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Control for selective sorption of heavy metals cations with anion exchanger AB-17-8 by modifying the surface with citrate groups 通过改变阴离子交换剂 AB-17-8 的表面柠檬酸基团，控制其对重金属阳离子的选择性吸附
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.042
Nazgul S. Murzakasymova , Nesipkhan A. Bektenov , Kiril V. Serebriakov , Egor S. Yelkin , Mikhail A. Gavrilenko
{"title":"Control for selective sorption of heavy metals cations with anion exchanger AB-17-8 by modifying the surface with citrate groups","authors":"Nazgul S. Murzakasymova ,&nbsp;Nesipkhan A. Bektenov ,&nbsp;Kiril V. Serebriakov ,&nbsp;Egor S. Yelkin ,&nbsp;Mikhail A. Gavrilenko","doi":"10.1016/j.mencom.2024.09.042","DOIUrl":"10.1016/j.mencom.2024.09.042","url":null,"abstract":"<div><div>The citric acid modification produces an intermediate layer on the AB-17-8:C<sub>6</sub>H<sub>8</sub>O<sub>7</sub> surface; the layer, on one hand, is firmly secured to the surface owing to the electrostatic coupling between the citrate anion and the positively charged trimethylammonium centers of the anion exchanger surface; on the other hand, it has carbonyl groups with a local negative electron density. The sorption of heavy metals cations occurs through coordination interactions <em>via</em> electrostatic mechanism with local centers of negative electron density, in particular, with the carbonylic oxygen atom.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 755-757"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433689","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
Performance of PdAu/Al2O3 egg-shell catalyst with isolated Pd1 sites for selective hydrogenation of acetylene 具有分离 Pd1 位点的 PdAu/Al2O3 蛋壳催化剂在乙炔选择性加氢中的性能
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.030
Igor S. Mashkovsky , Nadezhda S. Smirnova , Pavel V. Markov , Galina N. Baeva , Anastasia E. Vaulina , Dmitry P. Melnikova , Alexander Yu. Stakheev
{"title":"Performance of PdAu/Al2O3 egg-shell catalyst with isolated Pd1 sites for selective hydrogenation of acetylene","authors":"Igor S. Mashkovsky ,&nbsp;Nadezhda S. Smirnova ,&nbsp;Pavel V. Markov ,&nbsp;Galina N. Baeva ,&nbsp;Anastasia E. Vaulina ,&nbsp;Dmitry P. Melnikova ,&nbsp;Alexander Yu. Stakheev","doi":"10.1016/j.mencom.2024.09.030","DOIUrl":"10.1016/j.mencom.2024.09.030","url":null,"abstract":"<div><div>A herein proposed PdAu/Al<sub>2</sub>O<sub>3</sub> egg-shell catalyst for selective acetylene hydrogenation combines two factors to provide perfect performance: isolation of Pd<sub>1</sub> active sites by Au and an egg-shell distribution of the active phase across the catalyst pellets. The PdAu/Al<sub>2</sub>O<sub>3</sub> catalyst exhibits high acetylene hydrogenation activity at the level of Pd-catalysts and high intrinsic ethylene selectivity of Au-catalysts.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 718-720"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433693","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
Electrochemical oxidation of furans into 2,5-dimethoxy-2,5-dihydrofurans 将呋喃电化学氧化成 2,5-二甲氧基-2,5-二氢呋喃
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.033
Konstantin O. Titov , Artem N. Sinelnikov , Evgeniia P. Antoshkina , Ulyana I. Zaretskaya , Andrey K. Ratnikov , Ekaterina A. Khakina , Teimur M. Aliev
{"title":"Electrochemical oxidation of furans into 2,5-dimethoxy-2,5-dihydrofurans","authors":"Konstantin O. Titov ,&nbsp;Artem N. Sinelnikov ,&nbsp;Evgeniia P. Antoshkina ,&nbsp;Ulyana I. Zaretskaya ,&nbsp;Andrey K. Ratnikov ,&nbsp;Ekaterina A. Khakina ,&nbsp;Teimur M. Aliev","doi":"10.1016/j.mencom.2024.09.033","DOIUrl":"10.1016/j.mencom.2024.09.033","url":null,"abstract":"<div><div>Substituted 2,5-dimethoxy-2,5-dihydrofurans (<em>cis</em>/<em>trans</em> isomer mixtures) were obtained <em>via</em> the electrochemical oxidation of the corresponding furans in an undivided cell in methanol in the presence of bromides as mediators. The method is suitable for furans containing electron-donating groups.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 729-731"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432105","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
N-Vinylation of lactams with calcium carbide water system 内酰胺与碳化钙水体系的 N-乙烯基化反应
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.034
Yulia V. Gyrdymova, Sofya M. Zarubina, Konstantin S. Rodygin
