Nura Suleiman Gwaram - 2,6-Diamino-4-oxo-3,4-dihydropyrimidin- 1-ium chloride dihydrate

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  Publication Details (including relevant citation   information):

  Nura Suleiman Gwaram, Hamid Khaledi* and Hapipah
  Mohd Ali
  Department of Chemistry, University of Malaya, 50603 Kuala   Lumpur, Malaysia
  Correspondence e-mail:
  Received 1 August 2010; accepted 5 August 2010
  Key indicators: single-crystal X-ray study; T = 100 K; mean (C–C)   = 0.002 A°
  R factor = 0.024; wR factor = 0.066; data-to-parameter ratio =   10.7.


  In the crystal structure of the title compound, C4H7N4O+-
  Cl2H2O, adjacent cations are connected to one another
  through N—H O hydrogen bonds, forming infinite chains
  along the b axis. These chains are further hydrogen bonded to
  the chloride anions and water molecules, resulting in a   threedimensional
  network. The pyrimidine rings of adjacent
  molecules are arranged in an antiparallel manner above each
  other with centroid–centroid distances of 3.435 (1) A ° ,   indicative
  of – interactions.
  Related literature
  For related structures, see: Wijaya et al. (2004); Muthiah et   al.

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