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    • Keywords


      Cadmium dithiophosphinato complexes; Thio-Phosphorus Complexes; Dithiophosphinic acid; Phosphinodithioic acid; X-ray Structure.

    • Abstract


      New cadmium complexes of 4-methoxyphenyl dithiophosphinic acids, H3CO-C6H4-(R)PS2H were prepared. The five dithiophosphinato ligands (L) involved were of the general structure H3CO-C6H4-(R)PS2−with R= 3-methylbutyl, (L1); n-butyl, (L2); 2-methylpropyl, (L3); 1-methylpropyl, (L4) and 2-propyl, (L5).To the best of our knowledge, this is the first report on the preparation and characterization of the n-butyl-derivative. The acid forms of the ligands were obtained by treatment of the Lawesson reagent, (LR) [2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide] with the corresponding Grignard reagent in dry diethylether. The acids formed were transformed into easily crystallizable ammonium salts (NH4L) for purification. These salts were treated with CdCl2 in ethanol at room temperature to produce the bis-dithiophosphinato cadmium complexes ([Cd(L)2]2) exclusively. The structures of the complexes were elucidated by elemental analysis, MS, FTIR and Raman spectroscopy techniques as well as 1H-, 13C- and 31P- NMR. The crystal structures of [Cd(L1)2]2 and [Cd(L2)2]2 were also studied as examples. X-ray studies confirmed the nonplanar, four-coordination geometry of the complexes and indicate that electron delocalization prevails in the PS$_{−}^{2}$ moiety of the dithiophosphinato groups.

    • Author Affiliations


      Ertuğrul Gazi̇ Sağlam1 Nurcan Acar2 Yasemi̇n Süzen3 Berline Mougang-Soumé4 Tuncer Hökelek5

      1. Department of Chemistry, Bozok University, 66900, Yozgat, Turkey
      2. Department of Chemistry, Ankara University, 06100 Tandoğan, Ankara, Turkey
      3. Department of Chemistry, Anadolu University, 26470 Yenibağlar, Eskişehir, Turkey
      4. Department of Chemistry, Université de Montréal, Montréal, Québec, Canada
      5. Department of Physics, Hacettepe University, 06800 Beytepe, Ankara, Turkey
    • Dates

  • Journal of Chemical Sciences | News

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