Russian Journal of Coordination Chemistry最新文献_第8页

Structural Diversity of Heteroleptic 1,2,4-Triphenylcyclopentadienyl-Bipyridine Complexes of Rare Earth Metals 稀土金属的 1,2,4-三苯基环戊二烯-联吡啶异性配合物的结构多样性

IF 1.1 3区化学

Russian Journal of Coordination Chemistry Pub Date : 2024-08-15 DOI: 10.1134/S1070328423601565

D. A. Bardonov, K. A. Lyssenko, S. S. Degtyareva, I. E. Nifant’ev, D. M. Roitershtein

{"title":"Structural Diversity of Heteroleptic 1,2,4-Triphenylcyclopentadienyl-Bipyridine Complexes of Rare Earth Metals","authors":"D. A. Bardonov, K. A. Lyssenko, S. S. Degtyareva, I. E. Nifant’ev, D. M. Roitershtein","doi":"10.1134/S1070328423601565","DOIUrl":"10.1134/S1070328423601565","url":null,"abstract":"The reaction of triphenylcyclopentadienyl potassium and bipyridine with lanthanum, praseodymium, erbium, lutetium, and scandium chloride tetrahydrofuranates results in the formation of binuclear [CpPh3Ln(Bipy)Cl(μ2-Cl)]2 (Ln = La (I), Pr (II)) and mononuclear [CpPh3Ln(Bipy)Cl2(THF)] (Ln = Er (III), Lu (IV), [CpPh3Sc(Bipy)Cl2] (V) complexes (CpPh3 = 1,2,4-triphenylcyclopentadienyl, Bipy = bipyridine). The decrease in the REE radius in the series La…Sc results in the formation of mononuclear instead of binuclear complexes and in a decrease in the coordination number of the central ion. The coplanar arrangement of two different π-systems gives rise to stacking interactions between the triphenylcyclopentadienyl ligand and bipyridine. The molecular structure of complexes I–V was established by X-ray diffraction analysis (CCDC nos. 2308609 (I), 2308608 (II), 2308610 (III), 2308611 (IV), 2308607 (V)).","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 5","pages":"334 - 342"},"PeriodicalIF":1.1,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182713","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}

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Half-Sandwich Iminophosphonamide Rhodium Complexes as Highly Efficient Catalysts for Dehydrogenation of Dimethylamine-Borane 半三明治氨基膦酰胺铑络合物作为二甲胺-硼烷脱氢反应的高效催化剂

IF 1.1 3区化学

Russian Journal of Coordination Chemistry Pub Date : 2024-08-15 DOI: 10.1134/S1070328424600098

R. I. Nekrasov, T. A. Peganova, A. M. Kal’sin, N. V. Belkova

{"title":"Half-Sandwich Iminophosphonamide Rhodium Complexes as Highly Efficient Catalysts for Dehydrogenation of Dimethylamine-Borane","authors":"R. I. Nekrasov, T. A. Peganova, A. M. Kal’sin, N. V. Belkova","doi":"10.1134/S1070328424600098","DOIUrl":"10.1134/S1070328424600098","url":null,"abstract":"The dehydrogenation of dimethylamine-borane (DMAB) catalyzed by the iminophosphonamide rhodium(III) complexes [Cp*RhCl{Ph2P(N–p-Tol)(NR)}] (Iа, R = p-Tol; Ib, R = Me) as well as their in situ formed fulvene [(η4-C5Me4CH2)Rh(NPN)] (IIa, IIb) and diene [(η4-C5Me5H)Rh(NPN)] (IIIa, IIIb) rhodium(I) derivatives is studied. Catalysts IIIa and IIIb turn out to be the most active and demonstrate a TOF activity of 110 (IIIа) and 540 h–1 (IIIb) at 40°С in toluene. The activity decreases significantly in more polar and coordinating THF. At the same time, the rate of DMAB dehydrogenation by complexes Iа and Ib is lower by 10–30 times, and fulvene complexes Iа and Ib are rapidly deactivated after the active initial period (<20% conversion). The kinetic studies show that the reaction has the first order with respect to the substrate and the catalyst. The model 11В NMR experiments confirm that the reaction proceeds via the intermediate formation of a monomer Me2N=BH2, which rapidly dimerizes to (Me2N–BH2)2. The mechanism of DMAB dehydrogenation with the formation of unstable hydride intermediate [Cp*RhH{Ph2P(N–p-Tol)(NR)}] (IVa, IVb) is proposed on the basis of the preliminarily 31Р NMR results and published data.","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 5","pages":"343 - 348"},"PeriodicalIF":1.1,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182714","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}

