K. A. Vinogradova, M. I. Rakhmanova, M. D. Taigina, N. V. Pervukhina, D. Yu. Naumov, V. A. Sannikova, I. R. Filippov, D. S. Kolybalov, A. Yu. Vorob’ev
{"title":"Heteroleptic Ionic Copper(I) Complexes Based on Pyrazolo[1,5-a][1,10]phenanthrolines: Synthesis, Structure, and Photoluminescence","authors":"K. A. Vinogradova, M. I. Rakhmanova, M. D. Taigina, N. V. Pervukhina, D. Yu. Naumov, V. A. Sannikova, I. R. Filippov, D. S. Kolybalov, A. Yu. Vorob’ev","doi":"10.1134/S1070328424600657","DOIUrl":"10.1134/S1070328424600657","url":null,"abstract":"<p>Heteroleptic copper(I) tetrafluoroborate complexes with pyrazolo[1,5-<i>a</i>][1,10]phenanthrolines (L<sup><i>n</i></sup>, <i>n</i> = 1–3) and bis[(2-diphenylphosphino)phenyl] ether (POP) were synthesized and structurally characterized. The coordination compounds with the general formula [CuL<sup><i>n</i></sup>(POP)]BF<sub>4</sub>·Solv (<i>n</i> = 1, Solv = 0.5MeCN, complex <b>I</b>; <i>n</i> = 2, Solv = 0.5CH<sub>2</sub>Cl<sub>2</sub>, complex <b>II</b>; <i>n</i> = 3, Solv = 1.25Et<sub>2</sub>O, complex <b>III</b>·Et<sub>2</sub>O) were prepared by the reaction of CuBF<sub>4</sub> with L<sup><i>n</i></sup> and POP in organic solvents (MeCN/CH<sub>2</sub>Cl<sub>2</sub>/Et<sub>2</sub>O) at 1 : 1 : 1 molar ratio. Compound <b>III</b>·Et<sub>2</sub>O gradually loses solvate molecules to be converted to the complex [CuL<sup>3</sup>(POP)]BF<sub>4</sub> (<b>III</b>). According to single-crystal X-ray diffraction data, the complexes (<b>I</b>, <b>II</b>, <b>III</b>·Et<sub>2</sub>O) are ionic; in complex cation [CuLn(POP)]<sup>+</sup> the coordination environment of the copper atom is a distorted tetrahedron with CuN<sub>2</sub>P<sub>2</sub> chromophore. The photoluminescence properties of the obtained complexes (<b>I</b>–<b>III</b>) were studied in the solid state and in solution. In the absorption spectra of the complexes, a charge transfer band is observed at 380–385 nm; excitation in this range gives rise to two emission bands at 480 and 650 nm in solution. In the solid state, the complexes show photoluminescence only in the red range (λ<sub>max</sub> = 600–610 nm) with microsecond lifetimes. It was found that complexes <b>I</b> and <b>III</b> with a more perfect tetrahedral environment have quantum yields an order of magnitude higher than the quantum yield observed for complex <b>II</b>.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595487","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. E. Bardina, E. V. Makotchenko, K. P. Birin, E. S. Shremzer, P. A. Abramov, Yu. G. Gorbunova, A. L. Gushchin
{"title":"Synthesis and Structure of Gold(III) Compounds with i-Pr- and t-Bu-Substituted Tetraarylporphyrins","authors":"E. E. Bardina, E. V. Makotchenko, K. P. Birin, E. S. Shremzer, P. A. Abramov, Yu. G. Gorbunova, A. L. Gushchin","doi":"10.1134/S1070328424600591","DOIUrl":"10.1134/S1070328424600591","url":null,"abstract":"<p>Gold(III) compounds with tetrakis(4-<i>tert</i>-butylphenyl)porphyrin, [Au(TTBPP)][AuCl<sub>4</sub>] (<b>I</b>), and with tetrakis(4-isopropylphenyl)porphyrin, [Au(TIPPP)][AuCl<sub>4</sub>] (<b>II</b>), were synthesized for the first time. The obtained compounds were characterized by elemental analysis, <sup>1</sup>H NMR spectroscopy, cyclic voltammetry, and X-ray diffraction analysis of solvated complexes (CCDC no. 2333206 (<b>Ia</b>) and 2333207 (<b>IIa</b>)). Study of the structures of the obtained gold(III) complexes confirmed their specific character consisting in the formation of additional Au⋯Au and Au⋯Cl contacts between neighboring complexes giving weak intermolecular bonds.