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Compositions of aluminum phthalocyanine with amphiphilic N-vinylpyrrolidone copolymers and their nanosized structures in aqueous media. Experimental and theoretical research
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-25 DOI: 10.1007/s11172-025-4516-7
S. V. Kurmaz, I. V. Ul’yanov, N. S. Emel’yanova
{"title":"Compositions of aluminum phthalocyanine with amphiphilic N-vinylpyrrolidone copolymers and their nanosized structures in aqueous media. Experimental and theoretical research","authors":"S. V. Kurmaz,&nbsp;I. V. Ul’yanov,&nbsp;N. S. Emel’yanova","doi":"10.1007/s11172-025-4516-7","DOIUrl":"10.1007/s11172-025-4516-7","url":null,"abstract":"<div><p>Water-soluble compositions of aluminum phthalocyanine (PcAlCl) were developed and characterized by the solubilization of PcAlCl with the amphiphilic copolymers <i>N</i>-vinylpyrrolidone—triethylene glycol dimethacrylate and <i>N</i>-vinylpyrrolidone—cyclohexyl methacrylate—triethylene glycol dimethacrylate. Their nanosized structures were shown to absorb and fluoresce in aqueous media. The relative fluorescence quantum yield of the dye encapsulated in the terpolymer is an order of magnitude higher than that of PhAlCl in the double copolymer and is equal to ∼3.7%. Possibilities of the formation of solvates/complexes PcAlC1/DMSO and their complexes with monomer units, as well as structures of free PcAlC1 with the monomer units and polymer chains consisting of these units, were considered using quantum chemical calculations.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 1","pages":"210 - 222"},"PeriodicalIF":1.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698669","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
Self-organization, physicochemical properties, and effect on plant organisms of dilute aqueous solutions of indole-3-acetic acid
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-25 DOI: 10.1007/s11172-025-4518-5
I. S. Ryzhkina, L. A. Kostina, L. I. Murtazina, S. Yu. Sergeeva, K. A. Muravtseva, I. S. Dokuchaeva, T. V. Kuznetsova, A. M. Petrov
{"title":"Self-organization, physicochemical properties, and effect on plant organisms of dilute aqueous solutions of indole-3-acetic acid","authors":"I. S. Ryzhkina,&nbsp;L. A. Kostina,&nbsp;L. I. Murtazina,&nbsp;S. Yu. Sergeeva,&nbsp;K. A. Muravtseva,&nbsp;I. S. Dokuchaeva,&nbsp;T. V. Kuznetsova,&nbsp;A. M. Petrov","doi":"10.1007/s11172-025-4518-5","DOIUrl":"10.1007/s11172-025-4518-5","url":null,"abstract":"<div><p>Self-organization, surface tension, and UV absorption and fluorescence spectra of aqueous dilute solutions of phytohormone indole-3-acetic acid (IAA) were studied. A relationship between the rearrangement of the dispersed phase, nonmonotonic change in the surface tension, and fluorescence intensity (λ<sub>ex</sub> = 230 nm, λ<sub>em</sub> = 340 nm) occurred with the dilution of the IAA systems and the multidirectional effect on the number of green algae <i>Chlorella vulgaris</i> and the growth of seed roots of wheat <i>Triticum vulgare</i> was established. The most significant effect on the algae is observed in the vicinity of the calculated concentrations of the IAA solutions in which a pronounced change in the size of the dispersed phase, fluorescence intensity, and surface tension of the solutions was found.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 1","pages":"235 - 244"},"PeriodicalIF":1.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698673","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
Features of the reactions of the furan compounds with hydrogen peroxide depending on substrate structure and catalyst type 呋喃化合物与过氧化氢反应的特点取决于底物结构和催化剂类型
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-25 DOI: 10.1007/s11172-025-4493-x
V. V. Poskonin, L. A. Badovskaya, L. V. Povarova