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Coordination Compounds of Alkali and Rare Earth Metals Based on Centrosymmetric Chlorine-Substituted Bismercaptooxazole. Synthesis, Structure, and Luminescence 基于中心对称氯代双巯基恶唑的碱金属和稀土金属配位化合物。合成、结构和发光

IF 1.1 3区化学

Russian Journal of Coordination Chemistry Pub Date : 2024-08-15 DOI: 10.1134/S1070328424600177

A. F. Rogozhin, V. A. Ilichev, L. I. Silantyeva, T. A. Kovylina, E. A. Kozlova, G. K. Fukin, M. N. Bochkarev

{"title":"Coordination Compounds of Alkali and Rare Earth Metals Based on Centrosymmetric Chlorine-Substituted Bismercaptooxazole. Synthesis, Structure, and Luminescence","authors":"A. F. Rogozhin, V. A. Ilichev, L. I. Silantyeva, T. A. Kovylina, E. A. Kozlova, G. K. Fukin, M. N. Bochkarev","doi":"10.1134/S1070328424600177","DOIUrl":"10.1134/S1070328424600177","url":null,"abstract":"New coordination polymers were synthesized. A ditopic centrosymmetric organic ligand containing oxazole heterocycles, 4,8-dichlorobenzo[1,2d:4,5d']bis(oxazole)-2,6(3H,7H)-dithione (H2L), was prepared and structurally characterized. It was shown that deprotonated H2L forms non-luminescent binuclear molecular complexes Li2L(THF)6 (I) and Na2L(DME)4 (II) with alkali metals, while complexes of H2L with lanthanides are ionic compounds [Ln(DMSO)8][L]1.5 (Ln = Nd (III), Yb (IV)) exhibiting moderate metal-centered emission in the near-infrared (IR) range, despite the absence of coordination of the ligand L to lanthanide ions. The molecular structures of H2L·2DMSO and I–III were established by X-ray diffraction (CCDC nos. 2320461 (H2L·2DMSO), 2320462 (I), 2320463 (II), 2320464 (III)).","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 6","pages":"405 - 414"},"PeriodicalIF":1.1,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182844","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}

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Monomeric and Polymeric Cyclopentadienyl Dysprosium Complexes Based on the Acenaphthene-1,2-diimine Ligand 基于苊-1,2-二亚胺配体的单体和聚合环戊二烯镝配合物

IF 1.1 3区化学

Russian Journal of Coordination Chemistry Pub Date : 2024-08-15 DOI: 10.1134/S1070328424600207

D. A. Lukina, A. A. Skatova, E. A. Kozlova, I. L. Fedushkin

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Samarium(III) Complex Based on 5-Phenyl-2,2'-bipyridine with the Diethylenetriaminotetraacetic Acid Residue in the C6 Position: Synthesis, Crystal Structure, and Photophysical Properties 基于 5-苯基-2,2'-联吡啶且 C6 位有二乙烯三氨基四乙酸残基的钐(III)配合物：合成、晶体结构和光物理性质

IF 1.1 3区化学

Russian Journal of Coordination Chemistry Pub Date : 2024-08-15 DOI: 10.1134/S1070328424600268

A. P. Krinochkin, S. E. Vatolina, V. S. Gaviko, I. A. Litvinov, M. I. Valieva, Ya. K. Shtaitz, S. S. Rybakova, D. S. Kopchuk, G. V. Zyryanov, V. L. Rusinov

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Versatile Electronic and Structural Properties of Ruthenium-Mediated 1,4-Diaza-1,3-butadiene Ligands: A Review 钌介导的 1,4-二氮杂-1,3-丁二烯配体的多功能电子和结构特性：综述

IF 1.1 3区化学

Russian Journal of Coordination Chemistry Pub Date : 2024-08-15 DOI: 10.1134/S1070328423601449