{"title":"N-Vinylation of lactams with calcium carbide water system","authors":"Yulia V. Gyrdymova,&nbsp;Sofya M. Zarubina,&nbsp;Konstantin S. Rodygin","doi":"10.1016/j.mencom.2024.09.034","DOIUrl":"10.1016/j.mencom.2024.09.034","url":null,"abstract":"<div><div>Direct <em>N</em>-vinylation of lactams with calcium carbide water system was performed under super-basic conditions. The vinylation occurred exclusively at NH group leaving C<img>O function intact to afford cyclic <em>N</em>-vinyl amides in yields up to 97%. The obtained products are prospective monomers for the preparation of synthetic peptides.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 732-733"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432106","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
Polynitropyrazole derivatives of pentanitroisowurtzitane 五硝基异乌苏坦的多硝基吡唑衍生物
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.025
Sergei V. Nikitin , Nina I. Shlykova , Igor L. Dalinger , Gennady A. Smirnov , Igor N. Melnikov
{"title":"Polynitropyrazole derivatives of pentanitroisowurtzitane","authors":"Sergei V. Nikitin ,&nbsp;Nina I. Shlykova ,&nbsp;Igor L. Dalinger ,&nbsp;Gennady A. Smirnov ,&nbsp;Igor N. Melnikov","doi":"10.1016/j.mencom.2024.09.025","DOIUrl":"10.1016/j.mencom.2024.09.025","url":null,"abstract":"<div><div>High energetic compounds of pentanitroisowurtzitane series containing various polynitropyrazolyl substituents attached to the frame through a methylene linker were synthesized in two steps from the corresponding <em>NH</em> precursors and paraformaldehyde. The structures of the compounds obtained were characterized by spectral methods, and their energy characteristics were estimated.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 703-705"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433568","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
Molecular weight and spinnability of polyacrylonitrile: control with water and 1,8-diazabicyclo[5.4.0]undec-7-ene during anionic polymerization in dimethyl sulfoxide 聚丙烯腈的分子量和可纺性：在二甲亚砜中进行阴离子聚合时与水和 1,8-二氮杂双环[5.4.0]十一-7-烯的控制作用
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.037
Alexander E. Tarasov , Alexander A. Grishchuk , Yulia V. Podval’naya , Elmira R. Badamshina , Maria V. Mironova , Mikhail S. Kuzin , Ivan Yu. Skvortsov , Valerii G. Kulichikhin
{"title":"Molecular weight and spinnability of polyacrylonitrile: control with water and 1,8-diazabicyclo[5.4.0]undec-7-ene during anionic polymerization in dimethyl sulfoxide","authors":"Alexander E. Tarasov ,&nbsp;Alexander A. Grishchuk ,&nbsp;Yulia V. Podval’naya ,&nbsp;Elmira R. Badamshina ,&nbsp;Maria V. Mironova ,&nbsp;Mikhail S. Kuzin ,&nbsp;Ivan Yu. Skvortsov ,&nbsp;Valerii G. Kulichikhin","doi":"10.1016/j.mencom.2024.09.037","DOIUrl":"10.1016/j.mencom.2024.09.037","url":null,"abstract":"<div><div>A series of linear high molecular weight acrylonitrile homopolymers have been synthesized using controlled anionic polymerization. The possibility of producing polyacrylonitrile with a wide range of molecular weights by controlling the concentrations of metal-free initiator and water has been demonstrated. The resulting homopolymers exhibit excellent spinnability.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 740-742"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433563","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
Unusual condensation of acetone giving η3-allyl ligand in the [Pd(η3-C6H9O)(μ-Cl)]2 complex 丙酮与η3-烯丙基配体在[Pd(η3-C6H9O)(μ-Cl)]2 复合物中的非同寻常的缩合作用
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.040
Inessa A. Efimenko , Alexey S. Kubasov , Nina A. Ivanova , Olga S. Erofeeva , Ludmila I. Demina
{"title":"Unusual condensation of acetone giving η3-allyl ligand in the [Pd(η3-C6H9O)(μ-Cl)]2 complex","authors":"Inessa A. Efimenko ,&nbsp;Alexey S. Kubasov ,&nbsp;Nina A. Ivanova ,&nbsp;Olga S. Erofeeva ,&nbsp;Ludmila I. Demina","doi":"10.1016/j.mencom.2024.09.040","DOIUrl":"10.1016/j.mencom.2024.09.040","url":null,"abstract":"<div><div>A one-step reaction was discovered giving the h<sup>3</sup>-allyl complex [Pd(h<sup>3</sup>-C<sub>6</sub>H<sub>9</sub>O)(μ-Cl)]<sub>2</sub>. The formation of the substituted h<sup>3</sup>-allyl ligand in the complex occurs as a result of the condensation of acetone at room temperature in a solution containing [Pd(PhCN)<sub>2</sub>Cl<sub>2</sub>] and organic acids. The structure of the resulting Pd<sup>ii</sup> complex was determined by single crystal X-ray diffraction analysis.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 748-750"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433566","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