{"title":"Features of the reactions of the furan compounds with hydrogen peroxide depending on substrate structure and catalyst type","authors":"V. V. Poskonin,&nbsp;L. A. Badovskaya,&nbsp;L. V. Povarova","doi":"10.1007/s11172-025-4493-x","DOIUrl":"10.1007/s11172-025-4493-x","url":null,"abstract":"<div><p>The review is focused on the features of catalytic and noncatalytic homogeneous reactions of furans, formylfurans, and acetylfurans with hydrogen peroxide. The differences in the reaction mechanisms, product compositions, and reaction rates depending on the substituent in the furan ring and the type of the homogeneous catalyst are discussed. Our results were compared with the data on oxidation of furans with hydrogen peroxide in the presence of other homogeneous and heterogeneous catalysts.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 1","pages":"1 - 16"},"PeriodicalIF":1.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698524","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
Imine-based synthesis of functionalized phosphorus-containing carboxamides 基于亚胺合成功能化含磷羧酰胺
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-25 DOI: 10.1007/s11172-025-4513-x
Yu. N. Bubnov, A. A. Prishchenko, M. V. Livantsov, O. P. Novikova, L. I. Livantsova, S. V. Baranin
{"title":"Imine-based synthesis of functionalized phosphorus-containing carboxamides","authors":"Yu. N. Bubnov,&nbsp;A. A. Prishchenko,&nbsp;M. V. Livantsov,&nbsp;O. P. Novikova,&nbsp;L. I. Livantsova,&nbsp;S. V. Baranin","doi":"10.1007/s11172-025-4513-x","DOIUrl":"10.1007/s11172-025-4513-x","url":null,"abstract":"<div><p>Convenient syntheses of functionalized phosphorus-containing carboxamides based on the reaction of adducts of imines and carboxylic acid chlorides with trimethylsilyl esters of trivalent phosphorus acids have been developed. Adducts ClCH(Ar)—N(R)C(O)R′ are convenient synthons for the preparation of the target phosphorus-containing carboxamides bearing P(O)—C—N—C(O) moieties. The resulting compounds contain polar amide and phosphoryl moieties, have potential biological activity, and are also of interest as effective extractants and polydentate chelating ligands.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 1","pages":"171 - 189"},"PeriodicalIF":1.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698605","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
Quantum chemical calculations and IR spectra of (O—Si)-chelate N-(fluorosilyl)methyl-N-isopropylureas
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-25 DOI: 10.1007/s11172-025-4494-9
N. N. Chipanina, L. P. Oznobikhina, M. A. Alekseev, N. F. Lazareva
{"title":"Quantum chemical calculations and IR spectra of (O—Si)-chelate N-(fluorosilyl)methyl-N-isopropylureas","authors":"N. N. Chipanina,&nbsp;L. P. Oznobikhina,&nbsp;M. A. Alekseev,&nbsp;N. F. Lazareva","doi":"10.1007/s11172-025-4494-9","DOIUrl":"10.1007/s11172-025-4494-9","url":null,"abstract":"<div><p>Quantum chemical calculations of (O—Si)-chelate <i>N</i>-(fluorosilyl)methyl-<i>N</i>-isopropyl-<i>N</i>′, <i>N</i>′-dimethyl- and <i>N</i>-(fluorosilyl)methyl-<i>N</i>-isopropyl-<i>N</i>′, <i>N</i>′-diphenylureas by DFT in the gas phase and in a polar DMSO medium showed the dependence of the geometric parameters of their molecules on the stereoelectronic effects of substituents at the silicon and nitrogen atoms and the polarity of the medium. The nature of the Si—O and Si—F bonds of the axial fragment of the coordination site was determined using the analysis of the topological characteristics of the bond critical points and the determination of their energy values within the framework of the quantum theory of atoms in molecules (QTAIM); NBO analysis (NBO is natural bond orbital) of orbital interactions of the LEP of the N and O atoms and the vacant orbitals of the C=O and C—N bonds showed their dependence on the polarity of the medium. A comparison of the experimental and calculated IR spectra of the studied compounds in the solid state and polar medium indicates an inversion of the <i>v</i><sub>as</sub> frequencies characterizing the vibrations of the O=C—N(1) carbonyl group and the N(1)—C—N(2) fragment in <i>N</i>-(trifluorosilyl)methyl-<i>N</i>-isopropyl-<i>N</i>′, <i>N</i>′-dimethylurea.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 1","pages":"17 - 25"},"PeriodicalIF":1.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698526","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 pyridyl-containing amidine and specific features of its coordination to K+ and La3+ ions 新的含吡啶基的脒及其与 K+ 和 La3+ 离子配位的具体特征
