O. V. Khromova, A. F. Smol’yakov, R. A. Zil’berg, Yu. B. Teres, G. I. Ishmakaeva, V. I. Maleev, V. A. Larionov
{"title":"Chiral Cobalt(III) Complexes Based on (1R,2R)-Cyclohexanediamine and 4-Bromo-5-methylsalicylaldehyde: Synthesis, Modification, and Application in Catalysis and Enantioselective Sensors","authors":"O. V. Khromova, A. F. Smol’yakov, R. A. Zil’berg, Yu. B. Teres, G. I. Ishmakaeva, V. I. Maleev, V. A. Larionov","doi":"10.1134/S1070328424601468","DOIUrl":"10.1134/S1070328424601468","url":null,"abstract":"<p>New chiral octahedral positively charged diastereomeric cobalt(III) complexes Λ(<i>R</i>,<i>R</i>)-<b>1</b> and Δ(<i>R</i>,<i>R</i>)-<b>1</b> with two asymmetric NNO-donor ligands (Schiff base of (1<i>R</i>,2<i>R</i>)-cyclohexanediamine and 4‑bromo-5-methylsalicylaldehyde) were synthesized. Single-crystal X-ray diffraction (XRD) analysis showed that the Δ(<i>R</i>,<i>R</i>)-<b>1</b> complex is arranged in the crystal as a homochiral spiral with a “tube-in-tube” cavity, formed via hydrogen bonding between amino groups of the complex, water molecules, and the counterion. The bromo-containing complex Λ(<i>R</i>,<i>R</i>)-<b>1</b> was further modified by a catalytic Suzuki–Miyaura cross-coupling reaction to give complexes Λ(<i>R</i>,<i>R</i>)-<b>2</b> and Λ(<i>R,R</i>)-<b>3</b> with introduced Ph and 4-CF<sub>3</sub>C<sub>6</sub>H<sub>4</sub> groups. The structure of complex Λ(<i>R,R</i>)-<b>2</b> was confirmed by XRD. The catalytic activity of the synthesized complexes was studied in asymmetric phase-transfer alkylation and trimethylsilylcyanation reactions. Cobalt(III) complexes were also tested as chiral selectors for enantioselective voltammetric sensors, and the effect of complex structure on sensor characteristics toward the enantiomers of naproxen and thyroxine was evaluated.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 3","pages":"200 - 210"},"PeriodicalIF":1.1,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142475","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}
I. A. Nikovskii, A. N. Sinel’nikov, A. S. Bogomyakov, A. V. Borodulina, Yu. V. Nelyubina
{"title":"cis- and trans-Isomerism in Manganese(II) Complexes with Acylpyrazolonepyridine","authors":"I. A. Nikovskii, A. N. Sinel’nikov, A. S. Bogomyakov, A. V. Borodulina, Yu. V. Nelyubina","doi":"10.1134/S1070328424601547","DOIUrl":"10.1134/S1070328424601547","url":null,"abstract":"<p>The reaction between 1-(5-hydroxy-1-methyl-3-(pyridin-2-yl)-1<i>H</i>-pyrazol-4-yl)ethan-1-one (L) and manganese(II) acetate afforded two new manganese(II) complexes with <i>trans</i> and <i>cis</i> configurations of the acylpyrazolone ligands—<i>trans</i>-L<sub>2</sub>Mn(MeOH)<sub>2</sub> (<i>trans</i>-<b>I</b>) and <i>cis</i>-L<sub>2</sub>Mn(MeOH)<sub>2</sub> (<i>cis</i>-<b>I</b>),—characterized by elemental analysis and X-ray diffraction (CCDC nos. 2408806 and 2408805, respectively). The less stable (<i>cis</i>-<b>I</b>) complex was obtained by introducing 2,2′-bipyridine into the reaction, presumably leading to the formation of an intermediate heteroleptic complex with L and 2,2′-bipyridine. The resulting isomeric complexes exhibit different molecular geometries and supramolecular organization in the crystal but convert into the more stable (<i>trans</i>-<b>I</b>) isomer in DMF solution. According to magnetometry and EPR spectroscopy, they display slightly different magnetic properties.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 3","pages":"184 - 191"},"PeriodicalIF":1.1,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142577","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}
