| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1336792 | Polyhedron | 2013 | 9 Pages |
Four square planar nickel(II) complexes, [Ni(L1)2] (1), [Ni(L2)2] (2), [Ni(L3)(NHEt2)] (3) and [Ni(han)2] (4), where HL1 = 1-(3-hydroxypropyliminomethyl)naphthalene-2-ol, HL2 = 1-(5-hydroxy-3-oxapentyliminomethyl)naphthalene-2-ol, H2L3 = 2-(2-hydroxy-3-methoxybenzylideneamino)phenol and Hhan = 1-hydroxy-2-acetonaphthone, have been prepared and characterized by elemental analyses, IR and UV–Vis spectroscopy and single crystal X-ray diffraction studies. The potential tridentate ONO-donor ligand HL1 and potential tetradentate ONOO-donor ligand HL2 coordinate the nickel(II) only through the amine N and phenolic O to form complexes 1 and 2 respectively, i.e. the ligands act as pendant ligands. On the other hand, the potential tetradentate ONOO-donor Schiff base H2L3 coordinates the nickel(II) only through the amine N atom and two phenolic O atoms to form complex 3, i.e. it also acts as pendant ligand. Complex 4 is formed by the reaction of nickel(II) with 1-hydroxy-2-acetonaphthone. H-bonding, C–H⋯π and π⋯π interactions form supra-molecular assembly.
Graphical abstractFour square planar nickel(II) complexes have been synthesized and characterized. A potential tridentate and two potential tetradentate Schiff bases are behaving as pendant ligands. H-bonding, C–H⋯π and π⋯π interactions form supramolecular assembly of the molecular building blocks.Figure optionsDownload full-size imageDownload as PowerPoint slide