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595458","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. V. Avdeeva, A. S. Kubasov, I. V. Kozerozhets, S. E. Nikiforova, E. A. Malinina, N. T. Kuznetsov
{"title":"Synthesis and Structures of Mixed-Ligand Lead(II) Complexes with Decahydro-closo-decaborate Anion and Azheterocyclic Ligands","authors":"V. V. Avdeeva, A. S. Kubasov, I. V. Kozerozhets, S. E. Nikiforova, E. A. Malinina, N. T. Kuznetsov","doi":"10.1134/S1070328424600517","DOIUrl":"10.1134/S1070328424600517","url":null,"abstract":"<p>Lead(II) complexation reactions were studied in the presence of salts of the <i>closo</i>-decaborate anion [B<sub>10</sub>H<sub>10</sub>]<sup>2–</sup> and azaheterocyclic ligands 2,2'-bipyridyl (bipy) or 1,10-phenanthroline (phen) in water and organic solvents (acetonitrile, DMF). Binuclear complex Pb(bipy)<sub>2</sub>[B<sub>10</sub>H<sub>10</sub>] and polymer complex [Pb(phen)[B<sub>10</sub>H<sub>10</sub>]] were isolated. The effect of solvents and reagent ratios on the composition and structures of the final complexes was studied. The complex compounds were identified by elemental analysis, IR spectroscopy, and X-ray powder diffraction. The structure of complex [Pb(bipy)<sub>2</sub>[B<sub>10</sub>H<sub>10</sub>]]<sub>2</sub>·2CH<sub>3</sub>CN (CCDC no. 2325841) was determined by single-crystal X-ray diffraction.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595459","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. S. Bazhina, M. A. Shmelev, M. A. Kiskin, I. L. Eremenko
{"title":"Coordination Polymers Ca(II)–Cr(III) and Ba(II)–Cr(III) with Cyclobutane-1,1-dicarboxylic Acid Anions","authors":"E. S. Bazhina, M. A. Shmelev, M. A. Kiskin, I. L. Eremenko","doi":"10.1134/S1070328424600566","DOIUrl":"10.1134/S1070328424600566","url":null,"abstract":"<p>The reactions of Cr(NO<sub>3</sub>)<sub>3</sub>·9H<sub>2</sub>O with barium and calcium salts of cyclobutane-1,1-dicarboxylic acid (H<sub>2</sub>Cbdc) in a ratio of 1 : 3 in an aqueous solution are studied. The reaction products isolated in the crystalline state are shown to be compounds formed by the binuclear tetraanionic units [Cr<sub>2</sub>(OH)<sub>2</sub>(Cbdc)<sub>4</sub>]<sup>4–</sup>, and the nature of the alkaline-earth metal ion introduced into the synthesis affects the dimensionality of the formed polymeric structure. The 2D polymeric compound {[Ba<sub>2</sub>Cr<sub>2</sub>(OH)<sub>2</sub>(Cbdc)<sub>4</sub>(H<sub>2</sub>O)<sub>5</sub>]·3H<sub>2</sub>O}<sub><i>n</i></sub> (<b>I</b>) is formed in the reaction with Ba(Cbdc), and the replacement of Ba<sup>2+</sup> by Ca<sup>2+</sup> results in the formation of the 1D coordination polymer {[Ca<sub>2</sub>Cr<sub>2</sub>(OH)(Cbdc)<sub>4</sub>(H<sub>2</sub>O)<sub>6</sub>]·8H<sub>2</sub>O}<sub><i>n</i></sub> (<b>II</b>). The crystal structures of compounds <b>I</b> and <b>II</b> are determined by single-crystal XRD (CIF files CCDC nos. 2344872 (<b>I</b>) and 2344873 (<b>II</b>), respectively).</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595488","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}
