sub> samples (<i>n</i> = 0–3) were synthesized by gel combustion followed by annealing at 980°C, cooled under inertial-thermal conditions, and then studied by X-ray powder diffraction analysis, IR spectroscopy, and X-ray fluorescence spectrometry. A crystalline phase of Ni<sub>3</sub>BPO<sub>7</sub> with the β-Zn<sub>3</sub>BPO<sub>7</sub> structure was experimentally obtained for the first time. When varying the composition of the samples from Mg<sub>3</sub>BPO<sub>7</sub> to Ni<sub>3</sub>BPO<sub>7</sub>, in borophosphate, a region of coexistence of α‑Mg<sub>3</sub>BPO<sub>7</sub> and β-Ni<sub>3</sub>BPO<sub>7</sub> was discovered. Analysis of diffuse reflectance spectra of Mg<sub>1.5</sub>Ni<sub>1.5</sub>BPO<sub>7</sub> showed the presence of Ni<sup>2+</sup> cations in an environment different from the symmetrical octahedral or tetrahedral environment.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":"512 2","pages":"298 - 303"},"PeriodicalIF":0.8,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139057056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
New Efficient Approach to the Preparation of (+)-Camphor and (–)-Fenchone Anils under Homogeneous Catalysis Conditions 在均相催化条件下高效制备(+)-樟脑和(-)-葑酮苯胺的新方法
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2023-12-25 DOI: 10.1134/S0012500823600700
A. A. Vernigora, R. V. Brunilin, V. V. Burmistrov, A. V. Davidenko, M. B. Nawrozkij, N. A. Salykin, V. V. Chernyshov,  I. A. Novakov
{"title":"New Efficient Approach to the Preparation of (+)-Camphor and (–)-Fenchone Anils under Homogeneous Catalysis Conditions","authors":"A. A. Vernigora,&nbsp;R. V. Brunilin,&nbsp;V. V. Burmistrov,&nbsp;A. V. Davidenko,&nbsp;M. B. Nawrozkij,&nbsp;N. A. Salykin,&nbsp;V. V. Chernyshov,&nbsp; I. A. Novakov","doi":"10.1134/S0012500823600700","DOIUrl":"10.1134/S0012500823600700","url":null,"abstract":"<p>An efficient approach to the synthesis of (+)-camphor and (–)-fenchone anils has been developed, which involves the reaction of the corresponding bicyclic monoterpenoid ketones with substituted anilines in the presence of in situ prepared (<i>i</i>-PrO)<sub>2</sub>Ti(OTf)<sub>2</sub>·(<i>i</i>-PrOH)<sub>2</sub> complex, as a homogeneous catalyst, and (<i>i-</i>PrO)<sub>4</sub>Ti, as a dehydrating agent. The advantage of the suggested method lies not only in obtaining target products in good yield and high purity, but also in a simplified procedure for their isolation. These products are of interest as potential pharmacologically active compounds, antioxidants for rubber mixtures, and components of 3D-printing formulations.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":"512 1","pages":"260 - 265"},"PeriodicalIF":0.8,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139057113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Single-Atom Alloy Pd1Ag6/Al2O3 Egg-Shell Catalyst for Selective Acetylene Hydrogenation 用于选择性乙炔加氢的单原子合金 Pd1Ag6/Al2O3 蛋壳催化剂
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2023-12-25 DOI: 10.1134/S0012500823600736
I. S. Mashkovsky, D. P. Melnikov, P. V. Markov, G. N. Baeva, N. S. Smirnova, G. O. Bragina, A. Yu. Stakheev
{"title":"Single-Atom Alloy Pd1Ag6/Al2O3 Egg-Shell Catalyst for Selective Acetylene Hydrogenation","authors":"I. S. Mashkovsky,&nbsp;D. P. Melnikov,&nbsp;P. V. Markov,&nbsp;G. N. Baeva,&nbsp;N. S. Smirnova,&nbsp;G. O. Bragina,&nbsp;A. Yu. Stakheev","doi":"10.1134/S0012500823600736","DOIUrl":"10.1134/S0012500823600736","url":null,"abstract":"<p>Here, we report the synthesis of a single-atom alloy Pd<sub>1</sub>Ag<sub>6</sub>/Al<sub>2</sub>O<sub>3</sub> catalyst with an egg-shell distribution of the active component over the catalyst granules for the selective hydrogenation of acetylene traces in ethylene. The formation of an egg-shell structure has been confirmed by electron probe microanalysis, which demonstrates that metals are predominantly localized at a depth of 130–160 µm from the granule surface. Transmission electron microscopy and X-ray photoelectron spectroscopy have provided evidence of the formation of a PdAg substitutional solid solution with electron density transfer from Ag to Pd. The formation of Pd<sub>1</sub> single sites has been confirmed by IR spectra of adsorbed CO. In the selective hydrogenation of acetylene, the synthesized single-atom alloy Pd<sub>1</sub>Ag<sub>6</sub>/Al<sub>2</sub>O<sub>3</sub> with an egg-shell distribution shows high selectivity, which radically exceeds the selectivity of the palladium counterpart.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":"512 2","pages":"272 - 280"},"PeriodicalIF":0.8,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139057147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Chiral N-(Octahydro-2H-chromen-4-yl)-2-(dialkylamino)acetamides: Synthesis and Analgesic Activity 手性 N-(八氢-2H-色烯-4-基)-2-(二烷基氨基)乙酰胺：合成与镇痛活性