Comparative analysis of the adsorption properties of a carbon sorbent modified with sulfosalicylic acid solutions in the presence and absence of amino acids 用磺基水杨酸溶液改性的碳吸附剂在氨基酸存在和不存在时的吸附特性对比分析
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.043
Anna V. Sedanova, Maria S. Delyagina, Lidia G. P’yanova, Natalia V. Kornienko, Anastasia V. Vasilevich, Aleksandr V. Lavrenov
{"title":"Comparative analysis of the adsorption properties of a carbon sorbent modified with sulfosalicylic acid solutions in the presence and absence of amino acids","authors":"Anna V. Sedanova,&nbsp;Maria S. Delyagina,&nbsp;Lidia G. P’yanova,&nbsp;Natalia V. Kornienko,&nbsp;Anastasia V. Vasilevich,&nbsp;Aleksandr V. Lavrenov","doi":"10.1016/j.mencom.2024.09.043","DOIUrl":"10.1016/j.mencom.2024.09.043","url":null,"abstract":"<div><div>The adsorption properties of a carbon sorbent in relation to sulfosalicylic acid in an individual solution and with an added amino acid (arginine or phenylalanine) were determined. It has been shown that the addition of arginine to an aqueous solution of sulfosalicylic acid leads to an increase in the amount of sulfosalicylic acid adsorbed on the carbon sorbent. The sorbents modified in the presence of amino acids showed high adsorption capacity for the methylene blue dye.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 758-761"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433570","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
Microwave assisted cycloaddition of benzonitrile oxides to 1-iodobuta-1,3-diynes 微波辅助下苯腈氧化物与 1-碘丁-1,3-二炔的环化反应
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-07-01 DOI: 10.1016/j.mencom.2024.06.022
Mariia M. Efremova , Diana D. Khashimova , Nikita S. Kalinin , Andrey A. Shtyrov , Mikhail N. Ryazantsev , Dar’ya V. Spiridonova , Anastasia I. Govdi , Irina A. Balova
{"title":"Microwave assisted cycloaddition of benzonitrile oxides to 1-iodobuta-1,3-diynes","authors":"Mariia M. Efremova ,&nbsp;Diana D. Khashimova ,&nbsp;Nikita S. Kalinin ,&nbsp;Andrey A. Shtyrov ,&nbsp;Mikhail N. Ryazantsev ,&nbsp;Dar’ya V. Spiridonova ,&nbsp;Anastasia I. Govdi ,&nbsp;Irina A. Balova","doi":"10.1016/j.mencom.2024.06.022","DOIUrl":"10.1016/j.mencom.2024.06.022","url":null,"abstract":"<div><p>The microwave-assisted cycloaddition of 2,6-disubstituted benzonitrile oxides to 1-iodobuta-1,3-diynes occurs at the iodo-substituted triple bond giving predominantly 5-alkynyl-4-iodo-1,2,3-isoxazoles. The Suzuki–Miyaura and Sonogashira cross-coupling reactions were used for the modification of the thus obtained 4-iodoisoxazoles.</p></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 4","pages":"Pages 536-539"},"PeriodicalIF":1.8,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141963699","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
Enhanced performance of bimetallic catalysts based on copper phyllosilicate in the hydrogenation of dimethyl oxalate to ethylene glycol 提高基于硅酸铜的双金属催化剂在草酸二甲酯加氢制乙二醇过程中的性能
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-07-01 DOI: 10.1016/j.mencom.2024.06.033
Anastasiya A. Shesterkina , Victoria S. Zhuravleva , Kristina E. Kartavova , Anna A. Strekalova , Kseniia V. Vikanova , Alexander L. Kustov
{"title":"Enhanced performance of bimetallic catalysts based on copper phyllosilicate in the hydrogenation of dimethyl oxalate to ethylene glycol","authors":"Anastasiya A. Shesterkina ,&nbsp;Victoria S. Zhuravleva ,&nbsp;Kristina E. Kartavova ,&nbsp;Anna A. Strekalova ,&nbsp;Kseniia V. Vikanova ,&nbsp;Alexander L. Kustov","doi":"10.1016/j.mencom.2024.06.033","DOIUrl":"10.1016/j.mencom.2024.06.033","url":null,"abstract":"<div><p>The effect of the second metal (Pt, Pd, Ni and Fe) on the activity of copper phyllosilicate-based catalysts was investigated in the selective hydrogenation of dimethyl oxalate to ethylene glycol at 160–200 °C. The prepared catalysts were characterized by XRD, DRIFTS-CO and TEM methods. The conversion achieved over 10Fe/10Cu-PhySi catalyst was 68 % at 200 °C; at the same time, the full conversion with selectivity 98% was obtained at the temperature of 180 °C over a bimetallic 1Pt/Cu-PhySi catalyst.</p></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 4","pages":"Pages 569-571"},"PeriodicalIF":1.8,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141963700","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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