P. A. Abramov, N. B. Kompan’kov, V. S. Sulyaeva, M. N. Sokolov
{"title":"Optimization of the Synthesis of Salts [V10O28]6– for the Preparation of [VO2(DMSO)4](CF3SO3) and Its Immobilization on Polyethylene Terephthalate for Catalytic Applications","authors":"P. A. Abramov, N. B. Kompan’kov, V. S. Sulyaeva, M. N. Sokolov","doi":"10.1134/S107032842460061X","DOIUrl":"10.1134/S107032842460061X","url":null,"abstract":"<p>Aspects of the synthesis and isolation of (Bu<sub>4</sub>N)<sub>3</sub>[H<sub>3</sub>V<sub>10</sub>O<sub>28</sub>] (<b>I</b>) and Na<sub>6</sub>[V<sub>10</sub>O<sub>28</sub>]·18H<sub>2</sub>O (<b>II</b>) from one reaction mixture are considered. The procedure for the synthesis of compound <b>I</b> is optimized. The reaction of compound <b>I</b> and HSO<sub>3</sub>CF<sub>3</sub> in dimethyl sulfoxide (DMSO) affords complex [VO<sub>2</sub>(DMSO)<sub>4</sub>](CF<sub>3</sub>-SO<sub>3</sub>) (<b>III</b>). A possibility of using complex <b>III</b> for the preparation of catalytically active materials based on polyethylene terephthalate (PET) is shown.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595489","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}
M. A. Shmelev, T. D. Shatrov, O. V. Zvereva, A. A. Levina, Yu. K. Voronina, A. A. Sidorov, I. L. Eremenko
{"title":"Mixed-Carboxylate Cadmium–Europium Compounds with Monocarboxylic Acid Anions","authors":"M. A. Shmelev, T. D. Shatrov, O. V. Zvereva, A. A. Levina, Yu. K. Voronina, A. A. Sidorov, I. L. Eremenko","doi":"10.1134/S1070328424600554","DOIUrl":"10.1134/S1070328424600554","url":null,"abstract":"<p>A series of mixed-carboxylate EuCd compounds with 1,10-phenanthroline (phen) and anions of benzoic H(Bz), pentabenzoic H(Pfb), 3,5-dinitrobenzoic H(3,5-Nbz), and 3,5-di-<i>tert</i>-butylbenzoic H(Dtbbz) acids is synthesized: [Eu<sub>2</sub>Cd<sub>2</sub>(phen)<sub>2</sub>(Рfb)<sub>5,4</sub>(Bz)<sub>4,6</sub>]·2MeCN (<b>I</b>), [Eu<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>Cd<sub>2</sub>(phen)<sub>2</sub>(3,5-Nbz)<sub>4,1</sub>(Bz)<sub>5,9</sub>] (<b>II</b>), and [EuCd<sub>2</sub>(EtOH)<sub>4</sub>(Dtbbz)<sub>6</sub>(Pfb)] (<b>III</b>). The variation of combinations of aromatic anions makes it possible to reveal the influence of diverse factors on the compositions and structures of new compounds. In the case of benzoate‒pentafluorobenzoate compound <b>I</b> and 3,5-dinitrobenzoate‒benzoate compound <b>II</b>, the aromatic substituents of the anions have nonintegral populations and occupy close positions in the structure of the complex. The combination of the more bulky 3,5-di-<i>tert</i>-butylbenzoate and pentafluorobenzoate anions in compound <b>III</b> results in the formation of a compound with integral populations of the positions of the anions. The synthesized compounds are characterized by XRD, IR spectroscopy, and C,H,N elemental analysis.