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2023-12-25 DOI: 10.1134/S0012500823600694
N. S. Li-Zhulanov, K. M. Nikolaichuk, Yu. V. Gatilov, K. P. Volcho, M. V. Khvostov, T. G. Tolstikova,  N. F. Salakhutdinov
{"title":"Chiral N-(Octahydro-2H-chromen-4-yl)-2-(dialkylamino)acetamides: Synthesis and Analgesic Activity","authors":"N. S. Li-Zhulanov,&nbsp;K. M. Nikolaichuk,&nbsp;Yu. V. Gatilov,&nbsp;K. P. Volcho,&nbsp;M. V. Khvostov,&nbsp;T. G. Tolstikova,&nbsp; N. F. Salakhutdinov","doi":"10.1134/S0012500823600694","DOIUrl":"10.1134/S0012500823600694","url":null,"abstract":"<p>A number of new derivatives of octahydro-2<i>H</i>-chromene based on monoterpenoid (–)-isopulegol has been synthesized. The composition and structure of the products have been established using NMR spectroscopy, high-resolution mass spectrometry, and X-ray diffraction analysis. It has been shown that the majority of obtained compounds show high analgesic activity in vivo. (4<i>S</i>)‑Diastereomers of morpholinoacetamide derivatives of octahydro-2<i>H</i>-chromene showed the highest efficiency in both tests (acetic acid-induced writhing test and hot plate test).</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":"512 1","pages":"242 - 248"},"PeriodicalIF":0.8,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139057106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Synthesis of Deuterium-Labelled Salicylcarnosine 氘标记水杨酸肌肽的合成
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2023-10-07 DOI: 10.1134/S0012500823600542
V. P. Shevchenko, I. Yu. Nagaev, O. I. Kulikova,  N. F. Myasoedov
{"title":"Synthesis of Deuterium-Labelled Salicylcarnosine","authors":"V. P. Shevchenko,&nbsp;I. Yu. Nagaev,&nbsp;O. I. Kulikova,&nbsp; N. F. Myasoedov","doi":"10.1134/S0012500823600542","DOIUrl":"10.1134/S0012500823600542","url":null,"abstract":"<p>Effect of temperature on the efficiency of deuterium introduction into a new biologically active compound salicylcarnosine (SC) has been studied. Gaseous deuterium and heavy water were used as deuterium sources. The synthesis of labelled SC by a solid-phase method at 190°C leads to formation of [D]SC in 53% yield and deuterium content about 4.8 atoms per molecule. It has been shown that isotope exchange between SC protons and deuterium water proceeds more efficiently after preliminary treatment of catalyst with gaseous deuterium at ambient temperature. [D]SC forms in 46% yield and contains about 7.3 deuterium atoms per molecule. The preparative synthesis of labelled SC by this procedure at 190°C results in [D]SC yield of 60–70% at deuterium content about 6.2 atoms per molecule. The new procedure for the activation of deuterium inclusion in peptides opens additional opportunities for preparing highly labelled compounds.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":"511 1","pages":"181 - 185"},"PeriodicalIF":0.8,"publicationDate":"2023-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41088818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Erratum to: Biochemical Basis of the Antimicrobial Activity of Quinazolinone Derivatives in the Light of Insights into the Features of the Chemical Structure and Ways of Binding to Target Molecules. A Review 勘误：喹唑啉酮衍生物抗菌活性的生化基础--基于对其化学结构特征和与靶分子结合方式的深入了解。综述
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2023-10-07 DOI: 10.1134/S0012500823970013
M. A. Samotrueva, A. A. Starikova, O. A. Bashkina, A. A. Tsibizova, A. V. Borisov, D. V. Merezhkina, I. N. Tyurenkov, A. A. Ozerov
{"title":"Erratum to: Biochemical Basis of the Antimicrobial Activity of Quinazolinone Derivatives in the Light of Insights into the Features of the Chemical Structure and Ways of Binding to Target Molecules. A Review","authors":"M. A. Samotrueva,&nbsp;A. A. Starikova,&nbsp;O. A. Bashkina,&nbsp;A. A. Tsibizova,&nbsp;A. V. Borisov,&nbsp;D. V. Merezhkina,&nbsp;I. N. Tyurenkov,&nbsp;A. A. Ozerov","doi":"10.1134/S0012500823970013","DOIUrl":"10.1134/S0012500823970013","url":null,"abstract":"","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":"511 1","pages":"186 - 186"},"PeriodicalIF":0.8,"publicationDate":"2023-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41088816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Redox Nanostructuring of Biporous Nickel(II) Sintered Using a Space Holder 使用空间支架烧结的多孔镍（II）的氧化还原纳米结构
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2023-10-07 DOI: 10.1134/S001250082360044X
