Bis(4-aminopyridinium) hexaaquanickel(II) bis(sulfate)
Identifieur interne : 000244 ( Main/Exploration ); précédent : 000243; suivant : 000245Bis(4-aminopyridinium) hexaaquanickel(II) bis(sulfate)
Auteurs : Thameur Sahbani [Tunisie] ; Wajda Smirani Sta [Tunisie] ; Mohamed Rzaigui [Tunisie]Source :
- Acta Crystallographica Section E: Structure Reports Online [ 1600-5368 ] ; 2013.
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 π–π interactions between the pyridine rings, with a centroid–centroid distance of 3.754 (9) Å, provide additional stability to the crystal packing.
Url:
DOI: 10.1107/S1600536813032558
PubMed: 24526957
PubMed Central: 3914041
Affiliations:
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Le document en format XML
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<front><div type="abstract" xml:lang="en"><p>In the title compound, (C<sub>5</sub>
H<sub>7</sub>
N<sub>2</sub>
)<sub>2</sub>
[Ni(H<sub>2</sub>
O)<sub>6</sub>
](SO<sub>4</sub>
)<sub>2</sub>
, the Ni<sup>II</sup>
cation is located on an inversion centre and is coordinated by six aqua ligands in a slightly distorted octahedral coordination environment. The [Ni(H<sub>2</sub>
O)<sub>6</sub>
]<sup>2+</sup>
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 π–π interactions between the pyridine rings, with a centroid–centroid distance of 3.754 (9) Å, provide additional stability to the crystal packing.</p>
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