A. S. Roy

{"title":"Versatile Electronic and Structural Properties of Ruthenium-Mediated 1,4-Diaza-1,3-butadiene Ligands: A Review","authors":"A. S. Roy","doi":"10.1134/S1070328423601449","DOIUrl":"10.1134/S1070328423601449","url":null,"abstract":"Ruthenium α-diimine complexes are widely known for their unique low-lying excited states and potent light absorption capabilities in the visible and NIR regions. A few specially constructed Ru α-diimine complexes have also shown enormous potential in the biomedical field. Several Ru-diimine complexes are well known for their catalytic activity. In this context, the simplest α-diimine system is 1,4-diaza-1,3-butadiene, abbreviated as (DAB/DAD), which received the greatest attention from the research communities. DAB ligands are redox-active. DAB ligands typically function as effective electron donors by employing lone pairs of nitrogen atoms and the π-electrons of the C=N bonds while coordinating the metal ion. The structural, electronic, and photophysical properties of the metal-mediated (DAB) complexes largely depend on the substitution of the ligand backbone as well as metal precursors. A versatile ‘redox noninnocent’ 1,4-diaza-1,3-butadiene motif can stabilise different oxidation states of ruthenium metal depending on the reaction conditions and the presence of co-ligands. The comparative studies of the structural and electrical characteristics of diverse ruthenium-DAB compounds are intriguing, which opens up a new route for researchers to utilise them in a variety of application domains. It is challenging and fascinating to determine the precise electronic structure of redox noninnocent diimine complexes in the presence of a ‘redox active’ metal like ruthenium. In this concise review, we provided a brief overview of the structural and electrical features of various Ru DAB complexes that solely comprise (–N=CH–CH=N–) fragments in the skeleton.","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 6","pages":"415 - 426"},"PeriodicalIF":1.1,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182845","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}

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Influence of the Coordination Environment on the EPR Spectra of Mononuclear Gd Thiocyanates 配位环境对单核硫氰酸钆 EPR 光谱的影响

IF 1.1 3区化学

Russian Journal of Coordination Chemistry Pub Date : 2024-07-27 DOI: 10.1134/S1070328423601413

S. P. Petrosyants, A. B. Ilyukhin, K. A. Babeshkin, E. A. Ugolkova, V. V. Minin, P. S. Koroteev, N. N. Efimov

{"title":"Influence of the Coordination Environment on the EPR Spectra of Mononuclear Gd Thiocyanates","authors":"S. P. Petrosyants, A. B. Ilyukhin, K. A. Babeshkin, E. A. Ugolkova, V. V. Minin, P. S. Koroteev, N. N. Efimov","doi":"10.1134/S1070328423601413","DOIUrl":"10.1134/S1070328423601413","url":null,"abstract":"Using the synthesized salt Gd(NCS)3·6H2O, previously unknown mononuclear molecular complexes [Gd(H2O)(bpy)2(NCS)3]·0.5(bpy)·H2O, [Gd(H2O)(phen)2(NCS)3]·phen·0.5H2O as well as ionic ones [Hbpy][Gd(NCS)4(bpy)2]·H2O, [Hphen][Gd(NCS)4(phen)2] (bpy is 2,2'-bipyridine, phen is 1,10-phenanthroline) were prepared. Structural characteristics of the obtained compounds were determined using X-ray diffraction data. The magnetic susceptibility and EPR data of the new Gd complexes are considered taking into account the features of their composition and structure. Due to the peculiarities of the electronic structure, Gd complexes can serve as test systems for analyzing the field strength of ligands and the geometry of the local environment of the 4f-metal ion. It is shown that EPR spectroscopy is highly efficient method for determining the spin Hamiltonian parameters and, consequently, for characterizing the local environment of the gadolinium ion in complexes. However, the EPR method does not allow one to determine the sign of the splitting parameter in the zero field D, which requires additional studies.","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 4","pages":"246 - 256"},"PeriodicalIF":1.1,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778729","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}

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Coordination Compounds of Cobalt(II) Nitrate and Perchlorate with Acetamide and Carbamide: Precursors for the Synthesis of Catalytically Active Tricobalt Tetraoxide 硝酸钴和高氯酸钴与乙酰胺和碳酰胺的配位化合物：催化活性四氧化三钴的合成前体

IF 1.1 3区化学

Russian Journal of Coordination Chemistry Pub Date : 2024-07-27 DOI: 10.1134/S1070328424600049

R. A. Rodriguez Pineda, I. A. Karavaev, E. V. Savinkina, E. V. Volchkova, Zh. Yu. Pastukhova, L. G. Bruk, G. A. Buzanov, A. S. Kubasov, V. M. Retivov

