Russian Journal of Coordination Chemistry最新文献

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Coordination Compounds of 3d Metals with 2,4-Dimethylpyrazolo[1,5-а]benzimidazole: Magnetic and Biological Properties 3d 金属与 2,4-二甲基吡唑并[1,5-а]苯并咪唑的配位化合物:磁性和生物特性
IF 1.1 3区 化学
Russian Journal of Coordination Chemistry Pub Date : 2024-08-21 DOI: 10.1134/S1070328424600621
O. G. Shakirova, T. A. Kuz’menko, N. V. Kurat’eva, L. S. Klyushova, A. N. Lavrov, L. G. Lavrenova
{"title":"Coordination Compounds of 3d Metals with 2,4-Dimethylpyrazolo[1,5-а]benzimidazole: Magnetic and Biological Properties","authors":"O. G. Shakirova,&nbsp;T. A. Kuz’menko,&nbsp;N. V. Kurat’eva,&nbsp;L. S. Klyushova,&nbsp;A. N. Lavrov,&nbsp;L. G. Lavrenova","doi":"10.1134/S1070328424600621","DOIUrl":"10.1134/S1070328424600621","url":null,"abstract":"<p>New coordination compounds of copper(I), copper(II), cobalt(II), and nickel(II) with 2,4-dimethylpyrazolo[1,5-а]benzimidazole (L) were synthesized and studied. The complexes [CuLCl] (<b>I</b>), [CuLBr] (<b>II</b>), [CuL<sub>2</sub>Cl<sub>2</sub>] (<b>III</b>), [CuL<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>]·H<sub>2</sub>O (<b>IV</b>), [CoL<sub>2</sub>Cl<sub>2</sub>]·0.5H<sub>2</sub>O (<b>V</b>), [CoL<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>]·0.5H<sub>2</sub>O (<b>VI</b>), and [NiL<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>]·0.5H<sub>2</sub>O (<b>VII</b>) were studied by IR spectroscopy and powder and single crystal X-ray diffraction (CCDC nos. 2321779 ([CuL<sub>2</sub>Cl<sub>2</sub>]), 2321780 ([CoL<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>])). The results indicate that the coordination polyhedron in 2,4-dimethylpyrazolo[1,5-а]benzimidazole complexes is formed by the nitrogen atoms of the monodentate ligand and the coordinated anion. The cytotoxic and cytostatic properties of L and complexes <b>I</b>–<b>III</b> were studied in relation to the HepG2 hepatocellular carcinoma cells.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 7","pages":"500 - 511"},"PeriodicalIF":1.1,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182707","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}
引用次数: 0
Crystal Structure of Lanthanide Salts with 2,4-Dichlorophenoxyacetic Acid 镧系元素盐与 2,4-二氯苯氧乙酸的晶体结构
IF 1.1 3区 化学
Russian Journal of Coordination Chemistry Pub Date : 2024-08-21 DOI: 10.1134/S107032842460030X
M. A. Kiskin, O. V. Konnik, V. F. Shul’gin, A. N. Gusev
{"title":"Crystal Structure of Lanthanide Salts with 2,4-Dichlorophenoxyacetic Acid","authors":"M. A. Kiskin,&nbsp;O. V. Konnik,&nbsp;V. F. Shul’gin,&nbsp;A. N. Gusev","doi":"10.1134/S107032842460030X","DOIUrl":"10.1134/S107032842460030X","url":null,"abstract":"<p>Compounds of three types, [LnL<sub>3</sub>(C<sub>2</sub>H<sub>5</sub>OH)] (Ln = Nd (<b>I</b>), Sm (<b>II</b>), Eu (<b>III</b>)), [LnL<sub>3</sub>(H<sub>2</sub>O)] (Ln = Gd (<b>IV</b>), Tb (<b>V</b>)), and [DyL<sub>2</sub>(NO<sub>3</sub>)(C<sub>2</sub>H<sub>5</sub>OH)<sub>2</sub>] (<b>VI</b>), were obtained by reactions of lanthanide nitrate with NaL (L<sup>–</sup> = 2,4-dichlorophenoxyacetate