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595457","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":"Structural Modifications of the Platinum(II) Isocyanide Complexes Changing Their Solid-State Luminescence","authors":"E. V. Antonova, M. A. Sandzhieva, M. A. Kinzhalov","doi":"10.1134/S1070328424600803","DOIUrl":"10.1134/S1070328424600803","url":null,"abstract":"<p>Cyclometallated platinum(II) complexes with the general formula [Pt(Рpy)(CNR)<sub>2</sub>]X (HРpy = 2‑phenylpyridine; R = <sup><i>i</i></sup>Pr, <sup><i>t</i></sup>Bu, Cy; X = BF<sub>4</sub>, OTf, PF<sub>6</sub>) containing various alkylisocyanide ligands and counterions are synthesized. The compounds are studied by elemental analysis, ESI HRMS, IR spectroscopy, and <sup>1</sup>H, <sup>13</sup>C{<sup>1</sup>H}, and <sup>195</sup>Pt{<sup>1</sup>H} NMR spectroscopy. The structures of [Pt(Рpy)(CN<sup><i>i</i></sup>Pr)<sub>2</sub>]BF<sub>4</sub> and [Pt(Рpy)(CN<sup><i>t</i></sup>Bu)<sub>2</sub>]BF<sub>4</sub> are determined by XRD (CIF files CCDC nos. 2325595 and 2325527, respectively). The photophysical properties in the solution and in the solid state of the synthesized compounds are studied.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595460","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}
B. V. Chal’tsev, A. S. Burlov, V. G. Vlasenko, Yu. V. Koshchienko, A. A. Zubenko, A. I. Klimenko, V. A. Lazarenko, S. A. Mashchenko, E. V. Korshunova, T. V. Lifintseva
{"title":"Copper(II) 2-(N-Tosylamino)benzaldehyde Benzoylhydrazone Complexes: Synthesis, Structures, Properties, and Biological Activity","authors":"B. V. Chal’tsev, A. S. Burlov, V. G. Vlasenko, Yu. V. Koshchienko, A. A. Zubenko, A. I. Klimenko, V. A. Lazarenko, S. A. Mashchenko, E. V. Korshunova, T. V. Lifintseva","doi":"10.1134/S1070328424600438","DOIUrl":"10.1134/S1070328424600438","url":null,"abstract":"<p>A number of new copper(II) complexes of 2-(<i>N</i>-tosylamino)benzaldehyde benzoylhydrazone (H<sub>2</sub>L) CuLL<sup><i>n</i></sup> (<i>n</i> = 1–6) with heterocyclic donor ligands (L<sup>1</sup> = 1-propyl-2-aminobenzimidazole, L<sup>2</sup> = 1‑hexyl-2-aminobenzimidazole, L<sup>3</sup> = 1-octyl-2-aminobenzimidazole, L<sup>4</sup> = 2,2'-bipyridine, L<sup>5</sup> = 1,10-phenanthroline, and L<sup>6</sup> = 2-aminopyridine) is synthesized. The structures and compositions of the synthesized compounds are determined by elemental analysis, <sup>1</sup>Н NMR spectroscopy, IR spectroscopy, and magnetochemistry. The molecular structures of complexes CuLL<sup>1,2,4−6</sup> are determined by XRD (CIF files CCDC nos. 2341480 (CuLL<sup>1</sup>), 2341468 (CuLL<sup>2</sup>), 2341478 (CuLL<sup>4</sup>), 2341477 (CuLL<sup>5</sup>), and 2341479 (CuLL<sup>6</sup>)). The biological activity of the complexes is studied. The adducts with L<sup>1</sup>, L<sup>2</sup>, and L<sup>6</sup> exhibit a significantly higher anti-protist activity than chloroquine used as the reference compound.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595405","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}