{"title":"Coordination Compounds of Cobalt(II) Nitrate and Perchlorate with Acetamide and Carbamide: Precursors for the Synthesis of Catalytically Active Tricobalt Tetraoxide","authors":"R. A. Rodriguez Pineda, I. A. Karavaev, E. V. Savinkina, E. V. Volchkova, Zh. Yu. Pastukhova, L. G. Bruk, G. A. Buzanov, A. S. Kubasov, V. M. Retivov","doi":"10.1134/S1070328424600049","DOIUrl":"10.1134/S1070328424600049","url":null,"abstract":"The reactions of cobalt(II) nitrate or perchlorate with acetamide (AA) or carbamide (Ur) in an aqueous medium results in formation of coordination compounds [Co(Ur)4](NO3)2 (I), [Co(Ur)6](NO3)2 (II), [Co(AA)4(H2O)2](NO3)2 (III), [Co(AA)4(H2O)2](NO3)2∙2AA (IV), [Co(Ur)6](ClO4)2, (V), [Co(AA)4(H2O)2](ClO4)2 (VI), and [Co(AA)6](ClO4)2 (VII). The compositions of the isolated complexes are determined by physicochemical methods, and the crystal and molecular structures of compounds II, V, VI, and VII are solved. Specific features of the thermal behavior of all synthesized compounds in a wide temperature range are studied in detail. These compounds are shown to be used as precursors in the preparation of nanosized Co3O4 using self-propagating high-temperature synthesis. The catalytic activity of thus synthesized Co3O4 in the model epoxidation of allyl alcohol is studied.","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 4","pages":"269 - 280"},"PeriodicalIF":1.1,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778832","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}

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Synthesis and Study of Mono(arylhydrazino)acenaphthenones and Nickel Complex Based on Pyridine-Substituted Derivative 单(芳基肼)苊酮和基于吡啶取代衍生物的镍配合物的合成与研究

IF 1.1 3区化学

Russian Journal of Coordination Chemistry Pub Date : 2024-07-27 DOI: 10.1134/S1070328423601644

I. V. Bakaev, V. I. Komlyagina, N. F. Romashev, A. L. Gushchin

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Photoluminescent Lanthanide(III) Complexes Based on 2-[((4-Chlorophenyl)amino)methylene]-5,5-dimethylcyclohexane-1,3-dione 基于 2-[((4-氯苯基)氨基)亚甲基]-5,5-二甲基环己烷-1,3-二酮的光致发光镧系元素（III）配合物

IF 1.1 3区化学

Russian Journal of Coordination Chemistry Pub Date : 2024-07-27 DOI: 10.1134/S1070328423601450

K. S. Smirnova, E. A. Sanzhenakova, I. V. El’tsov, I. P. Pozdnyakov, A. A. Russkikh, V. V. Dotsenko, E. V. Lider

{"title":"Photoluminescent Lanthanide(III) Complexes Based on 2-[((4-Chlorophenyl)amino)methylene]-5,5-dimethylcyclohexane-1,3-dione","authors":"K. S. Smirnova, E. A. Sanzhenakova, I. V. El’tsov, I. P. Pozdnyakov, A. A. Russkikh, V. V. Dotsenko, E. V. Lider","doi":"10.1134/S1070328423601450","DOIUrl":"10.1134/S1070328423601450","url":null,"abstract":"Five coordination compounds of the general formula [LnL2(NO3)3]n (Ln3+ = Eu (I), Sm (II), Tb (III), Dy (IV), and Gd (V)) based on 2-[((4-chlorophenyl)amino)methylene]-5,5-dimethylcyclohexane-1,3-dione (L) are synthesized. The crystal structures of the ligand and complex III are determined by X-ray diffraction (XRD) analysis of single crystals (CIF files CCDC no. 2298715 (L) and 2298716 (III)). Complex III is polymeric due to the bidentate-bridging coordination of the ligand by the oxygen atoms of the cyclohexanedione fragment, and the coordination number of the central atom is ten. According to the powder XRD data, all synthesized polycrystalline compounds are isostructural to the single crystals of complex III. The photoluminescence properties of the ligand and coordination compounds in the polycrystalline state are studied. The energy transfer from the ligand to lanthanide(III) ion is shown to proceed via the “antenna” mechanism in the case of the europium(III), samarium(III), and terbium(III) compounds. Among the series of the complexes, the highest quantum yield is observed for compound I (21.9%), and the sensitization efficiency of the europium(III) complex is 43.5%.","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 4","pages":"257 - 268"},"PeriodicalIF":1.1,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778730","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}

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