A study of square-planar tellurium(II) complexes with thiourea type ligands

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Abstract

Four planar tellurium(II) complexes with thiourea type ligands have been characterized. Crystal structures for two of the complexes are reported. Te(tu)4(ClO4)2), |tu = thiourea| is triclinic, space group P1, a = 15.35, b = 11.97 c = 6.01 Å, α = 90.1 β = 91.0, γ = 108.0° and Z = 2; Te(dmtu)4Cl2 |dmtu = 1,3-dimethylthiourea| is monoclinic, space group P21/n, a = 13.70, b = 9.05, c = 10.91 Å,β = 101.6° and Z = 2. In both the complexes the tellurium is bonded to four sulphur atoms in a planar arrangement which is considerably distorted in the perchlorate but nearly regular in the chloride. In order to explain the structural and 125Te Mössbauer spectroscopy results, a bonding model involving lone-pairs with s- and p- character is proposed.

References (17)

  • B.M. Cheyne et al.

    Chem. Phys. Lett.

    (1972)
  • O. Foss et al.

    Acta Chem. Scand.

    (1959)
  • K. Fosheim et al.

    Acta Chem. Scand.

    (1965)
  • O. Foss et al.

    Acta Chem. Scand.

    (1961)
  • O. Foss et al.

    Acta Chem. Scand.

    (1966)
  • B.M. Cheyne et al.

    Canad. J. Chem.

    (1972)
  • B.M. Cheyne et al.

    Canad. J. Chem.

    (1974)
  • B.M. Cheyne et al.

    Canad. J. Chem.

    (1975)
There are more references available in the full text version of this article.

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