The reactions of Me₂AsS₂Na·2H₂O and Me₂As(S)-S-AsMe₂ with Cu(II) and Tl(III): Reaction products and probable mechanisms

Article type: Research Article

Authors: Ioannou, Panayiotis V.

Affiliations: Department of Chemistry, University of Patras, Patras, Greece

Note: [] Corresponding author: Panayiotis V. Ioannou, Department of Chemistry, University of Patras, 26504 Patras, Greece. Fax: +30 2610 997118; E-mail: [email protected]

Abstract: The reaction of Me2AsS2Na·2H2O with CuCl2·2H2O and Cu(AcO)2·H2O gave the complex Me2AsS2Cu but with Tl(AcO)3 gave (Me2AsS2)3Tl, while the reaction of Bunsen's cacodyl disulfide, Me2As(S)-S-AsMe2, with Cu(AcO)2·H2O and Tl(AcO)3 gave Me2AsS2Cu and Me2AsS2Tl. Identification of the by-products by TLC and 1H NMR lead to probable mechanisms for these reactions postulating two novel radicals: Me2As(S)-S• and (Me2As = S)•.

Keywords: Copper(II), thallium(III), dimethyldithioarsinates, reductions

DOI: 10.3233/MGC-140137

Journal: Main Group Chemistry, vol. 13, no. 3, pp. 243-250, 2014