I. V. Ershova, I. N. Meshcheryakova, A. V. Maleeva, N. O. Druzhkov, A. V. Cherkasov, A. V. Piskunov
{"title":"Indium(III) Catecholates Based on Alkyl-Substituted o-Benzoquinones","authors":"I. V. Ershova, I. N. Meshcheryakova, A. V. Maleeva, N. O. Druzhkov, A. V. Cherkasov, A. V. Piskunov","doi":"10.1134/S1070328425600172","DOIUrl":"10.1134/S1070328425600172","url":null,"abstract":"<p>A series of dimeric indium(III) catecholates [(R-Cat)InI]<sub>2</sub> (R = 3,6-<i>c</i>Hex (<b>I</b>), 3,5-<i>t</i>Oc (<b>II</b>), 4-<i>t</i>Oc (<b>III</b>), and 3,5-C(Me)<sub>2</sub>Ph (<b>IV</b>)) is synthesized by the oxidative addition of indium(I) iodide to the following alkyl-substituted <i>o-</i>benzoquinones: 3,6-di-<i>cyclo</i>-hexyl-<i>o</i>-benzoquinone (3,6-<i>c</i>Hex-Q), 3,5-di-<i>tert</i>-octyl-<i>o</i>-benzoquinone (3,5-<i>t</i>Oc-Q), 4-<i>tert</i>-octyl-<i>о</i>-benzoquinone (4-<i>t</i>Oc-Q), and 3,5-bis(2-phenylpropan-2-yl)-<i>o</i>-benzoquinone (3,5-C(Me)<sub>2</sub>Ph-Q). Compounds <b>I</b>–<b>IV</b> are stable in the crystalline state and in solution, and their structures are confirmed by NMR and IR spectroscopy and elemental analysis. The crystallization of complex <b>II</b> from THF gives crystals of two types, <i>cis</i>-<b>II</b>·4THF and <i>trans</i>-<b>II</b>·4THF, corresponding to the <i>cis</i> and <i>trans</i> orientations of the alkyl substituents relatively to the catecholate fragment plane. The reactions of compounds <b>I</b>–<b>IV</b> with 2,2'-bipyridyl afford heteroleptic derivatives (R-Cat)InI(Bipy) (R = 3,6-<i>c</i>Hex (<b>V</b>), 3,5-<i>t</i>Oc (<b>VI</b>), 4-<i>t</i>Oc (<b>VII</b>), and 3,5-C(Me)<sub>2</sub>Ph (<b>VIII</b>)). Compounds <b>V</b> and <b>VIII</b> are isolated in the individual state and characterized by a set of physicochemical methods. Derivatives <b>VI</b> and <b>VII</b> are unstable and undergo further transformations to form a poorly separable mixture of products. The molecular structures of complexes <i>cis</i>-<b>II</b>·4THF and <i>trans</i>-<b>II</b>·4THF are determined by X-ray diffraction (XRD) (CIF files CCDC nos. 2404879 and 2404880, respectively).</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 3","pages":"160 - 168"},"PeriodicalIF":1.1,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142572","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. M. Roitershtein, L. N. Puntus, E. A. Varaksina, M. E. Minyaev, I. E. Nifantiev
{"title":"Europium Coordination Compounds for the Design of a Polyethylene-Based Luminescent Composite Material","authors":"D. M. Roitershtein, L. N. Puntus, E. A. Varaksina, M. E. Minyaev, I. E. Nifantiev","doi":"10.1134/S1070328424601432","DOIUrl":"10.1134/S1070328424601432","url":null,"abstract":"<p>The reaction of europium dibenzoylmethanate complex Na<sup>+</sup>[Eu(Dbm)<sub>4</sub>]<sup>–</sup> with 1-alkyl-4-dimethylaminopyridinium salts gives compounds [RNC<sub>5</sub>H<sub>4</sub>NMe<sub>2</sub>]<sup>+</sup>[Eu(Dbm)<sub>4</sub>]<sup>–</sup> (Dbm = [PhC(O)CHC(O)–Ph]), where R = C<sub>10</sub>H<sub>21</sub> (<b>I</b>) or a set of oligomers C<sub><i>n</i></sub>H<sub>2<i>n</i>+1</sub>, (<i>n</i> is