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SECONDARY BONDING. PART 13. ARYL-TELLURIUM(IV) AND -IODINE(III) ACETATES AND TRIFLUOROACETATES. THE CRYSTAL AND MOLECULAR STRUCTURES OF BIS-(p-METHOXYPHENYL)TELLURIUM DIACETATE, μ-OXO-BIS HYDRATE, AND BENZENE

DOI: 10.1039/DT9840001709

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 1709 - 1716 (1984)

Update date:2022-08-11

Topics:

Authors:

Alcock, Nathaniel W.Alcock, Nathaniel W.

Harrison, W. DavidHarrison, W. David

Howes, ColinHowes, Colin

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Article abstract of DOI:10.1039/DT9840001709

The crystal and molecular structures of the title compounds have been determined from diffractometer data by the heavy-atom method, and their preparations are described.Crystals of (p-MeOC6H4)2Te(O2CMe)2 (1) are monoclinic, space group P21/c, with unit-cell dimensions a = 9.529(2), b = 11.984(2), c = 17.035(2) Angstroem, β = 101.70(2) deg, Z = 4, and for 3033 observed reflections (I/?(I) > 3.0), R = 0.022.Crystals of < 2O >2*H2O (2) are triclinic, space group <*>, with unit-cell dimensions a = 13.988(3), b= 14.287(3), c = 15.689(3) Angstroem, α = 80.40(2), β = 81.89(2), γ = 86.65(2) deg, Z = 2, and for 5290 observed reflections, R = 0.042.Crystals of PhI(O2CCF3)2 (3) are triclinic, spacegroup <*>, with unit-cell dimensions a = 9.787(4), b= 9.055(3), c = 7.674(3) Angstroem, α = 91.45(3), β = 99.78(3), γ = 89.21(3) deg, Z = 2, and for 2104 observed reflections, R = 0.037.All three compounds have pseudo-trigonal-bipyramidal primary geometry , and form secondary bonds to give pentagonal planar systems around Te and I, also with linear C-Te...O systems.In the light of these results, previously published tellurium nitrate structures are re-interpreted.

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