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-25 DOI: 10.1007/s11172-025-4502-0
N. Yu. Rad’kova, A. V. Cherkasov, D. M. Lyubov, A. A. Trifonov
{"title":"New pyridyl-containing amidine and specific features of its coordination to K+ and La3+ ions","authors":"N. Yu. Rad’kova,&nbsp;A. V. Cherkasov,&nbsp;D. M. Lyubov,&nbsp;A. A. Trifonov","doi":"10.1007/s11172-025-4502-0","DOIUrl":"10.1007/s11172-025-4502-0","url":null,"abstract":"<div><p>A new tridentate amidine 2-(NC<sub>5</sub>H<sub>4</sub>)NHC(Bu<sup>t</sup>)=N-2,6-Me<sub>2</sub>C<sub>6</sub>H<sub>3</sub> (<b>1</b>) was synthesized by the reaction of 2-aminopyridine with imidoyl chloride 2,6-Me<sub>2</sub>C<sub>6</sub>H<sub>3</sub>[N=C(Cl)Bu<sup>t</sup>] in the presence of triethylamine in toluene. The deprotonation of <b>1</b> with KH in THF affords potassium amidinate {[2-(NC<sub>5</sub>H<sub>4</sub>)NC(Bu<sup>t</sup>)N-2,6-Me<sub>2</sub>C<sub>6</sub>H<sub>3</sub>]K}<sub>n</sub> (<b>2</b>), which, according to the X-ray diffraction data, is a coordination polymer. The exchange reaction of compound <b>2</b> with anhydrous LaCl<sub>3</sub> gives a new homoleptic lanthanum tris(amidinate) complex La[2-(NC<sub>5</sub>H<sub>4</sub>)NC(Bu<sup>t</sup>)=N-2,6-Me<sub>2</sub>C<sub>6</sub>H<sub>3</sub>]<sub>3</sub> (<b>3</b>) despite the molar ratio (1 : 1). The X-ray diffraction study demonstrated that each amidinate ligand in complex <b>3</b> is coordinated to the lanthanum ion in an unusual κ<sup>2</sup>-N<sub>Py</sub>, N mode through the nitrogen atom of the pyridine ring and one nitrogen atom of the amidinate moiety.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 1","pages":"83 - 93"},"PeriodicalIF":1.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698491","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
Fast and ultrafast processes in propane plasma pumped by laser pulses 激光脉冲泵浦丙烷等离子体中的快速和超快过程
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-25 DOI: 10.1007/s11172-025-4496-7
A. V. Povolotskiy, Yu. S. Tver’yanovich, T. I. Sheremet, S. S. Lunkov, E. V. Borisov
{"title":"Fast and ultrafast processes in propane plasma pumped by laser pulses","authors":"A. V. Povolotskiy,&nbsp;Yu. S. Tver’yanovich,&nbsp;T. I. Sheremet,&nbsp;S. S. Lunkov,&nbsp;E. V. Borisov","doi":"10.1007/s11172-025-4496-7","DOIUrl":"10.1007/s11172-025-4496-7","url":null,"abstract":"<div><p>Fast and ultrafast processes of propane plasma rise and relaxation under excitation by nano- and femtosecond laser pulses at atmospheric pressure were studied. The characteristic relaxation times of the excited states of the propane dissociation products in laser-induced plasma were determined. Mechanisms of plasma formation and dissociation of propane molecules in plasma upon excitation by high-intensity femtosecond laser pulses at power densities exceeding 1 · 10<sup>14</sup> W cm<sup>−2</sup> were proposed.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 1","pages":"35 - 42"},"PeriodicalIF":1.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698493","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 solid thermoplastic isoprene polymers using organoaluminum compounds 使用有机铝化合物合成固体热塑性异戊二烯聚合物
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-25 DOI: 10.1007/s11172-025-4514-9
V. A. Rozentsvet, N. A. Sablina, D. M. Ulyanova, R. V. Brunilin, P. M. Tolstoy
