Palladium is arguably the most versatile and most widely applied catalytic metal in the field of fine chemicals due to its high selectivity and activity. Palladium catalyst offers an abundance of possibilities of carbon-carbon bond formation in organic synthesis. In this research, three different Schiff base ligands have been prepared by condensation reaction between appropriate aldehyde or ket...

Metal complexes, ML2X2, where M is Mn(II), Co(II) or Cu(II), X = (NO3 –or Cl–), and L is the Schiff base formed by condensation of 2-thiophenecarboxaldehyde with phenyl hydrazine have been prepared and characterized by elemental analysis, magnetic and spectroscopic measurements (infrared, Raman, X-ray powder diffraction and scanning electron microscopy). Elemental analysis of the chelates sugge...

Schiff-base ligands are potential anti-cancer, anti-bacterial and anti-viral agents and this activity tends to increase in metal(II) Schiff-base complexes. Some oxindole-Schiff base copper(II) complexes have shown potential antitumor activity towards deferent cells, inducing apoptosis in a process modulated by the ligand. Here, six novel copper(II) complexes with schiff base ligands were isolat...

In the title compound, [Cu(C(2)H(3)N)(2)(C(22)H(28)N(2)O(6))]ClO(4), the Cu atom is coordinated by two N atoms from one bidentate Schiff base ligand and two N atoms from two acetonitrile groups. The Cu atom adopts a tetra-hedral geometry. The Cu-N(ligand) distances are 2.076 (3) and 2.089 (3) Å, and the Cu-N(acetonitrile) distances are 1.964 (4) and 1.975 (4) Å.

In the title complex, [Cu(C(17)H(15)NO(5))(C(12)H(8)N(2))]·2H(2)O, the central Cu(II) ion is five-coordinate, bound to one N atom and two O atoms from the Schiff base ligand and by two N atoms from a 1,10-phenanthroline ligand in a distorted square-pyramidal configuration. In the crystal, inter-molecular O-H⋯O and C-H⋯O hydrogen bonds form a two-dimensional network parallel to (001).

In the mononuclear title complex, [Ni(C(14)H(19)N(2)O(3))(NCS)], the nickel(II) atom is four-coordinated in a square-planar geometry by the O and N atoms of the tridentate Schiff base ligand and by the N atom of a thio-cyanate ligand. The crystal structure is stabilized by inter-molecular C-H⋯S and C-H⋯O hydrogen bonds, forming a three-dimensional network.

The title compound, [Cu(C(14)H(13)N(2)O(2))(N(3))], is a monomeric neutral complex with one unsymmetrical 6-meth-oxy-2-(2-pyridylmethyl-imino-meth-yl)phenolate Schiff base ligand and one azide ligand. The mol-ecules are connected by a combination of two π-π inter-actions [centroid-centroid distances 3.359 (3) and 3.378 (2) Å] and one C-H⋯N hydrogen bond into a two-dimensional supra-molecular ne...

In the title compound, [Cu(C(17)H(15)NO(3))(C(3)H(4)N(2))], the Cu(II) atom is four-coordinated by two O atoms and the N atom of the tridentate Schiff base ligand, and one N atom from the imidazole ligand in a distorted square-planar geometry. In the crystal structure, mol-ecules are linked into dimers by inter-molecular N-H⋯O hydrogen bonds.

The title compound, [Zn(C(19)H(13)N(3)O(2))], has been synthesized by the reaction of Zn(ClO(4))(2)·6H(2)O and the tetra-dentate Schiff base ligand 2,2'-[pyridine-3,4-diylbis(nitrilo-methyl-idyne)]diphenol (L). The coordination geometry of the Zn(II) ion is slightly distorted square-planar, formed by two N atoms and two O atoms from the L ligand.

In the title complex, [Cu(C(16)H(15)NO(3))(C(10)H(8)N(2))]·3H(2)O, the Cu(II) atom is five coordinated by O,N,O'-donor atoms of the Schiff base ligand and by two N atoms of the 2,2'-bipyridine ligand in a distorted square-pyramidal geometry. In the crystal, mol-ecules are linked into a two-dimensional network parallel to (011) by O-H⋯O hydrogen bonds.