A. G. Gnedovets, V. A. Zelenskii, V. S. Shustov,  M. I. Alymov
{"title":"Redox Nanostructuring of Biporous Nickel(II) Sintered Using a Space Holder","authors":"A. G. Gnedovets,&nbsp;V. A. Zelenskii,&nbsp;V. S. Shustov,&nbsp; M. I. Alymov","doi":"10.1134/S001250082360044X","DOIUrl":"10.1134/S001250082360044X","url":null,"abstract":"<p>Permeable nickel metallic and nickel oxide ceramic materials with nanostructured surface and multilevel hierarchical porosity were created by cyclic redox post-treatment of biporous nickel(II) consolidated in the sintering–dissolution process. Additional levels of intraparticle porosity—Kirkendall pores and shrinkage nanopores—were formed during the stages of high-temperature oxidation in air and reduction in hydrogen, respectively.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":"511 2","pages":"191 - 196"},"PeriodicalIF":0.8,"publicationDate":"2023-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41088828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
1,3-Dehydroadamantane and Its Derivatives: A Versatile Synthetic Platform for the Preparation of Functional Compounds with a Cage Structure. A Review 1,3-脱氢金刚烷及其衍生物：制备笼状结构功能化合物的通用合成平台。综述
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2023-10-07 DOI: 10.1134/S0012500823600566
V. M. Mokhov, G. M. Butov,  I. A. Novakov
{"title":"1,3-Dehydroadamantane and Its Derivatives: A Versatile Synthetic Platform for the Preparation of Functional Compounds with a Cage Structure. A Review","authors":"V. M. Mokhov,&nbsp;G. M. Butov,&nbsp; I. A. Novakov","doi":"10.1134/S0012500823600566","DOIUrl":"10.1134/S0012500823600566","url":null,"abstract":"<p>A promising strategy in the synthesis of functional compounds with a cage structure is the use of 1,3-dehydroadamantane (tetracyclo[3.3.1.1.<sup>3,7</sup>.0.<sup>1,3</sup>]decane; 1,3-DHA; bridging [3.3.1]propellane) and its derivatives that are capable of restoring the adamantane structure in their reactions. The review provides information on the methods for the synthesis of 1,3-DHA, spectral characteristics, probable intermediates generated from propellanes, and the advantages of their using: low-stage syntheses of difficult-to synthesize adamantane derivatives, atomic precision, and “green chemistry.” The reactions of 1,3-DHA with a wide range of organic compounds are considered, and its reactivity with respect to CH-, NH-, OH-, and SH-acids, as well as arenes, hydantoins, and heterocyclic compounds, is compared. New chemo- and regioselective methods for the one-step introduction of a 1-adamantyl group into the molecules of various substrates are classified. Particular attention is paid to the reactions of 1,3-DHA with various C–H acids, which enable the easy formation of C–C<sub>Ad</sub> bonds to give hard-to-synthesize adamantane derivatives. The influence of p<i>K</i><sub>a</sub> of the substrate on the selectivity of the reactions is demonstrated. Low-step methods for the synthesis of new adamantane derivatives, which have shown high activity as hsEH epoxide hydrolase inhibitors and antitumor agents, are described.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":"511 1","pages":"149 - 180"},"PeriodicalIF":0.8,"publicationDate":"2023-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41088817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Low-Temperature deN2O Catalyst Based on Co3O4 for a Single-Reactor Unit for the Removal of Nitrogen Oxides in Nitric Acid Production 用于硝酸生产中氮氧化物脱除的单反应器单元的Co3O4低温脱氮催化剂
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2023-10-07 DOI: 10.1134/S0012500823600347
L. A. Isupova, Yu. A. Ivanova
{"title":"Low-Temperature deN2O Catalyst Based on Co3O4 for a Single-Reactor Unit for the Removal of Nitrogen Oxides in Nitric Acid Production","authors":"L. A. Isupova,&nbsp;Yu. A. Ivanova","doi":"10.1134/S0012500823600347","DOIUrl":"10.1134/S0012500823600347","url":null,"abstract":"<p>Cesium-promoted cobalt spinel is promising as a catalyst for the low-temperature decomposition of nitrous oxide for use in the second stage of a single-reactor unit for the combined removal of nitrogen oxides. This work studied the effect of the conditions for the preparation of granular and block bulk catalysts based on Co<sub>3</sub>O<sub>4</sub> by extrusion molding.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":"511 2","pages":"202 - 208"},"PeriodicalIF":0.8,"publicationDate":"2023-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41088801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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