Russian Journal of Coordination Chemistry最新文献

{"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 (Et₂mal^2–) and 4,4'-bipyridine (4,4'-bipy) are synthesized: {[Zn(H₂O)(4,4'-bipy)(Et₂mal)]·0.5C₂H₅OH·1.5H₂O}_<i>n</i> (<b>I</b>) and {[Zn₄(H₂O)₂(4,4'-bipy)₃(Et₂mal)₄]·6H₂O}_<i>n</i> (<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}

{"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 μ₃-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}

{"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)NH₂ group followed by dimerization of FBAm to form a potassium salt with one free amide group. The structure of the binuclear reaction product {(DME)₂K⁺[C₆F₅–C(O)N–C₆F₄–C(O)NH₂]^–}₂ (<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}

{"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)₂(Ag(CN)₂)][Ag(CN)₂] (<b>I</b>), [Cu(Еn)₂(Ag(CN)₂)][Ag(CN)₂] (<b>II</b>), and [Cu(4,4'-Вipy)₂(Ag(CN)₂)₂] (<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)₂··}_<i>n</i> (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)₂]₂}_<i>n</i> 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)₂]^– 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}

{"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 [(C₅H₅)Lu(C₁₄H₁₀)(THF)₂] with 1 equiv. of 2,2'-bipyridine in THF gives the trinuclear complex [{(η⁵-C₅H₅)Lu}₃(μ₂-Bipy)₃] (<b>I</b>), containing a 2,2'-bipyridine dianion. The complex was isolated as a powder with the composition <b>I</b>·0.1(C₁₄H₁₀)·0.8(C₇H₈). The recrystallization from a toluene/hexane mixture resulted in the crystals of <b>I</b>·0.084(C₁₄H₁₀)·0.831(C₇H₈)·0.500(C₆H₁₄), which were studied by X-ray diffraction (monoclinic group <i>P</i>2₁/<i>c</i>; CCDC no. 2311508). Complex <b>I</b> has an unusual μ₂-κ²N¹,N^1':η⁴N¹,C²,C^2',N^1'-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}

{"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 ^<i>t</i>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> = κ³‑C₆H₃–2,6-(ZP^<i>t</i>Bu₂)₂, where R = H (<b>I</b>–<b>III</b>), EtCO₂–(<b>IV</b>), and Z = CH₂ (<b>I</b>), CH₂, 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 ^<i>t</i>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 ^<i>t</i>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_Ir-H and ν_N=С modes that produce two strong bands of similar intensity in the ν_N=C 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_CN 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–^<i>t</i>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_NC vibration gives a small high frequency shift for <b>Ia</b> (+16 cm^<b>–</b>1) but low frequency shifts for other complexes becoming less negative in the order <b>IIa</b>–<b>IIa</b>–<b>IVa</b> (PCOP–POCOP– EtCO₂-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}

{"title":"Crystal Structure of Tetraammine Zinc(II) Peroxodisulfate and Barium Peroxodisulfate Tetrahydrate","authors":"A. G. Medvedev,&nbsp;T. A. Tripol’skaya,&nbsp;E. A. Mel’nik,&nbsp;P. A. Egorov,&nbsp;N. S. Mayorov,&nbsp;A. A. Mikhaylov,&nbsp;O. Lev,&nbsp;P. V. Prikhodchenko","doi":"10.1134/S1070328423601553","DOIUrl":"10.1134/S1070328423601553","url":null,"abstract":"<p>Zinc(II) tetraammine peroxodisulfate [Zn(NH₃)₄]S₂O₈ (<b>I</b>) and barium peroxodisulfate tetrahydrate BaS₂O₈·4H₂O (<b>II</b>) were synthesized by interaction of an aqueous solution of ammonium peroxodisulfate with a zinc peroxide and barium hydroxide, respectively. The crystal structures (CIF file CCDC nos. 2311248 (<b>I</b>) and 2311249 (<b>II</b>)) were determined by single crystal X-ray diffraction. The crystal structure of <b>I</b>, for which X-ray powder diffraction structural data were previously reported, has been redetermined and clarified. The crystal packing of <b>I</b> consists of hydrogen-bonded chains parallel to the <i>b</i>-axis connected in a three-dimensional structure with H-bonds between adjacent chains. The compound <b>II</b> is coordination polymer with coordination number of barium cation equal to 9. The crystal packing of <b>II</b> consists of channels in which water molecules are held by H-bonds. Compounds <b>I</b> and <b>II</b> were characterized by DTA and TGA revealing thermal stability up to 170 and 90°C.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 6","pages":"374 - 383"},"PeriodicalIF":1.1,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182717","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":"Dynamic Magnetic Susceptibility Method in Studies of Coordination Compounds","authors":"N. N. Efimov,&nbsp;K. A. Babeshkin,&nbsp;A. V. Rotov","doi":"10.1134/S1070328424600141","DOIUrl":"10.1134/S1070328424600141","url":null,"abstract":"<p>The measurement of the dynamic magnetic susceptibility is a universal method, which is used for the evaluation of magnetic properties of single molecule magnets by scientists all over the world. An information in the Russian scientific literature that can be useful for practical mastering of this method is presently insufficient. To fill this gap, in this work we present a detailed procedure of a magnetochemical experiment for observing slow magnetic relaxation in coordination compounds of 3<i>d</i>- and 4<i>f</i>-element ions and the complete characterization of the dynamics of the magnetic behavior. Special attention is given to usually omitted but important details related to all stages of studying the magnetic relaxation dynamics. The main variants of sample preparation are described, the logics of the construction of a measuring sequence and the procedure of experimental data processing are discussed, and advantages and drawbacks of some programs of the calculation of magnetic relaxation dynamics data are considered. The main concepts and equations used in experimental data analysis are presented, and the primary conclusions that can be made from the obtained results are proposed.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 6","pages":"363 - 373"},"PeriodicalIF":1.1,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1070328424600141.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182716","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}

