Synthesis, Structure, and Properties of Asymmetric Fluorinated Magnesium β-Diketonate Complexes

IF 1.2 4区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Structural Chemistry Pub Date : 2024-12-02 DOI:10.1134/S0022476624110131

S. S. Krutskikh, D. V. Kochelakov, A. A. Nazarova, I. V. Korolkov, L. N. Zelenina, E. S. Vikulova

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引用次数: 0

Abstract

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⋯O_dik 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.

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来源期刊

Journal of Structural Chemistry 化学-无机化学与核化学

CiteScore

1.60

自引率

12.50%

发文量

142

审稿时长

8.3 months

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.