Abstract
Some new complexes of NiL(PR3) (where L =
(E)-1-(2-amino-5-nitrophenyl)iminio-methylnaphthal ene-2-olate
(L-1), (E)-1-(2-hydroxiphenyl)iminio-methylnaphthalene-2-olate
(L-2), R = Bu and Ph) containing tridentate ONN and ONO Schiff bases
were synthesized and characterized by IR, UV-Vis, H-1-NMR spectroscopy
and elemental analysis. The geometry of NiL1(PBu3) and
NiL2(PBu3) complexes were determined by X-ray crystallography. It
was indicated that the complexes have a square planar structure and four
coordinates in the solid state. Theoretical calculations were also
performed to optimize the structures of the ligands and complexes in the
gas phase and ethanol solvent, separately to confirm the structures
proposed by X-ray crystallography. In addition, UV-Visible and IR
spectra of the complexes were calculated and compared with the
corresponding experimental spectra to complete the experimental
structural identification. (c) 2015 Elsevier B.V. All rights reserved.
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