anion) in ethanol. The composition and structure of complexes <b>I</b>–<b>VI</b> were investigated by elemental and thermogravimetric analysis, IR spectroscopy, and X-ray diffraction (nos. 2311578 (<b>I</b>), 2311579 (<b>II</b>), 2311580 (<b>III</b>), 2311581 (<b>IV</b>), 2311582 (<b>VI</b>)). All compounds have a one-dimensional polymer structure in which metal atoms are connected by bridging carboxylate groups. The π–π interactions and intermolecular contacts between the chains give rise to a three-dimensional supramolecular structure.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 7","pages":"476 - 484"},"PeriodicalIF":1.1,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182704","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}
引用次数: 0
Pseudopolymeric Thallium(I) Di-iso-pentyl Dithiophosphate, [Tl{S2P(O-iso-С5H11)2}]: Synthesis, Structural Organization (Role of Secondary Tl⋅⋅⋅S and Tl⋅⋅⋅O Interactions in Supramolecular Self-Assembly), and Thermal Behavior 假聚铊(I)二异戊基二硫代磷酸盐[Tl{S2P(O-iso-С5H11)2}]:合成、结构组织(次生 Tl⋅⋅S 和 Tl⋅⋅O 相互作用在超分子自组装中的作用)和热行为
IF 1.1 3区 化学
Russian Journal of Coordination Chemistry Pub Date : 2024-08-21 DOI: 10.1134/S1070328424600529
O. A. Bredyuk, I. A. Lutsenko, Yu. V. Nelyubina, S. V. Zinchenko, A. V. Ivanov
{"title":"Pseudopolymeric Thallium(I) Di-iso-pentyl Dithiophosphate, [Tl{S2P(O-iso-С5H11)2}]: Synthesis, Structural Organization (Role of Secondary Tl⋅⋅⋅S and Tl⋅⋅⋅O Interactions in Supramolecular Self-Assembly), and Thermal Behavior","authors":"O. A. Bredyuk,&nbsp;I. A. Lutsenko,&nbsp;Yu. V. Nelyubina,&nbsp;S. V. Zinchenko,&nbsp;A. V. Ivanov","doi":"10.1134/S1070328424600529","DOIUrl":"10.1134/S1070328424600529","url":null,"abstract":"<p>Crystalline pseudopolymeric thallium(I) di-<i>iso-</i>pentyl dithiophosphate (Dtph), [Tl{S<sub>2</sub>P(O-<i>iso</i>-С<sub>5</sub>H<sub>11</sub>)<sub>2</sub>}] (<b>I</b>), is synthesized and characterized in detail by single-crystal XRD (CIF file CCDC no. 2296421), simultaneous thermal analysis (STA), multinuclear (<sup>1</sup>H, <sup>13</sup>C, <sup>31</sup>P) NMR, and IR spectroscopy. Nonequivalent molecules of two types containing Tl(1) and Tl(2) atoms (hereinafter molecules <i>А</i> and <i>В</i> , respectively) are involved (1 : 1) in the formation of the structure of compound <b>I</b>. In both molecules, the <i>S</i>,<i>S</i>  ′-anisobidentate coordination of the Dtph ligands (Tl–S bond lengths 3.006–3.092 Å) results in the formation of small-size four-membered metallocycles [TlS<sub>2</sub>P] (a ‘butterfly’ conformation) with significantly averaged P–S bond lengths (1.966–1.985 Å). Molecules <i>A</i> and <i>B</i> are structurally ordered upon the construction of supramolecular chains of two types (⋅⋅⋅<i>A</i>⋅⋅⋅<i>A</i>⋅⋅⋅<i>A</i>⋅⋅⋅)<sub><i>n</i></sub> and (⋅⋅⋅<i>B</i>⋅⋅⋅<i>B</i>⋅⋅⋅<i>B</i>⋅⋅⋅)<sub><i>n</i></sub> with oppositely directed structural units combined by paired secondary Tl⋅⋅⋅S and Tl⋅⋅⋅O interactions alternating over the chain length. In turn, paired secondary (but weaker) Tl⋅⋅⋅S interactions occur between molecules <i>A</i> and <i>B</i> belonging