• Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/123/01/0055-0061

    • Keywords

       

      Piperazine; piperazinediium; rehydration; crystal structure; thiosulfate chain.

    • Abstract

       

      Aqueous reaction of ammonium thiosulfate with piperazine (pip) results in the formation of the title compound (pipH2)[S2O3]$\cdot$H2O 1 (pipH2 = piperazinediium) in good yield. 1 was characterized by elemental analysis, IR, Raman andNMRspectra, X-ray powder pattern and its structure was determined. On heating at 100°C, 1 transforms to anhydrous piperazinediium thiosulfate 2, which can be rehydrated to the monohydrate on exposure tomoisture. The structure of 1 consists of two crystallographically independent piperazinediium (pipH2)2+ cations located on inversion centers, a thiosulfate anion and a lattice water. The organic cations, thiosulfate anion and lattice water are linked by six varieties of hydrogen bond namely O-H$\cdots$O, O-H$\cdots$S, N-H$\cdots$O, N-H$\cdots$S, C-H$\cdots$O and C-H$\cdots$S, leading to the formation of alternating layers of (pipH2)2+ cations and water linked thiosulfate chains. A comparative study of several compounds charge balanced by the piperazinediium cation is described.

    • Author Affiliations

       

      Bikshandarkoil R Srinivasan1 Ashish R Naik1 Sunder N Dhuri1 Christian Näther2 Wolfgang Bensch2

      1. Department of Chemistry, Goa University, Goa 403 206, India
      2. Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Straẞe 2, D-24118 Kiel, Germany
    • Dates

       
    • Supplementary Material

       
  • Journal of Chemical Sciences | News

© 2021-2022 Indian Academy of Sciences, Bengaluru.