even) ([(R-NC<sub>5</sub>H<sub>4</sub>NMe<sub>2</sub>)]I) with a weight-average molecular weight <i>M</i><sub>w</sub> = 1520 (<b>II</b>). The molecular structure of complex <b>I</b> was established by X-ray diffraction analysis (CCDC no. 2405293). Compounds <b>I</b> and <b>II</b> were used as the luminescent components for a luminescent composite material based on low-density polyethylene (LDPE). The optical properties of complexes <b>I</b> and <b>II</b> and LDPE-based composite materials prepared using <b>I</b> and <b>II</b> were investigated.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 3","pages":"218 - 225"},"PeriodicalIF":1.1,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142571","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":"Monovalent Lanthanide Compounds","authors":"S. Yu. Bukhvalova, A. A. Fagin, M. N. Bochkarev","doi":"10.1134/S1070328424601407","DOIUrl":"10.1134/S1070328424601407","url":null,"abstract":"<p>The article is devoted to lanthanide compounds containing a monovalent metal. Reactions leading to the formation of monovalent derivatives LnX as final products and/or unstable intermediates are presented. Methods for identifying the metal valence state and the properties of the compounds are discussed.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 3","pages":"153 - 159"},"PeriodicalIF":1.1,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142573","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. V. Aleksanyan, Yu. V. Nelyubina, Z. S. Klemenkova, V. A. Kozlov
{"title":"Solid-Phase Cyclopalladation of Bis(thioamide) Pincer Ligands Based on m-Phenylenediamine","authors":"D. V. Aleksanyan, Yu. V. Nelyubina, Z. S. Klemenkova, V. A. Kozlov","doi":"10.1134/S1070328424601535","DOIUrl":"10.1134/S1070328424601535","url":null,"abstract":"<p>In recent years, the trend towards developing more efficient and green approaches to the synthesis of chemical compounds has engulfed new areas of chemistry, including organometallic synthesis. In this work, the peculiarities of direct cyclopalladation of <i>m</i>-phenylenediamine-based bis(thioamide) ligands are studied both in solution and in the absence of a solvent in order to estimate the possibility of obtaining target Pd(II) pincer complexes using a more ecologically friendly methodology.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 3","pages":"192 - 199"},"PeriodicalIF":1.1,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142576","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. A. Bushuev, D. S. Yambulatov, N. V. Gogoleva, F. M. Dolgushin, I. V. Skabitsky, S. S. Shapovalov, S. A. Nikolaevskii, M. A. Kiskin, I. L. Eremenko
{"title":"New 2D Coordination Polymer of Cobalt(II) Pivalate with 1,4-Diaminobutane: Synthesis and Thermal Properties","authors":"V. A. Bushuev, D. S. Yambulatov, N. V. Gogoleva, F. M. Dolgushin, I. V. Skabitsky, S. S. Shapovalov, S. A. Nikolaevskii, M. A. Kiskin, I. L. Eremenko","doi":"10.1134/S1070328424601456","DOIUrl":"10.1134/S1070328424601456","url":null,"abstract":"<p>The reaction of cobalt(II) trimethyl acetate (pivalate) [Co(Рiv)<sub>2</sub>]<sub><i>n</i></sub> (HРiv = HO<sub>2</sub>CCMe<sub>3</sub>) with 1,4-diaminobutane (Dab) in powder XRD acetonitrile affords 2D coordination polymer [Co(Piv)<sub>2</sub>(Dab)<sub>2</sub>]<sub><i>n</i></sub> (<b>I</b>) with a coproduct impurity, but