to two neighboring pseudopolymeric chains. The multiplicity of these interactions provides the formation of double supramolecular ribbons. The thermal behavior of compound <b>I</b> is studied by the STA technique under an argon atmosphere. Thallium(I) tetrathiophosphate Tl<sub>3</sub>PS<sub>4</sub> is identified as the only end product of the thermolysis of compound <b>I</b>. Electron probe microanalysis (EPMA) and scanning electron microscopy (SEM) are used to study the residual substance.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 7","pages":"512 - 522"},"PeriodicalIF":1.1,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182709","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}
引用次数: 0
Synthesis of (η6-Arene)tricarbonylchromium Complexes of 1,3-Benzodioxanes 1,3 苯并二恶烷的 (η6-Arene) 三羰基铬络合物的合成
IF 1.1 3区 化学
Russian Journal of Coordination Chemistry Pub Date : 2024-08-21 DOI: 10.1134/S1070328424600542
N. Yu. Grishina, E. V. Sazonova, P. S. Ushakova, N. V. Somov, E. A. Medvedeva, A. Yu. Shishkin, A. N. Artemov
{"title":"Synthesis of (η6-Arene)tricarbonylchromium Complexes of 1,3-Benzodioxanes","authors":"N. Yu. Grishina,&nbsp;E. V. Sazonova,&nbsp;P. S. Ushakova,&nbsp;N. V. Somov,&nbsp;E. A. Medvedeva,&nbsp;A. Yu. Shishkin,&nbsp;A. N. Artemov","doi":"10.1134/S1070328424600542","DOIUrl":"10.1134/S1070328424600542","url":null,"abstract":"<p>The reactions of triammino(tricarbonyl)chromium (<b>I</b>) with 1,3-benzodioxane (L<sup>1</sup>), 2-methyl-1,3-benzodioxane (L<sup>2</sup>), and 2-phenyl-1,3-benzodioxane (L<sup>3</sup>) afford new complexes: (η<sup>6</sup>-C<sub>8</sub>H<sub>8</sub>O<sub>2</sub>)Cr(CO)<sub>3</sub> (<b>II</b>), <i>exo</i>- and <i>endo</i>-[2-Me-(η<sup>6</sup>-C<sub>8</sub>H<sub>7</sub>O<sub>2</sub>)]Cr(CO)<sub>3</sub> (<b>III</b>, <b>IV</b>), <i>exo</i>- and <i>endo</i>-[2-Ph-(η<sup>6</sup>-C<sub>8</sub>H<sub>7</sub>O<sub>2</sub>)]Cr(CO)<sub>3</sub> (<b>V</b>, <b>VI</b>), [2-(η<sup>6</sup>-Ph)-C<sub>8</sub>H<sub>7</sub>O<sub>2</sub>]Cr(CO)<sub>3</sub> (<b>VII</b>), and <i>endo</i>-[2-(η<sup>6</sup>-Ph)]Cr(CO)<sub>3</sub>-[η<sup>6</sup>-C<sub>8</sub>H<sub>7</sub>O<sub>2</sub>]Cr(CO)<sub>3</sub> (<b>VIII</b>). The structures, compositions, and purity of the synthesized products are proved by UV, IR, and <sup>1</sup>H NMR spectroscopy, HPLC, and mass spectrometry. The molecular structures of complexes <b>IV</b>–<b>VI</b> are determined by XRD (CIF files CCDC nos. 2263301 (<b>IV</b>), 2295552 (<b>V</b>), and 2237106 (<b>VI</b>)). A possibility of coordination of the tricarbonylchromium group at different sides of the phenylene ring of ligands L<sup>2</sup> and L<sup>3</sup> and on the phenyl substituent of ligand L<sup>3</sup> is shown.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 7","pages":"458 - 468"},"PeriodicalIF":1.1,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182846","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}
引用次数: 0
2D Coordination Polymers of Zn(II) with Diethylmalonic Acid Dianions and 4,4'-bipyridine: Synthesis and Structure Zn(II) 与二乙基丙二酸滇和 4,4'-联吡啶的二维配位聚合物:合成与结构
IF 1.1 3区 化学
