E. G. Il’in, A. S. Parshakov, V. I. Privalov, A. V. Churakov, G. V. Bodrin, E. I. Goryunov
{"title":"Stereochemistry of the cis-Tetrafluoro Complexes of Titanium with 1-Ac-2-[Ph2P(O)]-Cyclohexane (1RS,2SR) Stereoisomers in СН2Сl2","authors":"E. G. Il’in, A. S. Parshakov, V. I. Privalov, A. V. Churakov, G. V. Bodrin, E. I. Goryunov","doi":"10.1134/S1070328423700719","DOIUrl":"10.1134/S1070328423700719","url":null,"abstract":"<p>The monodentate phosphoryl-containing ligand 1-Ac-2-[Ph<sub>2</sub>P(O)]-cyclohexane (L) bearing two asymmetric carbon atoms is synthesized. The study of its crystal structure shows that L is a racemic mixture of (1R,2S) and (1S,2R) stereoisomers. The complex formation of L with TiF<sub>4</sub> in СН<sub>2</sub>Сl<sub>2</sub> is studied by <sup>19</sup>F{<sup>1</sup>Н} and <sup>31</sup>Р{<sup>1</sup>Н} NMR spectroscopy. The compositions of the complexes formed in the solution are determined. Racemic and <i>meso-</i>diastereomers of the octahedral complex <i>cis</i>-TiF<sub>4</sub>L<sub>2</sub> are formed in the solution as found by an analysis of the <sup>19</sup>F and <sup>31</sup>Р NMR spectra taking into account the concept of heterotropy of organic compounds. The influence of the optical configuration of stereoisomers of the monodentate ligand coexisting in the coordination sphere of the [MF<sub>4</sub>L<sub>2</sub>] octahedral tetrafluoro complexes of transition <i>d</i><sup>0</sup> metals on the chemical shifts of the fluorine atoms arranged in the <i>trans</i> positions relative to each other is shown. In the <i>meso</i>-diastereomer of <i>cis</i>-TiF<sub>4</sub>L<sub>2</sub>, this results in a nonequivalence of the fluorine atoms on the F–Ti–F' ordinate of the octahedron, and the spin-spin coupling constant <i>J</i><sub>FF'</sub> = 286.1 Hz is observed in the <sup>19</sup>F{<sup>1</sup>H} NMR spectrum.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140938579","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}
G. A. Gavrilov, K. N. Davletbaeva, M. A. Kinzhalov
{"title":"Gold(I) Chloride Complexes with 4-Halo-Substituted Phenyl Isocyanide Ligands","authors":"G. A. Gavrilov, K. N. Davletbaeva, M. A. Kinzhalov","doi":"10.1134/S1070328423600596","DOIUrl":"10.1134/S1070328423600596","url":null,"abstract":"<p>A series of gold(I) monoisocyanide [AuCl(CNC<sub>6</sub>H<sub>4</sub>-4-X)] (X = Cl (<b>IIa</b>), Br (<b>IIb</b>), I (<b>IIc</b>) and bis<i>-</i>isocyanide [Au(CNC<sub>6</sub>H<sub>4</sub>-4-X)<sub>2</sub>](PF<sub>6</sub>) (X = Cl (<b>IIIa</b>), Br (<b>IIIb</b>), I (<b>IIIc</b>) complexes were prepared by the reaction of [AuCl(Tht)] (Tht = tetrahydrothiophene) with the specified isocyanide. The molecular structure of <b>IIa</b>–<b>IIc</b> was established by X-ray diffraction (CCDC no. 2253450 (<b>IIa</b>), 2253447 (<b>IIb</b>), 2253448 (<b>IIc</b>)). The crystals of <b>IIb</b> and <b>IIc</b> are isostructural; they were found to have several types of intermolecular interactions, particularly, C–X⋯Cl–Au halogen bonds, π-hole (C<sub>CNR</sub>)···<span>(~{{d}_{{{{z}^{2}}}}})</span>(Au) interactions, and Au⋯Au aurophilic contacts, which form together a two-layer 2D supramolecular polymer. The crystals of <b>IIb</b>, <b>IIc</b> and <b>IIIa</b>, <b>IIIb</b> exhibit phosphorescence at room temperature; compounds <b>IIa</b> and <b>IIIc</b> do not possess luminescent properties; and mechanical grinding of <b>IIa</b>‒<b>IIc</b> and <b>IIIa</b>‒<b>IIIc</b> powders does not change the photophysical properties.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140938567","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}
D. A. Burmistrova, I. V. Smolyaninov, N. T. Berberova
