We depict the synthesis and characterization of copper(II) and zinc(II) coordination compounds of 4-(3"2,4"2-dimethoxybenzaldehydene)2-3-dimethyl-1-phenyl-3-pyrazolin-5-semicarbazone (1a), 4-(3"2,4"2-dimethoxybenzaldehydene)2-3-dimethyl-1-phenyl-3- pyrazolin-5-thiosemicarbazone (1b), 4-(3"2-hydroxy-4"2-nitrobenzaldehydene)2-3-dimeth yl-1-phenyl-3-pyrazolin-5-semicarbazone (1c) and 4-(3"2-hydroxy-4"2-nitrobenzal dehydene)2-3-dimethyl-1-phenyl-3-pyrazolin-5-thiosemicarbazone (1d). All the remote compounds have the general composition [ML2] (M=Cu(II) and Zn(II); L=Schiff base (1a-1d). All the complexes were characterized by elemental analysis, molar conductivity, IR, 1HNMR., UV-Vis., ESI-Mass, magnetic susceptibility measurements, cyclic voltammetric measurements, and EPR spectral studies. It has been originated that the Schiff bases with Cu(II) and Zn(II) ions form mononuclear complexes on 1:2 (metal:ligand) stoichiometry. Distorted octahedral environment is suggested for the metal complexes. The conductivity data confirm the non-electrolytic nature.
Related Content
Novel metal based anti-tuberculosis agent: Synthesis, characterization, catalytic and pharmacological activities of copper complexes
Copper complexes of molecular formulae, [CuL1(OAc)], [CuL2(H2O)], [CuL3(H2O)], [CuL4(H2O)], [CuL5(H2O)] where L1–L5 represents Schiff base ligands [by the condensation of 3-hydroxyflavone with 4-aminoantipyrine (L1)/o-aminophenol (L2)/o-aminobenzoic acid (L3)/o-aminothiazole (L4)/thiosemicarbaz...


Exploring the DNA binding mode of transition metal based biologically active compounds
Few novel 4-aminoantipyrine derived Schiff bases and their metal complexes were synthesized and characterized. Their structural features and other properties were deduced from the elemental analysis, magnetic susceptibility and molar conductivity as well as from mass, IR, UV-Vis,H-NMR and EPR spe...
A novel bioactive tyramine derived Schiff base and its transition metal complexes as selective DNA binding agents
A novel tyramine derived Schiff base, 3-4-dimethoxybenzylidene-4-aminoantipyrinyl-4-aminoethylphenol(L) and a series of its transition metal complexes of the type, ML2Cl2 where, M=Cu(II), Ni(II), Co(II) and Zn(II) have been designed and synthesized. Their structural features and other properties ...


Γ -Irradiation and Characterization of Synthesized Methoxybenzylpyrimidine Formimidate Schiff-base and Some Metal-Complex Derivatives
A Schiff-base, I, was prepared by the condensation reaction between the amine trimethoprim and the aldehyde triethyl orthoformate in 1:1 molar ratio. The metal complexes of Cu, Znand Lawere derived from the ligand I. Based on the elemental analysis and the IR, UV- Visible,H NMR and MS spectra ana...
Spectral, biological screening of metal chelates of chalcone based Schiff bases of N-(3-aminopropyl) imidazole
Tridentate chelate complexes of Co(II), Ni(II), Cu(II) and Zn(II) have been synthesized from the chalcone based ligands 2-[1-(3-(1H-imidazol-1-yl)propylimino)-3-(phenylallyl)]phenol(HL1), 2-[1-(3-(1H-imidazol-1-yl)propylimino)-3-(p-tolylallyl]phenol(HL2), 2-[1-(3-(1H-imidazol-1-yl)propylimino)-3-...

Spectroscopic characterization and biological activity of Zn(II), Cd(II), Sn(II) and Pb(II) complexes with Schiff base derived from Pyrrole-2-carboxaldehyde and 2-amino phenol
A new Schiff base 2-Aminophenol-pyrrole-2- carboxaldehyde and its Zn(II), Cd(II), Sn(II) & Pb(II) complexes have been synthesized and characterized by various physicochemical studies. Spectral studies(IR and 1H NMR) indicates deprotonation and coordination of phenolic oxygen along with binding of...
Transition metal complexes of a new hexadentate macroacyclic N2O4-donor Schiff base: Inhibitory activity against bacteria and fungi
A new hexadentate macroacyclic N2O4 - donor ligand, glyoxal bis(N-nitroso phenylglycine) (gbnp), has been designed and structurally characterized. Manganese(II), cobalt(II), nickel(II), copper(II) and zinc(II) complexes of gbnp have been prepared and characterized by elemental analyses, molar con...

Effect of Ligand Substitution on DNA Binding Ability of Two New Square Planar Copper(II)-Schiff base Complexes
Two terdentate NNO donor Schiff base ligands CH3C(OH)=CHC(CH3)=NCH2C5H4N [HL1] and C6H5C(OH)=CHC(CH3)=NCH2C5H4N [HL2] were used to synthesize two mononuclear square planar copper(II) complexes, [CuL1(CF3COO)] (1) and [CuL2(CF3COO)] . The complexes were characterized by elemental analyses, FT-IR, ...
Nano-sized, quaternary titanium(IV) metal-organic frameworks with multidentate ligands
Some mononuclear nano-sized, quaternary titanium(IV) complexes having the general formula [Ti(acac)(OOCR)2(SB)] (where Hacac=acetylacetone, R=C15H31 or C17H35, HSB=Schiff bases) have been synthesized using different multidentate ligands. These were characterized by elemental analyses, molecular w...

Diperoxo Complexes of Vanadium(V) Containing Mannich Base Ligands
The vanadium(V) peroxo complexes containing Mannich base ligands having composition Na[VO(O2)2(L-L)]·H2O [where L-L=morpholinobenzyl acetamide (MBA), piperidinobenzyl acetamide (PBA), morpholinobenzyl benzamide (MBB), piperidinobenzyl benzamide (PBB), morpholinomethyl benzamide (MMB), piperidino...