Russian Journal of Coordination Chemistry Pub Date : 2024-08-21 DOI: 10.1134/S1070328424600128
A. S. Chistyakov, E. N. Zorina-Tikhonova, A. V. Vologzhanina, M. A. Kiskin, I. L. Eremenko
{"title":"2D Coordination Polymers of Zn(II) with Diethylmalonic Acid Dianions and 4,4'-bipyridine: Synthesis and Structure","authors":"A. S. Chistyakov,&nbsp;E. N. Zorina-Tikhonova,&nbsp;A. V. Vologzhanina,&nbsp;M. A. Kiskin,&nbsp;I. L. Eremenko","doi":"10.1134/S1070328424600128","DOIUrl":"10.1134/S1070328424600128","url":null,"abstract":"<p>Two new coordination compounds of zinc(II) with diethylmalonic acid anions (Et<sub>2</sub>mal<sup>2–</sup>) and 4,4'-bipyridine (4,4'-bipy) are synthesized: {[Zn(H<sub>2</sub>O)(4,4'-bipy)(Et<sub>2</sub>mal)]·0.5C<sub>2</sub>H<sub>5</sub>OH·1.5H<sub>2</sub>O}<sub><i>n</i></sub> (<b>I</b>) and {[Zn<sub>4</sub>(H<sub>2</sub>O)<sub>2</sub>(4,4'-bipy)<sub>3</sub>(Et<sub>2</sub>mal)<sub>4</sub>]·6H<sub>2</sub>O}<sub><i>n</i></sub> (<b>II</b>). According to the XRD data (CIF files CCDC nos. 2323336 (<b>I</b>) and 2323337 (<b>II</b>)), both compounds are 2D polymers with the <b>sql</b> and <b>bey</b> topology, respectively. The choice of the initial zinc salt and solvent predetermines the compositions and structures of the polymers under similar synthesis conditions.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 7","pages":"469 - 475"},"PeriodicalIF":1.1,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182703","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}
引用次数: 0
The First Example of Dicubane Nickel(II) Complex in the Series of Unsymmetrically Substituted Diketones 不对称取代的二酮类化合物系列中的首个二古巴烷镍(II)络合物实例
IF 1.1 3区 化学
Russian Journal of Coordination Chemistry Pub Date : 2024-08-21 DOI: 10.1134/S1070328424600499
L. A. Khamidullina, I. S. Puzyrev, P. V. Dorovatovskii, V. N. Khrustalev, A. V. Pestov
{"title":"The First Example of Dicubane Nickel(II) Complex in the Series of Unsymmetrically Substituted Diketones","authors":"L. A. Khamidullina,&nbsp;I. S. Puzyrev,&nbsp;P. V. Dorovatovskii,&nbsp;V. N. Khrustalev,&nbsp;A. V. Pestov","doi":"10.1134/S1070328424600499","DOIUrl":"10.1134/S1070328424600499","url":null,"abstract":"<p>The first homometal dicubane nickel(II) complex based on unsymmetrically substituted 1,3-diketone (1,1,1-trifluoro-4-(2-methoxyphenyl)butan-2,4-dione) was synthesized and studied by X-ray diffraction using synchrotron radiation (CCDC no. 861889). In the crystal of the complex, nickel atoms are joined into tetrahedra sharing a common vertex with Ni…Ni distances of 3.026–3.127 Å; the geometry is completed to a distorted dicubane by μ<sub>3</sub>-bridging oxygen atoms of the hydroxyl groups. The coordination environment of each metal center is a distorted octahedron, the ligand is deprotonated and performs a bidentate function, forming six-membered chelate rings.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 7","pages":"485 - 491"},"PeriodicalIF":1.1,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182705","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}
引用次数: 0