{"title":"Modern Trends in the Synthesis of Disulfides: From Metal-Containing Catalysts to Nonmaterial Reagents (Review)","authors":"D. A. Burmistrova, I. V. Smolyaninov, N. T. Berberova","doi":"10.1134/S1070328423600985","DOIUrl":"10.1134/S1070328423600985","url":null,"abstract":"<p>The modern trends in the development of synthetic approaches to the preparation of organic symmetrical and unsymmetrical disulfides are reviewed. The main trend in the synthesis of disulfides is the transition from the reactions involving metal-containing catalysts to the use of physical methods for the activation of sulfur substrates. The main attention is given to the works published since 2013 to the present time and devoted to the synthesis of disulfides in the presence of transition and nontransition metal complexes and organic and inorganic oxidants, as well as under the electric current action and photo- or microwave irradiation.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140076532","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}
V. N. Storozhenko, A. S. Kamyshnikova, K. P. Pashchenko, A. O. Okhlobystin, I. L. Eremenko, N. T. Berberova
{"title":"Transition Metal (Zn(II), Co(II), Cu(II), Ni(II)) Complexes for the Removal of Acidic Sulfur Impurities from Hydrocarbon Fuel","authors":"V. N. Storozhenko, A. S. Kamyshnikova, K. P. Pashchenko, A. O. Okhlobystin, I. L. Eremenko, N. T. Berberova","doi":"10.1134/S1070328423600638","DOIUrl":"10.1134/S1070328423600638","url":null,"abstract":"<p>The review addresses the main approaches to desulfurization of hydrocarbon products by adsorption methods. Examples of the use of various supports (metal-organic frameworks, various porous carbons, silica, and alumina) for the removal of acidic sulfur components from gas and liquid hydrocarbons are presented. Modification of the supports with transition metals, oxides, salts, and complex compounds to remove hydrogen sulfide and thiols from hydrocarbon raw materials is substantiated. The environmental friendliness and lower energy consumption for the use of silica gel modified with Zn(II), Co(II), Ni(II), and Cu(II) carboxylates to refine hydrocarbon fuel are demonstrated. A comparison of the theoretical calculations (DFT) with experimental results attests to good agreement between the data. The choice of the parameters for silica gel surface modification with metal carboxylates is discussed, including pore size of the support, time and power of the ultrasonic treatment for the support impregnation with solutions of complexes, optimal concentration of transition metal complexes, effect of the geometry of complexes on their adsorption and on the absorption of acidic sulfur components, and so on. According to quantum chemical calculations and experimental results, metal sulfides are formed as the final products of reactions of both hydrogen sulfide and thiols with metal carboxylates. Zinc pivalate is proposed as the most promising modifier for silica, which not only efficiently removes sulfur impurities, but also gives rise to nontoxic zinc sulfide supported on silica gel.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140076506","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}
E. V. Shinkar’, I. V. Smolyaninov, N. T. Berberova
{"title":"Metal Complexes with Redox-Active Ligands in the Indirect Electrosynthesis of Organic Sulfur Compounds","authors":"E. V. Shinkar’, I. V. Smolyaninov, N. T. Berberova","doi":"10.1134/S107032842360122X","DOIUrl":"10.1134/S107032842360122X","url":null,"abstract":"<p>A possibility of using metal complexes with redox-active ligands in organic electrosynthesis is demonstrated on the basis of literature data analysis. Unlike homogeneous catalysis, many examples are known for the application of complexes of this type in electrocatalytic processes characterized by a higher selectivity and milder conditions. Interest in metal complexes with redox-active ligands is due to their use in the heterogeneous electrocatalysis as well. The main attention is given to advantages of the indirect electrosynthesis of organic compounds, in particular, sulfur derivatives, in the presence of mediators or electrocatalysts based on metal complexes with redox-active ligands. Active forms of metal complexes are generated at the electrodes and can initiate the further transformations of inert substrates. A significant decrease in power expenses compared to the direct redox activation of reagents is the main advantage of indirect electrosynthesis. The cyclic processes favoring a permanent regeneration of metal complexes lead to an increase in the yield of target compounds.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140071249","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}