the addition of one equivalent of 2,2'-bipyridine to the reaction mixture makes it possible to isolate a single-phase sample of compound <b>I</b> (according to the powder XRD X-ray diffraction (XRD) data) in a yield of 78%. The crystal structure of compound <b>I</b> is determined by XRD (CIF file CCDC no. 2404406): the cobalt(II) atoms in the distorted octahedral environment (CoN<sub>4</sub>O<sub>2</sub>) of two monodentate carboxylate groups and four bridging Dab molecules form a layered coordination polymer with the honeycomb topology <b>hcb</b>. The thermal behavior of compound <b>I</b> is studied by simultaneous thermal analysis: the thermal decomposition of compound <b>I</b> leads to the formation of organic salt (H<sub>2</sub>Dab)(Piv)<sub>2</sub>, cobalt(II) pivalate, and octahedral complex [Co<sub>8</sub>O<sub>2</sub>(Piv)<sub>12</sub>]. The products are identified by powder XRD and NMR spectroscopy.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 2","pages":"112 - 118"},"PeriodicalIF":1.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135379","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}
I. A. Nikovskii, E. S. Safiullina, Yu. V. Nelyubina
{"title":"Synthesis of Nickel(II) Complexes with 2,6-Dichlorophenyl-Substituted Pyridylpyrazole","authors":"I. A. Nikovskii, E. S. Safiullina, Yu. V. Nelyubina","doi":"10.1134/S1070328424601511","DOIUrl":"10.1134/S1070328424601511","url":null,"abstract":"<p>The reaction of new 2-(2,6-dichlorophenyl)-5-(pyridin-2-yl)-2,4-dihydro-3<i>H</i>-pyrazol-3-one (L) with nickel(II) chloride resulted in the synthesis of the mononuclear nickel(II) complex [L<sub>2</sub>Ni(CH<sub>3</sub>OH)]Cl (<b>I</b>). The methanol solvate of complex <b>I</b>, [L<sub>2</sub>Ni(CH<sub>3</sub>OH)]Cl·3CH<sub>3</sub>OH, and the free ligand L were characterized by X-ray diffraction (CCDC no. 2314989 (<b>I</b>), 2314988 (L)). It was shown that free L exists in solution in the pyrazolone form (according to the <sup>1</sup>H NMR data), while in crystalline complex <b>I</b>, L is in the pyrazolol form (X-ray diffraction data). Compound <b>I</b> is a rare example of a pyrazolol complex in which the oxygen atom is not involved in the coordination to the transition metal ion to give a coordination polymer.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 2","pages":"95 - 103"},"PeriodicalIF":1.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135382","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. Serezhkin, M. S. Grigoriev, M. V. Sukacheva, L. B. Serezhkina
{"title":"Structures of Binuclear Fluorooxalatouranylates Rb5[(UO2)2(C2O4)4F]⋅2H2O and Ba5[(UO2)2(C2O4)4F]2⋅22H2O","authors":"V. N. Serezhkin, M. S. Grigoriev, M. V. Sukacheva, L. B. Serezhkina","doi":"10.1134/S1070328424601353","DOIUrl":"10.1134/S1070328424601353","url":null,"abstract":"<p>The structures of novel crystals of Rb<sub>5</sub>[(UO<sub>2</sub>)<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)<sub>4</sub>F]·2H<sub>2</sub>O (<b>I</b>) and Ba<sub>5</sub>[(UO<sub>2</sub>)<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)<sub>4</sub>F]<sub>2</sub>⋅22H<sub>2</sub>O (<b>II</b>) (CIF files CCDC nos. 2392480 (<b>I</b>) and 2392481 (<b>II</b>)) are studied by X‑ray diffraction (XRD). The uranyl-containing structural units are the binuclear complexes of the same composition [(UO<sub>2</sub>)<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)<sub>4</sub>F]<sup>5–</sup> but with different structures, which are described by the crystallochemical formulas <span>({{{text{A}}}_{{text{2}}}}{{{text{T}}}^{{11}}}{text{B}}_{{text{3}}}^{{{text{01}}}}{{{text{M}}}^{{text{1}}}})</span> (<b>I</b>) and <span>({{{text{A}}}_{{text{2}}}}{text{B}}_{{text{4}}}^{{{text{01}}}}{{{text{M}}}^{{text{2}}}})</span> (<b>II</b>) (A = <span>({text{UO}}_{{text{2}}}^{{{text{2 + }}}})</span>, T<sup>11</sup> or B<sup>01</sup> = <span>({{{text{C}}}_{{text{2}}}}{text{O}}_{{text{4}}}^{{{text{2}} - }})</span>, M<sup>1</sup> or M<sup>2</sup> = F<sup>–</sup>). The complexes contain crystallographically nonequivalent U(VI) atoms, which are components of the uranyl ions and implement the pentagonal bipyramidal coordination. In compound <b>I</b>, the U(VI) atoms form coordination polyhedra UO<sub>2</sub>FO<sub>4</sub> and UO<sub>2</sub>O<sub>5</sub>, and only UO<sub>2</sub>FO<sub>4</sub> are formed in compound <b>II.</b> In both structures, the binuclear [(UO<sub>2</sub>)<sub>2</sub>(C<sub>2</sub>O<sub>4</sub>)<sub>4</sub>F]<sup>5–</sup> complexes are linked into a 3D framework due to coordination bonds R–O and R–F (R = Rb or Ba). The water molecules involved in the formation of a set of hydrogen bonds are localized in voids of the 3D framework. The IR spectroscopy results for compounds <b>I</b> and <b>II</b> are consistent with the XRD data.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 2","pages":"104 - 111"},"PeriodicalIF":1.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135520","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":"New Nickel Pincer Complexes Based on Pentamethylruthenocene","authors":"S. V. Safronov, Yu. V. Nelyubina","doi":"10.1134/S1070328424601559","DOIUrl":"10.1134/S1070328424601559","url":null,"abstract":"<p>New nickel(II) pincer complexes based on the pentamethylruthenocene, NiCl[{2,5-(R<sub>2</sub>PCH<sub>2</sub>)<sub>2</sub>C<sub>5</sub>H<sub>2</sub>}Ru(Cp*)] (Cp* = C<sub>5</sub>Me<sub>5</sub>, <b>Ia</b>: R = <sup><i>t</i></sup>Bu; <b>Ib</b>: R = <sup><i>i</i></sup>Pr), were synthesized via a two-step route starting from the 1,3-functionally substituted diol {1,3-(HOCH<sub>2</sub>)C<sub>5</sub>H<sub>3</sub>}Ru(Cp*). In the first step, diol was reacted with dialkylphosphines (<sup><i>t</i></sup>Bu<sub>2</sub>PH, <sup><i>i</i></sup>Pr<sub>2</sub>PH) in acetic acid to give diphosphines{1,3-(R<sub>2</sub>PCH<sub>2</sub>)<sub>2</sub>C<sub>5</sub>H<sub>3</sub>}Ru(Cp*) (R <b>=</b> <sup><i>t</i></sup>Bu; <sup><i>i</i></sup>Pr), which were not isolated in a pure state, but after the removal AcOH, was immediately subjected to cyclometallation with nickel(II) chloride hexahydrate in the presence of pyridine. After all purification procedures, the yields of products <b>Ia</b> and <b>Ib</b> were 31 and 16%, respectively. The complexes were fully characterized by <sup>1</sup>H, <sup>31</sup>P{<sup>1</sup>H}, and <sup>13</sup>C{<sup>1</sup>H} NMR spectroscopy data. The purity of the products was confirmed by elemental analysis. The structure of complex <b>Ia</b> was established by single crystal X-ray diffraction (CCDC no. 2408463).</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"51 2","pages":"129 - 134"},"PeriodicalIF":1.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135380","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}