Reaction of 2,3,4,5,6-Pentafluorobenzamide with Potassium Hydride: Unexpected Activation of the C–F Bond and Dimerization of Organofluorine Ligand 2,3,4,5,6-五氟苯甲酰胺与氢化钾的反应:C-F 键的意外活化和有机氟配体的二聚化
IF 1.1 3区 化学
Russian Journal of Coordination Chemistry Pub Date : 2024-08-15 DOI: 10.1134/S107032842460013X
D. S. Yambulatov, T. V. Astaf’eva, J. K. Voronina, S. A. Nikolaevskii, M. A. Kiskin, I. L. Eremenko
{"title":"Reaction of 2,3,4,5,6-Pentafluorobenzamide with Potassium Hydride: Unexpected Activation of the C–F Bond and Dimerization of Organofluorine Ligand","authors":"D. S. Yambulatov,&nbsp;T. V. Astaf’eva,&nbsp;J. K. Voronina,&nbsp;S. A. Nikolaevskii,&nbsp;M. A. Kiskin,&nbsp;I. L. Eremenko","doi":"10.1134/S107032842460013X","DOIUrl":"10.1134/S107032842460013X","url":null,"abstract":"<p>The reaction of potassium hydride with 2,3,4,5,6-pentafluorobenzamide (FBAm) in dimethoxyethane results in activation of the C–F bond in the <i>para</i>-position to the C(O)NH<sub>2</sub> group followed by dimerization of FBAm to form a potassium salt with one free amide group. The structure of the binuclear reaction product {(DME)<sub>2</sub>K<sup>+</sup>[C<sub>6</sub>F<sub>5</sub>–C(O)N–C<sub>6</sub>F<sub>4</sub>–C(O)NH<sub>2</sub>]<sup>–</sup>}<sub>2</sub> (<b>I</b>) was determined by X-ray diffraction (CCDC 2311402), the purity of the product was confirmed by NMR spectroscopy.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 5","pages":"355 - 361"},"PeriodicalIF":1.1,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S107032842460013X.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nickel(II) and Copper(II) Dicyanoargentate Complexes with Ethylenediamine and 4,4'-Bipyridyl Ligands 乙二胺和 4,4'-联吡啶配体的二氰基精氨酸镍(II)和铜(II)络合物
IF 1.1 3区 化学
Russian Journal of Coordination Chemistry Pub Date : 2024-08-15 DOI: 10.1134/S1070328423601589
D. R. Pashnin, D. P. Shevchenko, V. V. Sharutin, O. K. Sharutina
{"title":"Nickel(II) and Copper(II) Dicyanoargentate Complexes with Ethylenediamine and 4,4'-Bipyridyl Ligands","authors":"D. R. Pashnin,&nbsp;D. P. Shevchenko,&nbsp;V. V. Sharutin,&nbsp;O. K. Sharutina","doi":"10.1134/S1070328423601589","DOIUrl":"10.1134/S1070328423601589","url":null,"abstract":"<p>The reactions of an aqueous solution of potassium dicyanoargentate with a mixture of nickel(II) or copper(II) chloride and ethylenediamine or 4,4'-bipyridyl in ethanol afford coordination polymers [Ni(Еn)<sub>2</sub>(Ag(CN)<sub>2</sub>)][Ag(CN)<sub>2</sub>] (<b>I</b>), [Cu(Еn)<sub>2</sub>(Ag(CN)<sub>2</sub>)][Ag(CN)<sub>2</sub>] (<b>II</b>), and [Cu(4,4'-Вipy)<sub>2</sub>(Ag(CN)<sub>2</sub>)<sub>2</sub>] (<b>III</b>) characterized by XRD (CIF files CCDC nos. 2225984 (<b>I</b>), 2214320 (<b>II</b>), and 2229270 (<b>III</b>)) and IR spectroscopy. According to the XRD data, the crystals of complexes <b>I</b> and <b>II</b> are formed by 1D chains {··NC–Ag–CN–M(Еn)<sub>2</sub>··}<sub><i>n</i></sub> (M = Ni (<b>I</b>), Cu (<b>II</b>)) linked with each other by the dicyanoargentate anions via argentophilic contacts (Ag···Ag 3.288(8) Å (<b>I</b>), 3.1616(14) Å (<b>II</b>)). The crystal of compound <b>III</b> consists of independent interpenetrating 3D networks built of polymer layers {Cu[Ag(CN)<sub>2</sub>]<sub>2</sub>}<sub><i>n</i></sub> bound to each other by the 4,4'-bipyridyl molecules. The bipyridyl linkers connect the Cu centers with the Ag centers of the [Ag(CN)<sub>2</sub>]<sup>–</sup> anions thus providing the tridentate coordination of the silver atoms. No Ag···Ag interactions are observed in the crystal of complex <b>III</b>.