This study describes the effects of the substituents on electrochemical behavior and antioxidant activity of the three tetradentate Schiff bases, containing ethane-1,2- diamine, propane-1,3- diamine and butan-1,4- diamine as the amine part and salicylaldehyde, and corresponding Cd(II) complexes. Cyclic voltammograms of these compounds were recorded in dimethylsulfoxide and 0.1 M sodium perchlor...

Schiff base complexes of transition metals are of particular interest to inorganic chemists because of their structural, spectral and chemical properties, which are often strongly dependant on the nature of the ligand structure. Large number of metal (II) complexes with Schiff-base ligands has been extensively studied for their interesting structural specialties, applications and properties. Th...

A total of three new silicon (IV) complexes of Schiff base have been synthesized by the reaction of silicon tetrachloride with Schiff base ligands L1 (C16H16N2O2), L2 (C14H12N2O2) and L3 (C13H11NO2).The complexes obtained were characterized qualitatively and quantitatively by using micro-elemental analysis, FTIR spectroscopy, 1 H and 13 C NMR spectroscopy. From the spectral studies we could con...

The asymmetric unit of the title complex, [Cu(C(11)H(16)N(3)O)]ClO(4), consists of two Cu(II) ions coordinated by Schiff base ligands and two perchlorate anions. The Schiff base mol-ecules are linked to the Cu(II) atoms via three N atoms and one O atom, resulting in a square-planar geometry. Inter-molecular hydrogen bonds involving the NH groups as donors and O atoms of the perchlorate anions a...

The title Schiff base complex, [V(C(13)H(7)BrClNO(2))(CH(3)O)O(CH(3)OH)], features a vanadyl group, a tridentate Schiff base ligand, and coordinated methanol and methano-late ligands. The NO(5) donor set is based on a distorted octa-hedron. Helical supra-molecular chains along [010] are found in the crystal structure mediated by O-H⋯O hydrogen bonds formed between the coordinating methanol mol-...

The asymmetric unit of the title compound, [Ni(C(12)H(18)N(2)O(2))(2)](ClO(4))(2), consists of one-half of a centrosymmetric mononuclear Schiff base nickel(II) complex cation and one perchlorate anion. The Ni(II) ion, lying on the inversion center, is coordinated by two N atoms and two O atoms from two Schiff base ligands, forming a square-planar geometry. The crystal packing is stabilized by N...

New tin (IV) complexes of empirical formula, [Cl2 Me2 Sn(H2 L)1-3], where ((H2 L)1-3: Methyl-2- {[1-methyl-2-(2-hydroxy-3-methoxyphenyl)methylidynenitrilo]ethyl}amino-1-cyclopentenedithiocarboxylate [H2cd3OMesalMeen], Methyl-2-{[1-methyl-2-(2-hydroxy-4-methoxyphenyl)methylidynenitrilo]ethyl}amino-1-cyclopentenedithiocar-boxylate, [H2 cd4OMesalMeen], Methyl-2-{[1-methyl-2-(2-hydroxy-5-methoxyphe...

In the title Schiff base complex, [Zn(C(14)H(9)Br(2)FNO)(2)], the Zn(II) atom is located on a twofold rotation axis and is coordinated by two O and two N atoms from two symmetry-related bidentate Schiff base ligands in a compressed tetrahedral geometry. The bond lengths and bond angles are within normal ranges. The dihedral angle between the least-squares planes of the aromatic rings within eac...