{"title":"Organic Sulfur Derivatives and Their Metal Complexes as Promising Pharmacologically Active Compounds","authors":"V. P. Osipova, N. T. Berberova","doi":"10.1134/S1070328423600894","DOIUrl":"10.1134/S1070328423600894","url":null,"abstract":"<p>The mechanism of biological activity of various sulfur-containing compounds and sulfur fragments of both natural and synthetic origins is presented. Unique characteristics of organosulfur compounds that are present in natural plant products are considered to reveal the most efficient sulfur components of the natural origin. An insufficient efficiency of the pharmacological action of plant raw materials and undesirable effects indisputably confirm the topical character of research on the preparation of modified analogs of natural biologically active sulfur-containing compounds. The modern data on the development of new polytopic organosulfur compounds combining different redox-active functional groups in the structure, which should favor their efficiency and a decrease in side manifestations, are reviewed. Sulfur-containing metal complexes with antimicrobial, antiviral, and anticancer properties are among the most promising pharmacologically active compounds. In spite of the success achieved in this field of chemistry, the preparation of new target-oriented biodrugs based on bioessential metals (Cu, Zn, Se) and biomimetic organosulfur fragments remains to be an urgent problem. The developments in this direction should favor to understand mechanisms of the therapeutic action of new drugs and to prepare drugs of the new generation followed by their implementation in clinical practice.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140071402","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}
A. S. Burlov, V. G. Vlasenko, D. A. Garnovskii, A. I. Uraev, Yu. V. Koshchienko, E. I. Mal’tsev, D. A. Lypenko, A. V. Dmitriev
{"title":"Luminescent Metal Complexes of Polydentate Azomethine Ligands","authors":"A. S. Burlov, V. G. Vlasenko, D. A. Garnovskii, A. I. Uraev, Yu. V. Koshchienko, E. I. Mal’tsev, D. A. Lypenko, A. V. Dmitriev","doi":"10.1134/S1070328423600845","DOIUrl":"10.1134/S1070328423600845","url":null,"abstract":"<p>The article represents a translated, revised, and updated Section 6.3 of the monograph by A.S. Burlov, V.G. Vlasenko, D.A. Garnovskiy, A.I. Uraev, E.I. Maltsev, D.A. Lypenko, and A.V. Vannikov, <i>Electroluminescent Organic Light-Emitting Diodes Based on Metal Coordination Compounds</i>, Rostov-on-Don: Yuzhn. Fed. Univ., 2015; ISBN 978-5-9275-1469-4 (see Additional Information). This section is dedicated to reviewing the photoluminescence and electroluminescence properties of metal complexes based on bi- and polydentate ligands of the azomethine type (Schiff bases). Many metal complexes of Schiff bases find wide use as luminescent materials. One of the applications of these compounds is the use as emissive layers or dopants for manufacturing OLED. The photo- and electroluminescence properties of a series of the metal complexes with the ligands based on the derivatives of hydroxybenzaldehyde, 2-(<i>N</i>-tosylamino)benzaldehyde, 1‑phenyl-3-methyl-4-formylpyrazol-5-one, and some others are reviewed. The systematic categorization of these compounds extends beyond their photophysical properties to consider the electroluminescence characteristics observed in OLED devices employing them as the basis. By modifying known azomethine-type ligand systems, one can obtain metal complex compounds with exceptional thermal stability, solubility, and quantum efficiency. These characteristics enable their use as luminescent materials in highly efficient OLED devices.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140008784","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}
