Synthesis, characterization and biological studies of some Co(II), Ni(II) and Cu(II) complexes derived from indole-3-carboxaldehyde and glycylglycine as Schiff base ligand

Joseyphus, R. Selwin; Nair, M. Sivasankaran

doi:10.1016/j.arabjc.2010.05.001

Cited by 118 publications

(47 citation statements)

References 30 publications

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“…The measured magnetic moment at room temperature is 4.7 BM. The presence of spectral band and magnetic moment are consistent with those expected for tetrahedral coordinate [27,33].Moreover, the electronic absorption spectra of Co(II) complexes (2) and (3) display d-d transition bands at (650, 550) and (550) nm assigned to 4 A2g(F)→ 4 T1(P) , 4 T1g(F)→ 4 A2g(F) and 4 T1g(F)→ 4 A2g(F), respectively, suggesting an octahedral geometry around Co (II) ion for both complexes [6,27,[34][35][36][37][38]. The magnetic moment values of complexes (2,3) are within the reported range of 4.8-5.6 BM ( Table 3).…”

Section: Cobalt (Ii)chelatessupporting

confidence: 85%

Synthesis, Spectral Characterization, Thermal and In vitro Antimicrobial Studies for Novel Co(II) and Ni(II) Complexes of (N,N'-(1,2-Phenylene)Bis(2-Aminobenzamide)

El‐Boraey

El-Din²,

sakr

2019

JAC

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Novel metal complexes of Co(II) and Ni(II) have been prepared from reaction of their different salts with previously prepared ligand (L) namely (N,N'-(1,2-phenylene)bis(2-aminobenzamide). Synthesis ligand and its metal (II) complexes (1-5) were reported and characterized with the help of analytical and physiochemical analysis as elemental, IR spectra, thermal (TG/DTG), UV-Vis, magnetic susceptibility and molar conductance in DMF, On the view of the previous data and measurements, the structure and composition species behave as mononuclear and octahedral geometry has been proposed for all the complexes except for complex (1) adopted tetrahedral structure. Furthermore, the in vitro antibacterial Staphylococcus aureus (ATCC 25923) as Gram-positive strain, Escherichia coli (ATCC 25922) as Gram-negative strain and antifungal Candida albicans (ATCC 10231) have been studied for all samples using disc diffusion method against Ampicillin and Fluconazole as positive controls, respectively. The results show that complexation facilitates the activity of most studied metal complexes than the free ligand.

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Section: Cobalt (Ii)chelatessupporting

confidence: 85%

Synthesis, Spectral Characterization, Thermal and In vitro Antimicrobial Studies for Novel Co(II) and Ni(II) Complexes of (N,N'-(1,2-Phenylene)Bis(2-Aminobenzamide)

El‐Boraey

El-Din²,

sakr

2019

JAC

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“…A search through literature reveals that more have been posted on the studies of Schiff bases [18][19][20]. But, there is no research articles accounted on the synthesis of macrocyclic Schiff base first row transition metal complexes using benzalidene-curcuminyl-4-iminoantipyrine with 2,6-diaminopyridine [21][22][23][24][25]. Hence, the synthesis, characterization, bioloSynthesis, Characterization, Antimicrobial and Anticancer Activities of 14-Membered Macrocyclic Schiff Base Metal Complexes gical and cytotoxic activities of fully conjugated 14-membered macrocyclic pentaza transition metal Schiff base complexes derived by the condensation between benzalidene-curcuminyl-4-iminoantipyrine and 2,6-diaminopyridine is reported.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, Antimicrobial and Anticancer Activities of 14-Membered Macrocyclic Schiff Base Metal Complexes

Palanimurugan¹,

Kulandaisamy²

2018

Asian J. Chem.

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New cationic 14-membered macrocyclic Schiff base metal complexes have been synthesized by condensation of benzalidene-curcuminyl-4-iminoantipyrine and 2,6-diaminopyridine. Structural characterization of the compounds was done using elemental analysis, molar conductivity, magnetic susceptibility, Mass, SEM, XRD, 1 H NMR, UV-visible, IR and EPR spectra. X-ray diffraction patterns suggested that the size of Schiff base is reduced due to chelation by the metal ion. Different morphologies of synthesized compounds were identified by SEM images. Magnetic moment values, UV-visible and IR spectral studies confirms the square planar geometry of chelates. However [VOL]Cl2 exists in octahedral geometry. Electron spin resonance spectra parameters of [CuL]Cl2 and [VOL]Cl2 complexes were well coinciding with proposed geometries. The in vitro biocidal activities of the compounds were done against some bacterial and fungal strains by disc diffusion method. Anticancer activity of Schiff base and copper complex were carried out by MTT method which reveals that the inhibition against the growth of breast cancer cell line culture for chelate is higher than Schiff base.

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“…are tabulated ( Table 3). The electronic absorption spectrum of Co(II) complexes (5,6) exhibit only one band in the visible region at 640e630 assigned to 4 A 2 (F) / 4 T 1 (F) transition, which indicate tetrahedral geometry (Joseyphus & Nair, 2010;Nair, Arish, & Joseyphus, 2012). The magnetic susceptibility values are found to be 4.3e4.2 B.M.…”

Section: Cobalt(ii) Complexesmentioning

confidence: 94%

Physico-chemical study of new ruthenium(III), Pd(II) and Co(II) complexes, DNA binding of Pd(II) complex and biological applications

Aly

2018

Journal of Radiation Research and Applied Sciences

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New series of ruthenium(III), Pd(II) and Co(II) complexes of thiosemicarbazone ligands were prepared and characterized. It has been inferred method of bonding and general geometry of the complexes through FTIR, UVeVis, 1 H NMR spectroscopic studies, molar conductivity, magnetic, thermal and elemental analysis. On the basis of the above studies, it has suggested that the tetrahedral geometry for Ru(III), Co(II) complexes and square planar geometry for Pd(II)complex. Fluorescence binding of palladium complex(4) with DNA molecules showed no fluorescence quenching capability when compared with the complex(4) as a quencher. Also the ligand and complexes have been tested for their inhibitory effect on the growth of bacteria: Streptococcus pyogenes as Gram positive bacteria and Escherichia coli as Gram-negative bacteria. The activity data exhibit that most of the tested ligand and metal complexes reveal that remarkable antibacterial activity against these organisms.

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Synthesis, characterization and biological studies of some Co(II), Ni(II) and Cu(II) complexes derived from indole-3-carboxaldehyde and glycylglycine as Schiff base ligand

Cited by 118 publications

References 30 publications

Synthesis, Spectral Characterization, Thermal and In vitro Antimicrobial Studies for Novel Co(II) and Ni(II) Complexes of (N,N'-(1,2-Phenylene)Bis(2-Aminobenzamide)

Synthesis, Spectral Characterization, Thermal and In vitro Antimicrobial Studies for Novel Co(II) and Ni(II) Complexes of (N,N'-(1,2-Phenylene)Bis(2-Aminobenzamide)

Synthesis, Characterization, Antimicrobial and Anticancer Activities of 14-Membered Macrocyclic Schiff Base Metal Complexes

Physico-chemical study of new ruthenium(III), Pd(II) and Co(II) complexes, DNA binding of Pd(II) complex and biological applications

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