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Synthesis and crystal structure of the salt of the protonated oxythiamine cation with a platinum(IV) mixed-halide anion [H2OT][Pt(Cl/Br)6]

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Abstract

The interaction of oxythiamine bromide hydrobromide with H2PtCl6 in a hydrochloric acid solution gives the salt of protonated oxythiamine (oxythiamine is the 4-methyl-3-[(2′-methyl-4′-oxo-3′,4′-dihydropyrimidinyl-5′)methyl]-5-(2-hydroxyethyl)thiazolium cation,C12H16N3O2S+) with a platinum(IV) mixed-ligand anion, (C12H17Br2.32Cl3.68N3O2PtS) (I). The crystals of salt I are monoclinic: a = 12.888(3), b = 10.835(2), c =15.898(4) Å, β = 113.03(2)°, Z = 4, space group P21/c. They are built of the [H2OT]2+ cations and [Pt(Cl/Br)6]2− anions joined by hydrogen bonds and electrostatic and π-π stacking interactions. In the cation, the planar thiazolium and pyrimidine rings are bound through the methylene bridge, form a dihedral angle of 90.0°, and exist in the F conformation. The cations are combined into centrosymmetric cyclic dimers flanked on both sides by centrosymmetrically arranged octahedral anions to form short contacts.

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    A. S. Antsyshkina & G. G. Sadikov

  2. Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia

    V. D. Makhaev

Authors
  1. A. S. Antsyshkina
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  2. G. G. Sadikov
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  3. V. D. Makhaev
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Correspondence to A. S. Antsyshkina.

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Original Russian Text © A.S. Antsyshkina, G.G. Sadikov, V.D. Makhaev, 2008, published in Zhurnal Neorganicheskoi Khimii, 2008, Vol. 53, No. 11, pp. 1823–1831.

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Antsyshkina, A.S., Sadikov, G.G. & Makhaev, V.D. Synthesis and crystal structure of the salt of the protonated oxythiamine cation with a platinum(IV) mixed-halide anion [H2OT][Pt(Cl/Br)6]. Russ. J. Inorg. Chem. 53, 1703–1711 (2008). https://doi.org/10.1134/S0036023608110065

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  • DOI: https://doi.org/10.1134/S0036023608110065

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