A. S. Burlov, V. G. Vlasenko, D. A. Garnovskii, A. I. Uraev, Yu. V. Koshchienko, E. I. Mal’tsev, D. A. Lypenko, A. V. Dmitriev
{"title":"Luminescence Properties of the Iridium(III) Complexes","authors":"A. S. Burlov, V. G. Vlasenko, D. A. Garnovskii, A. I. Uraev, Yu. V. Koshchienko, E. I. Mal’tsev, D. A. Lypenko, A. V. Dmitriev","doi":"10.1134/S1070328423600857","DOIUrl":"10.1134/S1070328423600857","url":null,"abstract":"<p>This review summarizes the results of the synthesis, photoluminescence, and electroluminescence of the main classes of cyclometallated iridium(III) complex compounds. The primary focus of the review is on heteroleptic iridium(III) complexes, which contain two equivalent C^N ligands and an additional auxiliary ligand. Numerous examples demonstrate that the selection and modification of the ligand systems in iridium(III) complexes, using various donor or acceptor groups, alter significantly their spectral characteristics, often achieving record levels of brightness and emission efficiency for OLED devices manufactured based on them.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140008937","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}
A. S. Burlov, V. G. Vlasenko, D. A. Garnovskii, A. I. Uraev, Yu. V. Koshchienko, E. I. Mal’tsev, D. A. Lypenko, A. V. Dmitriev
{"title":"Photoluminescence and Electroluminescence of Metal Complexes of Quinoline Derivatives","authors":"A. S. Burlov, V. G. Vlasenko, D. A. Garnovskii, A. I. Uraev, Yu. V. Koshchienko, E. I. Mal’tsev, D. A. Lypenko, A. V. Dmitriev","doi":"10.1134/S1070328423600821","DOIUrl":"10.1134/S1070328423600821","url":null,"abstract":"<p>The review is devoted to analysis of photo- and electroluminescent properties of metal complexes (Al, Be, Mg, Ga, In, Zn, and B) based on substituted quinoline derivatives. Literature data shows that changing the substituents in quinoline ligands and the metal complexing agent can affect the color and intensity of photoluminescence in the corresponding metal complexes. OLED devices fabricated based on these complexes have exhibited high brightness and efficient electroluminescence across a broad spectral range from red to blue. Furthermore, these compounds possess excellent electron-transport properties, enabling their utilization as conductive layers in OLEDs.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140009210","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}
E. I. Mal’tsev, D. A. Lypenko, A. V. Dmitriev, A. V. Vannikov, A. S. Burlov, V. G. Vlasenko
{"title":"Electroluminescence and Organic Light-Emitting Diodes","authors":"E. I. Mal’tsev, D. A. Lypenko, A. V. Dmitriev, A. V. Vannikov, A. S. Burlov, V. G. Vlasenko","doi":"10.1134/S107032842360078X","DOIUrl":"10.1134/S107032842360078X","url":null,"abstract":"<p>Light-emitting diodes are budget-friendly solid-state light sources that find use in the very diverse areas: from lighting to data display devices. The history of the discovery of the electroluminescence phenomenon and development of the technology of inorganic (LED) and organic light-emitting diodes (OLED) is presented. Today, there has been a widespread transition to light-emitting diode sources based on inorganic semiconductors, ensuring significant energy savings. However, OLED technologies continue to undergo intensive development. Advantages of OLED over other light sources and areas of their practical use are considered. We discussed the fundamental principles of manufacturing organic light sources with a white emission spectrum, based on low-molecular-weight and polymeric compounds, and considered various approaches for developing polymeric materials with a white emission spectrum. Prospects of the development of the market of OLED light sources are evaluated.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140008960","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}