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 5","pages":"349 - 354"},"PeriodicalIF":1.1,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182701","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}
引用次数: 0
Trinuclear Lutetium(III) Cyclopentadienyl Complex with the 2,2'-Bipyridine Dianion 含 2,2'-联吡啶滇离子的三核镥(III)环戊二烯络合物
IF 1.1 3区 化学
Russian Journal of Coordination Chemistry Pub Date : 2024-08-15 DOI: 10.1134/S1070328424600165
D. A. Bardonov, D. M. Roitershtein, D. I. Nasyrova, M. E. Minyaev
{"title":"Trinuclear Lutetium(III) Cyclopentadienyl Complex with the 2,2'-Bipyridine Dianion","authors":"D. A. Bardonov,&nbsp;D. M. Roitershtein,&nbsp;D. I. Nasyrova,&nbsp;M. E. Minyaev","doi":"10.1134/S1070328424600165","DOIUrl":"10.1134/S1070328424600165","url":null,"abstract":"<p>The reaction of lutetium cyclopentadienyl anthracenide complex [(C<sub>5</sub>H<sub>5</sub>)Lu(C<sub>14</sub>H<sub>10</sub>)(THF)<sub>2</sub>] with 1 equiv. of 2,2'-bipyridine in THF gives the trinuclear complex [{(η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)Lu}<sub>3</sub>(μ<sub>2</sub>-Bipy)<sub>3</sub>] (<b>I</b>), containing a 2,2'-bipyridine dianion. The complex was isolated as a powder with the composition <b>I</b>·0.1(C<sub>14</sub>H<sub>10</sub>)·0.8(C<sub>7</sub>H<sub>8</sub>). The recrystallization from a toluene/hexane mixture resulted in the crystals of <b>I</b>·0.084(C<sub>14</sub>H<sub>10</sub>)·0.831(C<sub>7</sub>H<sub>8</sub>)·0.500(C<sub>6</sub>H<sub>14</sub>), which were studied by X-ray diffraction (monoclinic group <i>P</i>2<sub>1</sub>/<i>c</i>; CCDC no. 2311508). Complex <b>I</b> has an unusual μ<sub>2</sub>-κ<sup>2</sup>N<sup>1</sup>,N<sup>1'</sup>:η<sup>4</sup>N<sup>1</sup>,C<sup>2</sup>,C<sup>2'</sup>,N<sup>1'</sup>-bridging coordination of the dianion.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 6","pages":"391 - 397"},"PeriodicalIF":1.1,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182695","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}
引用次数: 0
Isonitrile Coordination to Pincer Iridium Hydrido Chlorides 异腈与钳形铱氢氯化物的配位
IF 1.1 3区 化学
Russian Journal of Coordination Chemistry Pub Date : 2024-08-15 DOI: 10.1134/S1070328423601541
E. S. Gulyaeva, E. I. Gutsul, Y. V. Nelyubina, E. S. Osipova, O. A. Filippov, E. S. Shubina, N. V. Belkova
