S. I. Dorovskikh, A. S. Sukhikh, V. A. Yatygin, A. E. Turgambaeva, E. A. Maximovskiy, D. P. Pishchur, E. S. Vikulova
{"title":"Cobalt(II) Complexes with Fluorinated β-Diketones and Their Derivatives for MOCVD Applications","authors":"S. I. Dorovskikh, A. S. Sukhikh, V. A. Yatygin, A. E. Turgambaeva, E. A. Maximovskiy, D. P. Pishchur, E. S. Vikulova","doi":"10.1134/S1070363224613292","DOIUrl":null,"url":null,"abstract":"<p>A series of new volatile cobalt(II) chelates with ligands containing an extended perfluoroalkyl group, [CH<sub>3</sub>C(X)CHC(O)R]<sup>–</sup>, R = C<sub>2</sub>F<sub>5</sub>, X = O (L<sup>1</sup>) or NH (NL<sup>1</sup>); R = C<sub>3</sub>F<sub>7</sub>, X = O (L<sup>2</sup>) or NH (NL<sup>2</sup>), were obtained via a salt metathesis reaction. Elemental analysis and IR spectroscopy were used to confirm the formation of heteroligand complexes [Со(H<sub>2</sub>O)<sub>2</sub>(L<sup>1</sup>)<sub>2</sub>] and [Со(H<sub>2</sub>O)<sub>2</sub>(L<sup>2</sup>)<sub>2</sub>]·<i>n</i>H<sub>2</sub>O (<i>n</i> = 1, 2) in the case of β-diketonates, while homoligand complexes [Со(NL<sup>1</sup>)<sub>2</sub>] and [Со(NL<sup>2</sup>)<sub>2</sub>] were obtained for β-iminoketonates. Single-crystal X-ray diffraction revealed the structures of [Со(CH<sub>3</sub>OH)<sub>2</sub>(L<sup>1</sup>)<sub>2</sub>] (Im, CCDC 2374366) and [Со(H<sub>2</sub>O)<sub>2</sub>(L<sup>2</sup>)<sub>2</sub>]·H<sub>2</sub>O (CCDC 2374367), and comparison with related compounds allowed for the identification of specific structural features of heteroligand cobalt(II) complexes. The thermal behavior of the synthesized complexes was investigated using thermogravimetry and differential scanning calorimetry. The feasibility of chemical vapor deposition of Cо<sub>3</sub>О<sub>4</sub> nanomaterials from [Со(NL<sup>1</sup>)<sub>2</sub>]. was demonstrated. The obtained samples were characterized by X-ray phase analysis, Raman spectroscopy, and scanning electron microscopy.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"95 3","pages":"690 - 703"},"PeriodicalIF":0.9000,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of General Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S1070363224613292","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
A series of new volatile cobalt(II) chelates with ligands containing an extended perfluoroalkyl group, [CH3C(X)CHC(O)R]–, R = C2F5, X = O (L1) or NH (NL1); R = C3F7, X = O (L2) or NH (NL2), were obtained via a salt metathesis reaction. Elemental analysis and IR spectroscopy were used to confirm the formation of heteroligand complexes [Со(H2O)2(L1)2] and [Со(H2O)2(L2)2]·nH2O (n = 1, 2) in the case of β-diketonates, while homoligand complexes [Со(NL1)2] and [Со(NL2)2] were obtained for β-iminoketonates. Single-crystal X-ray diffraction revealed the structures of [Со(CH3OH)2(L1)2] (Im, CCDC 2374366) and [Со(H2O)2(L2)2]·H2O (CCDC 2374367), and comparison with related compounds allowed for the identification of specific structural features of heteroligand cobalt(II) complexes. The thermal behavior of the synthesized complexes was investigated using thermogravimetry and differential scanning calorimetry. The feasibility of chemical vapor deposition of Cо3О4 nanomaterials from [Со(NL1)2]. was demonstrated. The obtained samples were characterized by X-ray phase analysis, Raman spectroscopy, and scanning electron microscopy.
期刊介绍：
Russian Journal of General Chemistry is a journal that covers many problems that are of general interest to the whole community of chemists. The journal is the successor to Russia’s first chemical journal, Zhurnal Russkogo Khimicheskogo Obshchestva (Journal of the Russian Chemical Society ) founded in 1869 to cover all aspects of chemistry. Now the journal is focused on the interdisciplinary areas of chemistry (organometallics, organometalloids, organoinorganic complexes, mechanochemistry, nanochemistry, etc.), new achievements and long-term results in the field. The journal publishes reviews, current scientific papers, letters to the editor, and discussion papers.
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