{"title":"Synthesis of solid thermoplastic isoprene polymers using organoaluminum compounds","authors":"V. A. Rozentsvet,&nbsp;N. A. Sablina,&nbsp;D. M. Ulyanova,&nbsp;R. V. Brunilin,&nbsp;P. M. Tolstoy","doi":"10.1007/s11172-025-4514-9","DOIUrl":"10.1007/s11172-025-4514-9","url":null,"abstract":"<div><p>Cationic polymerization of isoprene using the initiating systems consisting of organoaluminum compounds (OAC = AlEt<sub>3</sub>, AlEt<sub>2</sub>Cl, or AlEtCl<sub>2</sub>) and allyl chloride (ALC) is a new efficient method for the synthesis of completely soluble solid thermoplastic isoprene polymers characterized by reduced degree of unsaturation (44–50 mol.%), high glass transition temperatures (57–60 °C), and high softening points (128–180 °C). The molecular characteristics, degree of unsaturation, and softening points of the resulting isoprene polymers can be controlled by varying the ALC: AOC ratio in the initiating systems, as well as the temperature and duration of the polymerization process. The structure of the head group of the synthesized polymer was established for the first time by 1D and 2D NMR spectroscopy. It represents the allyl fragment of the polymerization initiator (ALC) connected to the 1,4-<i>trans</i>-unit of polyisoprene.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 1","pages":"190 - 200"},"PeriodicalIF":1.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698604","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
Novel route of neocuproine functionalization
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-25 DOI: 10.1007/s11172-025-4505-x
E. S. Spesivaya, Dzh. N. Konshina, F. A. Kolokolov, V. V. Konshin
{"title":"Novel route of neocuproine functionalization","authors":"E. S. Spesivaya,&nbsp;Dzh. N. Konshina,&nbsp;F. A. Kolokolov,&nbsp;V. V. Konshin","doi":"10.1007/s11172-025-4505-x","DOIUrl":"10.1007/s11172-025-4505-x","url":null,"abstract":"<div><p>A convenient method for the C(sp<sup>3</sup>)H-functionalization of 2,9-dimethyl-1,10-phenanthroline (neocuproine) by the reaction with ethyl trifluoropyruvate was proposed. The reaction carried out by reflux in 1,2-dichloroethane gave 2,2′-(1,10-phenanthroline-2,9-diyl)bis(methylene)]bis(2-hydroxy-3,3,3-trifluoropropanoic acid) derivatives.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 1","pages":"110 - 114"},"PeriodicalIF":1.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698509","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
Graphene oxide in the catalytic synthesis of chromeno[2,3-d]pyrimidin-4-ones and pyrimido[4,5-b]quinolin-4-ones
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-25 DOI: 10.1007/s11172-025-4503-z
A. V. Nikulin, S. V. Brudnik, N. O. Vasilkova, A. P. Krivenko, E. V. Yakovleva
{"title":"Graphene oxide in the catalytic synthesis of chromeno[2,3-d]pyrimidin-4-ones and pyrimido[4,5-b]quinolin-4-ones","authors":"A. V. Nikulin,&nbsp;S. V. Brudnik,&nbsp;N. O. Vasilkova,&nbsp;A. P. Krivenko,&nbsp;E. V. Yakovleva","doi":"10.1007/s11172-025-4503-z","DOIUrl":"10.1007/s11172-025-4503-z","url":null,"abstract":"<div><p>Graphene oxide was successfully used as a heterogeneous acid catalyst in the synthesis of chromeno[2,3-<i>d</i>]pyrimidinones and pyrimido[4,5-<i>b</i>]quinolinones by the annulation of a pyrimidine fragment to 2-aminotetrahydrochromene(quinoline)-3-carbonitriles under the action of acetic anhydride. Advantages of using graphene oxide include the exclusion of aggressive sulfuric acid as a catalyst from the reaction medium, acceptable yields, catalyst reusability and a significant reducing of the reaction time. The structure of spent graphene oxide was assessed using X-ray diffraction, Raman and IR spectroscopy, and scanning electron microscopy. The structure of newly synthesized compounds was determined by a combination of spectral methods.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 1","pages":"94 - 101"},"PeriodicalIF":1.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698554","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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