Crystal structure of cis-diaquabis(sulfapyridazinato) nickel(II)

  • É. B. MiminoshviliEmail author
  • L. A. Beridze
  • S. R. Zazashvili


We have previously found that ethazole and sulfadimethoxine (sulfanilamide representatives) do not coordinate to Mg(II), Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) metals, and they are outer-sphere anions in the complex compounds of these metals. This work presents the results of the structural study of yet another sulfanilamide representative: the [Ni(A)2(OH2)2] compound containing sulfapyridazine. Here A is the sulfapyridazine anion (C11H11N4O3S is 6-(p-aminobenzenesulfamido)-3-methoxypyridazine) coordinated by nitrogen atoms (N(1) and N(2)), thus functioning as a bidentate cyclic ligand. The symmetry and unit cell parameters are as follows: monoclinic, C2/c space group, a = 20.116(3) Å, b = 8.221(2) Å, c = 16.923(4) Å, β = 75.19(5)°, V = 2705.6(7) Å3, T = 293 K, and Z = 4. The final value of R = 0.048 was obtained for 1930 independent reflections with I > 2σ(I). The structure consists of complex molecules.


complex compounds structural analysism sulfanilamides sulfapyridazine 


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Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  • É. B. Miminoshvili
    • 1
    Email author
  • L. A. Beridze
    • 2
  • S. R. Zazashvili
    • 2
  1. 1.Georgian Technical UniversityTbilisiGeorgia
  2. 2.Tbilisi State Medical UniversityTbilisiGeorgia

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