{"title":"Template Synthesis of the Iron(III) Complex with the Ligands Based on Acylpyrazolonepyridines","authors":"D. D. Strunin,&nbsp;I. A. Nikovskii,&nbsp;A. A. Dan’shina,&nbsp;Yu. V. Nelyubina","doi":"10.1134/S1070328424600645","DOIUrl":"10.1134/S1070328424600645","url":null,"abstract":"<p>The reaction of new bidentate ligand, 1-(5-hydroxy-1-methyl-3-(pyridin-2-yl)-1<i>Н</i>-pyrazol-4-yl)ethan-1-one (L), with iron(III) chloride affords the mononuclear iron(III) complex FeL₂Cl₃, which is characterized by XRD (CIF file CCDC no. 2309481). The intramolecular hydrogen bond between the protonated pyridyl and acetyl groups in ligand L, which exists in the crystal as a zwitterion, provides the formation of rarely met iron complexes in which the β-diketonate fragment coordinates via the η¹ mode. A similar coordination mode along with a possibility of a more favorable η² coordination provides new possibilities for the design of heteropolynuclear compounds of various structures used in the fabrication of molecular devices of data storage and processing.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 6","pages":"384 - 390"},"PeriodicalIF":1.1,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182842","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":"Interaction of Lyophilic Zinc(II) Porphyrins with Bovine Serum Albumin","authors":"O. I. Koifman,&nbsp;N. Sh. Lebedeva,&nbsp;E. S. Yurina,&nbsp;Yu. A. Gubarev,&nbsp;S. A. Syrbu,&nbsp;A. N. Kiselev,&nbsp;M. A. Lebedev","doi":"10.1134/S1070328424600244","DOIUrl":"10.1134/S1070328424600244","url":null,"abstract":"<p>Palladium-catalyzed heterylation of monobromophenyl-substituted zinc(II) porphyrin with small heterocycles (benzothiazole, benzoxazole, and N-methylbenzimidazole) was carried out. As a result, unsymmetrical heterylphenyl-substituted zinc(II) porphyrins soluble in organic solvents were obtained. The interaction of heteryl-substituted zinc(II) porphyrins with alpha-helical proteins was studied by spectral methods using bovine serum albumin in aqueous organic solvents. It was found that the titration of the zinc(II) porphyrins with albumin in a sodium phosphate buffer involves a number of equilibria including complexation and aggregation. In the case of porphyrins containing N-methylbenzimidazole and benzoxazole residues, self-aggregation processes initiated by absorption of organic solvent molecules by the protein predominate. It was found that more hydrophobic nature of zinc(II) porphyrin with benzothiazole residue promotes the complex formation with the protein. The photochemical properties of zinc(II) porphyrin with a benzothiazole residue, capacity for the photooxidation of the alpha-helical protein, and the high affinity of protein to this porphyrin make it a promising candidate for the potential applicability for photodynamic inactivation.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 5","pages":"326 - 333"},"PeriodicalIF":1.1,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182712","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}