S. S. Krutskikh, D. V. Kochelakov, A. A. Nazarova, I. V. Korolkov, L. N. Zelenina, E. S. Vikulova
{"title":"不对称氟化镁β-二酮酸配合物的合成、结构和性质","authors":"S. S. Krutskikh, D. V. Kochelakov, A. A. Nazarova, I. V. Korolkov, L. N. Zelenina, E. S. Vikulova","doi":"10.1134/S0022476624110131","DOIUrl":null,"url":null,"abstract":"<p>New complexes of magnesium with asymmetric fluorinated β-diketones are synthesized: pentafluoropropionyl (Hpfpac, 6,6,6,5,5-pentafluorohexane-2,4-dione) and heptafluorobutyrylacetone (Hhfbac, 7,7,7,6,6,5,5-heptafluoroheptane-2,4-dione). The [Mg(H<sub>2</sub>O)(EtOH)(pfpac)<sub>2</sub>] <b>1</b> and [Mg(H<sub>2</sub>O)<sub>2</sub>(hfbac)<sub>2</sub>]·H<sub>2</sub>O <b>2 </b>phases are characterized by a number of methods. The structures of crystals of <b>1</b>, <b>2</b>, and [Mg(EtOH)<sub>2</sub>(hfbac)<sub>2</sub>] <b>3 </b>are determined by the single crystal X-ray diffraction analysis. Magnesium atoms have a distorted octahedral environment, and neutral ligands are in the <i>trans</i>-position. Molecules are involved in systems of OH⋯O<sub>dik</sub> hydrogen bonds, forming layers (<b>2</b>) or chains (<b>1</b>, <b>3</b>). A relative evaluation shows that <b>2</b> is more volatile than <b>1</b>. Structures of molecules and packing characters are compared with those of a series of related β-diketonate complexes. The effect of an increase in the ligand perfluoroalkyl chain (L = tfac, trifluoroacetylacetonate ion), including isoformular [Mg(H<sub>2</sub>O)<sub>2</sub>(L)<sub>2</sub>]·H<sub>2</sub>O, is shown.</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":"65 11","pages":"2260 - 2271"},"PeriodicalIF":1.2000,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis, Structure, and Properties of Asymmetric Fluorinated Magnesium β-Diketonate Complexes\",\"authors\":\"S. S. Krutskikh, D. V. Kochelakov, A. A. Nazarova, I. V. Korolkov, L. N. Zelenina, E. S. Vikulova\",\"doi\":\"10.1134/S0022476624110131\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>New complexes of magnesium with asymmetric fluorinated β-diketones are synthesized: pentafluoropropionyl (Hpfpac, 6,6,6,5,5-pentafluorohexane-2,4-dione) and heptafluorobutyrylacetone (Hhfbac, 7,7,7,6,6,5,5-heptafluoroheptane-2,4-dione). The [Mg(H<sub>2</sub>O)(EtOH)(pfpac)<sub>2</sub>] <b>1</b> and [Mg(H<sub>2</sub>O)<sub>2</sub>(hfbac)<sub>2</sub>]·H<sub>2</sub>O <b>2 </b>phases are characterized by a number of methods. The structures of crystals of <b>1</b>, <b>2</b>, and [Mg(EtOH)<sub>2</sub>(hfbac)<sub>2</sub>] <b>3 </b>are determined by the single crystal X-ray diffraction analysis. Magnesium atoms have a distorted octahedral environment, and neutral ligands are in the <i>trans</i>-position. Molecules are involved in systems of OH⋯O<sub>dik</sub> hydrogen bonds, forming layers (<b>2</b>) or chains (<b>1</b>, <b>3</b>). A relative evaluation shows that <b>2</b> is more volatile than <b>1</b>. Structures of molecules and packing characters are compared with those of a series of related β-diketonate complexes. The effect of an increase in the ligand perfluoroalkyl chain (L = tfac, trifluoroacetylacetonate ion), including isoformular [Mg(H<sub>2</sub>O)<sub>2</sub>(L)<sub>2</sub>]·H<sub>2</sub>O, is shown.</p>\",\"PeriodicalId\":668,\"journal\":{\"name\":\"Journal of Structural Chemistry\",\"volume\":\"65 11\",\"pages\":\"2260 - 2271\"},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2024-12-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Structural Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0022476624110131\",\"RegionNum\":4,\"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":"Journal of Structural Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S0022476624110131","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
Synthesis, Structure, and Properties of Asymmetric Fluorinated Magnesium β-Diketonate Complexes
New complexes of magnesium with asymmetric fluorinated β-diketones are synthesized: pentafluoropropionyl (Hpfpac, 6,6,6,5,5-pentafluorohexane-2,4-dione) and heptafluorobutyrylacetone (Hhfbac, 7,7,7,6,6,5,5-heptafluoroheptane-2,4-dione). The [Mg(H2O)(EtOH)(pfpac)2] 1 and [Mg(H2O)2(hfbac)2]·H2O 2 phases are characterized by a number of methods. The structures of crystals of 1, 2, and [Mg(EtOH)2(hfbac)2] 3 are determined by the single crystal X-ray diffraction analysis. Magnesium atoms have a distorted octahedral environment, and neutral ligands are in the trans-position. Molecules are involved in systems of OH⋯Odik hydrogen bonds, forming layers (2) or chains (1, 3). A relative evaluation shows that 2 is more volatile than 1. Structures of molecules and packing characters are compared with those of a series of related β-diketonate complexes. The effect of an increase in the ligand perfluoroalkyl chain (L = tfac, trifluoroacetylacetonate ion), including isoformular [Mg(H2O)2(L)2]·H2O, is shown.
期刊介绍：
Journal is an interdisciplinary publication covering all aspects of structural chemistry, including the theory of molecular structure and chemical bond; the use of physical methods to study the electronic and spatial structure of chemical species; structural features of liquids, solutions, surfaces, supramolecular systems, nano- and solid materials; and the crystal structure of solids.
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