Acta Crystallographica Section E

Structure Reports Online

Volume 70, Part 1 (January 2014)


metal-organic compounds



wm2787 scheme

Acta Cryst. (2014). E70, m6    [ doi:10.1107/S1600536813032558 ]

Bis(4-amino­pyridinium) hexa­aqua­nickel(II) bis­(sulfate)

T. Sahbani, W. Smirani Sta and M. Rzaigui

Abstract: In the title compound, (C5H7N2)2[Ni(H2O)6](SO4)2, the NiII cation is located on an inversion centre and is coordinated by six aqua ligands in a slightly distorted octa­hedral coordination environment. The [Ni(H2O)6]2+ ions are connected through an extensive network of O-H...O hydrogen bonds to sulfate anions, leading to the formation of layers parallel to (001). The 4-amino­pyridinium cations are located between these layers and are connected to the anionic framework by N-H...O hydrogen bonds. Weak [pi]-[pi] inter­actions between the pyridine rings, with a centroid-centroid distance of 3.754 (9) Å, provide additional stability to the crystal packing.


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