Abstract

A new mononuclear Schiff base octahedral Ni(II) complex of general formula [NiII(L)2] has been synthesized using a new NNO donor Schiff base ligand (HL = 2-[(piperidin-2-ylmethylimino)-methyl]-phenol). The title complex has been characterized by various physical measurements such as elemental analyses, FT-IR, 1H NMR and UV–Vis spectroscopic techniques. The molecular structure of the title complex was determined by single crystal X-ray diffraction technique. The title complex is a mononuclear bis-ligand complex showing distorted octahedral geometry around nickel (II). X-ray crystallography reveals that the complex exhibits extensive supramolecular interactions in the solid-state. Two types of non-covalent interactions namely, π–π and C–H···π interactions are found to govern final solid-state architecture in the complex. The contribution of each interaction to the formation of the self-assembly has been analyzed through Hirshfeld surface calculation which enables quantitative contributions to the crystal packing in a novel visual manner.

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