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Russian Journal of Inorganic Chemistry

, Volume 64, Issue 10, pp 1229–1234 | Cite as

Tri- and Tetraphenylantimony 3,3,3-Trifluoropropanates: Synthesis and Structure

  • V. V. SharutinEmail author
  • O. K. Sharutina
  • A. N. Efremov
  • E. V. Artem’eva
COORDINATION COMPOUNDS
  • 14 Downloads

Abstract

Triphenylantimony bis(3,3,3-trifluoropropanate) (I) to be converted into tetraphenylantimony 3,3,3-trifluoropropanate (II) after additional treatment with pentaphenylantimony has been synthesized by the reaction between triphenylantimony and 3,3,3-trifluoropropanoic acid (HL) in the presence of tert-butyl hydroperoxide. The hydrolysis of complex I leads to the formation of µ2-oxo-bis(3,3,3-trifluoropropanatotriphenylantimony) (III). Complex II has also been synthesized from HL and pentaphenylantimony. The solvate Ph4SbOC(O)CH2CF3 ⋅ HOC(O)CH2CF3 (IV) has been isolated from the reaction mixture at an acid excess (2 : 1 mol/mol). According to X-ray diffraction data, the Sb atoms in complexes IIIV have differently distorted trigonal bipyramidal coordination. The СSbO axial angles in complexes II and IV are 173.29(7)° and 178.06(11)°, respectively. In a centrosymmetric molecule of complex III (the inversion center is the bridging oxygen atom), the OSbO angles are 175.64(6)°. The Sb–O and Sb–С bond lengths are 2.255(2) and 2.109(2)–2.167(2) Å in II; 1.8169(3), 2.045(2) and 2.065(2)–2.403(3) Å in III; 2.319(3) and 2.110(4)–2.168(3) Å in IV. The Sb⋅⋅⋅O intramolecular distances with the carbonyl oxygen atom (3.414(3) Å (II), 3.232(4) Å (III), 3.233(4) Å (IV)) are ~0.3–0.5 Å smaller than the sum of the antimony and oxygen van der Waals radii.

Keywords:

triphenylantimony pentaphenylantimony carboxylate solvate X-ray diffraction analysis 

Notes

FUNDING

The National South Ural State Research University is grateful to the Ministry of Education and Science of the Russian Federation for financial support (grant no. 4.6151.2017/8.9).

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • V. V. Sharutin
    • 1
    Email author
  • O. K. Sharutina
    • 1
  • A. N. Efremov
    • 1
  • E. V. Artem’eva
    • 1
  1. 1.National South Ural State Research UniversityChelyabinskRussia

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