M. V. Melikhov, D. V. Korchagin, Yu. P. Tupolova, L. D. Popov, V. A. Chetverikova, V. V. Tkachev, A. N. Utenyshev, N. N. Efimov, I. N. Shcherbakov, S. M. Aldoshin
{"title":"Complexes of Hexacoordinated Ni(II) Based on Diacetyl Bis-hetarylhydrazones: Structures and Magnetic Properties","authors":"M. V. Melikhov, D. V. Korchagin, Yu. P. Tupolova, L. D. Popov, V. A. Chetverikova, V. V. Tkachev, A. N. Utenyshev, N. N. Efimov, I. N. Shcherbakov, S. M. Aldoshin","doi":"10.1134/S1070328424600396","DOIUrl":"10.1134/S1070328424600396","url":null,"abstract":"<p>Mononuclear nickel complexes [NiL<sup>1</sup>(NCS)<sub>2</sub>]·2DMSO (<b>I</b>), [NiL<sup>1</sup>(NCS)<sub>2</sub>]·DMF (<b>II</b>), and [NiL<sup>2</sup>(NCS)<sub>2</sub>]·0.5CH<sub>3</sub>OH·1.5H<sub>2</sub>O (<b>III</b>) with the distorted octahedral coordination node, where L<sup>1</sup> and L<sup>2</sup> are the tetradentate ligand systems derived from the products of the condensation of diacetyl with 2-hydrazinoquinoline and 2-hydrazino-4,6-dimethylpyrimidine, respectively, are synthesized. The structures of the compounds are determined by IR spectroscopy and XRD (CIF files ССDС nos. 2219793 (<b>I</b>), 2142035 (<b>II</b>), and 2219794 (<b>III</b>)). The quantum chemical modeling of the axial parameter of magnetic anisotropy in the zero field (<i>D</i>) is performed for the synthesized compounds in the framework of the SA-CASSCF+NEVPT2 method. The complexes are shown to be characterized by three-axis magnetic anisotropy close to the light magnetization plane with positive <i>D</i>. The axial parameter of magnetic anisotropy (<i>D</i><sub>exp</sub> = 8.79 cm<sup>−1</sup>) determined by the approximation of the magnetometry data on complex [NiL<sup>2</sup>(NCS)<sub>2</sub>]·0.5CH<sub>3</sub>OH·1.5H<sub>2</sub>O is consistent with the calculated value (<i>D</i><sub>calc</sub> = 11.5 cm<sup>−1</sup>).</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182693","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. K. Rubtsova, P. N. Vasilyev, J. K. Voronina, M. A. Shmelev, N. N. Efimov, S. A. Nikolaevskii, I. L. Eremenko, M. A. Kiskin
{"title":"Imidazolium Salts with Heterometallic Complex Anions [Co2Li2(Piv)8]2–: Synthesis, Structures, and Magnetic Properties","authors":"I. K. Rubtsova, P. N. Vasilyev, J. K. Voronina, M. A. Shmelev, N. N. Efimov, S. A. Nikolaevskii, I. L. Eremenko, M. A. Kiskin","doi":"10.1134/S1070328424600256","DOIUrl":"10.1134/S1070328424600256","url":null,"abstract":"<p>Imidazolium salts with complex anions [Co<sub>2</sub>Li<sub>2</sub>(Piv)<sub>8</sub>]<sup>2–</sup> are formed as undesirable products of the reactions of heterometallic compound [Co<sub>2</sub>Li<sub>2</sub>(Piv)<sub>6</sub>(Py)<sub>2</sub>] with N-heterocyclic carbenes ItBu and IPr. The study of the magnetic properties of complex (HI<i>t</i>Bu)<sub>2</sub>[Co<sub>2</sub>Li<sub>2</sub>(µ<sup>2</sup>-Piv)<sub>6</sub>(κ<sup>1</sup>-Piv)<sub>2</sub>] shows that this compound is a single molecule magnet. Slow magnetic relaxation in the complex occurs due to a combination of the direct and Raman mechanisms.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182708","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}