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


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.


triphenylantimony pentaphenylantimony carboxylate solvate X-ray diffraction analysis 



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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