{"title":"Isonitrile Coordination to Pincer Iridium Hydrido Chlorides","authors":"E. S. Gulyaeva,&nbsp;E. I. Gutsul,&nbsp;Y. V. Nelyubina,&nbsp;E. S. Osipova,&nbsp;O. A. Filippov,&nbsp;E. S. Shubina,&nbsp;N. V. Belkova","doi":"10.1134/S1070328423601541","DOIUrl":"10.1134/S1070328423601541","url":null,"abstract":"<p>Isonitriles are useful reagents that participate in many cycloaddition or multicomponent reactions of interest in organic synthesis, which are often catalyzed by transition metal complexes. Being good electron donors, RN=C bonds become activated and prone to the nuclephilic attack upon coordination to electrophilic (Lewis acidic) metal centers. Herein we explore the complexation of <sup><i>t</i></sup>BuNC to a series of iridium hydrido chlorides supported by benzene-based pincer ligands, (<span>({text{R}}{{{text{-}}}^{{^{t}{text{Bu}}}}}{text{PZCZP}})</span>)IrH(Cl) (<span>({text{R}}{{{text{-}}}^{{^{t}{text{Bu}}}}}{text{PZCZP}})</span> = κ<sup>3</sup>‑C<sub>6</sub>H<sub>3</sub>–2,6-(ZP<sup><i>t</i></sup>Bu<sub>2</sub>)<sub>2</sub>, where R = H (<b>I</b>–<b>III</b>), EtCO<sub>2</sub>–(<b>IV</b>), and Z = CH<sub>2</sub> (<b>I</b>), CH<sub>2</sub>, O (<b>II</b>), O (<b>III</b>, <b>IV</b>)), that occurs instantaneously and quantitatively in solution yielding one of possible isomers <b>Ia</b>–<b>IVa</b>. Single crystal X-ray diffraction studies for <b>Ia</b>–<b>IIIa</b> confirmed the apical coordination of isonitrile ligand <i>trans</i> to hydride ligand suggested by NMR studies. Perusal of the structural data suggests stronger binding of <sup><i>t</i></sup>BuNC to PCP-supported iridium center in complex <b>Ia</b> in comparison to PCOP/POCOP species <b>IIa</b>–<b>IIIa</b>. Structural data also reveal a distortion in the P–Ir–P arrangement caused by <sup><i>t</i></sup>BuNC docking in apical position that is the most noticeable for asymmetric PCOP version <b>IIa</b>. The computational analysis of vibrational frequencies unveils an essential coupling ν<sub>Ir-H</sub> and ν<sub>N=С</sub> modes that produce two strong bands of similar intensity in the ν<sub>N=C</sub> region for <b>Ia</b>. Weaker isonitrile binding in <b>IIa</b>–<b>IVa</b> with shorter N=С and longer N–<span>({{{text{C}}}^{{^{t}{text{Bu}}}}})</span> /Ir–C<sub>CN</sub> bonds and a plethora of intramolecular interactions result in a different degree of vibrational mixing for Ir‒H and N=C stretches as well as lead to an intense bands due to a Fermi resonance of low frequency modes involving vibrations of N–C–<sup><i>t</i></sup>Bu fragment. Thus, the raw experimental IR data should be taken with care as an indicator of RN=С activation, paying attention to the vibrational coupling. An estimation of band position for the “true” (uncoupled) ν<sub>NC</sub> vibration gives a small high frequency shift for <b>Ia</b> (+16 cm<sup><b>–</b>1</sup>) but low frequency shifts for other complexes becoming less negative in the order <b>IIa</b>–<b>IIa</b>–<b>IVa</b> (PCOP–POCOP– EtCO<sub>2</sub>-POCOP). Overall the results obtained show the influence of the pincer ligand on the complex picture of isonitrile complexes structure and spectra, and suggest that strong binding does not always mean a strong activation.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 5","pages":"316 - 325"},"PeriodicalIF":1.1,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182711","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}
引用次数: 0
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