Diaquabis(4-amino-3-methyl-4,5-dihydro-1H-1,2,4-triazole-5-thione)nickel(II) Nitrate: a Sulfur-Nitrogen Chelate

The title compound, [Ni(C₃H₆N₄S)₂(H₂O)₂](NO₃)₂, is an octahedral complex of nickel(II) in which two triazole ligands are coordinated in a bidentate fashion through the amine and thione substituents. The coordination sphere has the two S atoms trans with respect to one another, while the N atoms and two water molecules are ligated in cis positions. The Ni-S and Ni-N bond lengths in the chelate are consistent with those in similar octahedral nickel complexes. The geometry of the complexed triazole moiety is not substantially different from that of the free molecule.

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