A Nickel Complex with an Asymmetric N₂OS Schiff Base Ligand

In the structure of the title complex, {methyl 2-{2-[(2-hydroxyphenyl)methylenenitrilo]ethylamino}- 1-cyclopentenedithiocarboxylato-O, N, N', S}nickel(II), [Ni(C₁₆H₁₈N₂OS₂)], the Ni^II atom is coordinated by S, O and two N atoms in a nearly planar environment. The two inequivalent N atoms, coordinated in a cis manner, show virtually identical bond lengths and angles indicating that the NS ligand fragment coordinates as a Schiff base ligand, with the N atom behaving as an immine and the S atom having a strong thiolate character.

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