I. A. Nikovskii, A. N. Sinel’nikov, A. S. Bogomyakov, A. V. Borodulina, Yu. V. Nelyubina
{"title":"锰（II）与酰基吡唑啉配合物的顺式和反式异构","authors":"I. A. Nikovskii, A. N. Sinel’nikov, A. S. Bogomyakov, A. V. Borodulina, Yu. V. Nelyubina","doi":"10.1134/S1070328424601547","DOIUrl":null,"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":1.1000,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"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\":null,\"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\":1.1000,\"publicationDate\":\"2025-06-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Russian Journal of Coordination Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1070328424601547\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Coordination Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S1070328424601547","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
cis- and trans-Isomerism in Manganese(II) Complexes with Acylpyrazolonepyridine
The reaction between 1-(5-hydroxy-1-methyl-3-(pyridin-2-yl)-1H-pyrazol-4-yl)ethan-1-one (L) and manganese(II) acetate afforded two new manganese(II) complexes with trans and cis configurations of the acylpyrazolone ligands—trans-L2Mn(MeOH)2 (trans-I) and cis-L2Mn(MeOH)2 (cis-I),—characterized by elemental analysis and X-ray diffraction (CCDC nos. 2408806 and 2408805, respectively). The less stable (cis-I) 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 (trans-I) isomer in DMF solution. According to magnetometry and EPR spectroscopy, they display slightly different magnetic properties.
期刊介绍：
Russian Journal of Coordination Chemistry is a journal that publishes reviews, original papers, and short communications on all aspects of theoretical and experimental coordination chemistry. Modern coordination chemistry is an interdisciplinary science that makes a bridge between inorganic, organic, physical, analytical, and biological chemistry.
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