Journal of Structural Chemistry

, Volume 53, Issue 1, pp 189–192 | Cite as

Structure of tetra(3,5-dinitrobenzoate) bis(Piperidine) hexaaquanickel(II)—[Ni(OH2)6](PipH)2(3,5-DNB)4·2H2O dihydrate

  • É. B. MiminoshviliEmail author
  • K. É. Miminoshvili
  • T. N. Sakvarelidze
Brief Communications


It is found that M(AmH)2(3,5-DNB)4·8H2O compounds (where M(II) = Co, Ni; AmH is piperidine PipH = (C5H10NH2)+ or diethylamine DaH = (C4H10NH2)+ cations; 3,5-DNB = (C7H3N2O6) is the dinitrobenzoic acid anion) are isotypic. The structure of the Ni(PipH)2(3,5-DNB)4·8H2O single crystal is studied. The crystals have a monoclinic system, P21/n space group, Z = 2, a = 6.7694(3) Å, b = 16.0746(6) Å, c = 23.1250(9) Å, β = 97.794(1)°, V = 2493.1(2) Å3, T = 153 K. The final value R(F) = 0.0407 was obtained for 8191 independent reflections with I> 2σ(I). The structural units of the compound studied are as follows: [Ni(OH2)6]2+ complex hexaaquacation, two (PipH)+ cations, four (3,5-DNB) anions, and two molecules of water of crystallization with the structural formula [Ni(OH2)6](PipH)2(3,5-DNB)4·2H2O. Similar compounds of Ni(II) and Co(II) are isostructural.


complex compounds synthesis structural analysis transition metals piperidine dinitrobenzoate 


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Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  • É. B. Miminoshvili
    • 1
    Email author
  • K. É. Miminoshvili
    • 1
  • T. N. Sakvarelidze
    • 2
  1. 1.Georgian Technical UniversityTbilisiGeorgia
  2. 2.Institute of Physical and Organic ChemistryTbilisiGeorgia

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