Synthesis, properties and supramolecular structure of piperazinediium thiosulfate monohydrate

Journal of Chemical Sciences

Wolfgang Bensch²  Ashish R Naik¹  Sunder N Dhuri¹  Bikshandarkoil R Srinivasan1¹  Christian Näther² 

[1] Department of Chemistry, Goa University, Goa 403 206, India$$;Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Straẞe 2, D-24118 Kiel, Germany$$

关键词: Piperazine;    piperazinediium;    rehydration;    crystal structure;    thiosulfate chain.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

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.

【 授权许可】

Unknown