(IUCr) Crystallography Journals Online

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Acta Cryst. (2009). E65, m625-m626 [ doi:10.1107/S1600536809016729 ]

catena-Poly[[tetraaquanickel(II)]-₃-benzene-1,3,5-tricarboxylato-3':1:2-⁴O¹:O³,O^3':O⁵-[tetraaquanickel(II)]-₂-benzene-1,3,5-tricarboxylato-2:3²O¹:O³-[tetraaquanickel(II)]]

S.-C. Hsu, P.-H. Chiang, C.-H. Chang and C.-H. Lin

Abstract: The microwave solvothermal reaction of nickel nitrate with trimesic acid provided the title compound, [Ni₃(BTC)₂(H₂O)₁₂]_n (BTC = benzene-1,3,5-tricarboxylate anion, C₉H₃O₆), which is a metal coordination polymer composed of one-dimensional zigzag chains. The crystal under investigation was ramecically twinned with an approximate twin domain ratio of 1:1. In the asymmetric unit, there are two types of Ni atoms. One of the NiO₆ groups (2 symmetry) is coordinated to only one carboxylate group and thus terminal, the other is bridging, forming the coordination polymer. The extended chains are connected by the organic BTC anions via ₂-linkages. O-HO hydrogen bonds and [pi] - [pi] interactions between the chains [centroid-centroid distance 3.58 (1) Å] induce the complex to mimic a three-dimensional structure.

Online 14 May 2009

catena-Poly[[tetraaquanickel(II)]-3-benzene-1,3,5-tricarboxylato-3':1:2-4O1:O3,O3':O5-[tetraaquanickel(II)]-2-benzene-1,3,5-tricarboxylato-2:32O1:O3-[tetraaquanickel(II)]]

S.-C. Hsu, P.-H. Chiang, C.-H. Chang and C.-H. Lin

catena-Poly[[tetraaquanickel(II)]-₃-benzene-1,3,5-tricarboxylato-3':1:2-⁴O¹:O³,O^3':O⁵-[tetraaquanickel(II)]-₂-benzene-1,3,5-tricarboxylato-2:3²O¹:O³-[tetraaquanickel(II)]]