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Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
Tetraaqua(4,4'-dimethyl-2,2'-bipyridine-κ2N,N')nickel(II) sulfate monohydrate: a simple molecule with an extremely
Sebastián Suarez1, Fabio Doctorovich, Miguel Angel Harvey
1Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.
Abstract:
The title ionic compound, [Ni(C12H12N2)(H2O)4]SO4·H2O, is composed of an Ni(II) cation coordinated by a chelating 4,4'-dimethyl-2,2'-bipyridine ligand via its two N atoms [mean Ni-N = 2.056 (2) Å] and by four aqua ligands [mean Ni-O = 2.073 (9) Å], the net charge being balanced by an external sulfate anion. The whole structure is stabilized by a solvent water molecule. Even though the individual constituents are rather featureless, they generate an extremely complex supramolecular structure consisting of a central hydrogen-bonded two-dimensional hydrophilic nucleus made up of complex cations, sulfate anions and coordinated and solvent water molecules, with pendant hydrophobic 4,4'-dimethyl-2,2'-bipyridine ligands which interact laterally with their neighbours via π-π interactions. The structure is compared with closely related analogues in the literature.
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