Synthesis and characterization of Mg(II), Mn(II), Zn(II) and Cd(II) complexes with a new heptaaza Schiff base pendant-armed macrocycle: X-ray crystal structure, NMR and computational study

Khanmohammadi, Hamid; Amani, Saeid; Lang, Heinrich; Rueffer, Tobias

doi:10.1016/j.ica.2006.07.082

Cited by 35 publications

(11 citation statements)

References 27 publications

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“…Also the 1 H-NMR spectroscopic data are given in text. The 1 H-NMR spectra of the ligands show singlets in the range 8.3-7.2 ppm and can be attributed to the aromatic ring protons [24]. Also, the singlets in the ranges 3.35-3.33 and 2.12-2.10 ppm ranges may be attributed to the N-CH 3 and C-CH 3 group protons, respectively [25,26].…”

Section: Equivalent Conductance Of Chloride Complexes [Comentioning

confidence: 92%

Syntheses, characterization, antimicrobial and genotoxic activities of new Schiff bases and their complexes

İspir

Toroğlu

Kayraldız

2008

Transition Met Chem

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Two new Schiff base ligands (L 1 , L 2 ) have been prepared from the reaction of 2,6-diacetylpyridine and 2-pyridinecarboxyaldehyde with 4-amino-2,3-dimethyl-1-phenyl-3-pyrozolin-5-on, and their Co(II), Cu(II), Ni(II), Mn(II), and Cr(III) metal complexes have also been prepared. The complexes are formed by coordination of N and O atoms of the ligands. Their structures were characterized by physico-chemical and spectroscopic methods. The analytical data shows that the metal to ligand ratio in the Schiff base complexes is 1:2. The Schiff base ligands and all complexes were evaluated for their in vitro antibacterial and antifungal activities by the disc diffusion method. In addition, the genotoxic properties of the ligands were studied.

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Section: Equivalent Conductance Of Chloride Complexes [Comentioning

confidence: 92%

Syntheses, characterization, antimicrobial and genotoxic activities of new Schiff bases and their complexes

İspir

Toroğlu

Kayraldız

2008

Transition Met Chem

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“…Copper complexes have medical uses in the treatment of numerous diseases including cancer [17][18] . Synthetic binuclear Ni(II) complexes are imperative to understand the mutual influences of the two metal on the electronic, magnetic and catalytic properties of such bimetallic cores [19][20][21][22][23] . Bimetallic Schiff base metal complexes have better biologically activity than the mononuclear Schiff base metal complexes, due to two biocompatible metal ions in the complexes.…”

Section: Research Articlementioning

confidence: 99%

Synthesis, Characterization and Biological Studies of Homobimetallic Schiff Base Cu(II) and Ni(II) Complexes

2013

Chem Sci Trans

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.4(OAc) (4) respectively. The four new homobimetallic complexes have been characterized by spectral techniques like elemental analysis, NMR, IR, UV Visible absorption, magnetic measurements, thermal, EPR, electrochemical studies and molar conductance. IR spectral data shows that the ligands are bidentate and the binding sites are azomethine nitrogen and free primary amine groups. Molar conductance measurements show that the complexes are electrolytes. EPR values and electronic spectral data suggest that it possesses square planar geometry. The Schiff base ligands and metal complexes were evaluated for antimicrobial activity against gram positive bacteria and gram negative bacteria. The ligands and its metal complexes were found to be biologically active. All the complexes show higher antimicrobial activity than the ligand and streptomycin.

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“…32 In this work, the first factor is the main factor. 2 (DMF)(CH 3 OH)) with the low MIC value (12 -25 μg/mL), 33 the MIC value of compound 2 is much higher. Based on these data, it is still not ready to correlate the nuclear and ligand numbers to the antibacterial activity.…”

Section: Antibacterial Activitiesmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9] Also, since the past few years the Schiff base complexes have become increasingly important as biochemical, analytical and antimicrobial reagents. 10 A great deal of work has been performed on the synthesis and characterization of transition metal compounds with these Schiff base ligands, not only due to their novel structural features caused by the chelating capability of these ligands but also in view of their pharmacological and antitumour activity.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Crystal Structure and Bioactivities of a Novel Propeller Shaped Manganese Complex with the Ligand N′‐Benzylidenesalicylhydrazide

Sun

Cheng

et al. 2009

Chin. J. Chem.

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A new propeller shaped mononuclear manganese(III) complex of the general formula: [MnL 3 (H 2 O)], where HL is N'-benzylidenesalicylhydrazide, was synthesized and characterized. The crystal structure of the title compound was characterized by X-ray single crystal diffractometry, which belongs to a triclinic system with space group P-1, cell dimensions of a＝11.6411 Å, b＝12.728 Å, c＝16.346 Å, α＝110.357°, β＝96.555°, γ＝108.996°, V＝2075.2 Å 3 , Z＝2 and D calc ＝1.265 g/cm 3 . In this complex, the metal ion is in an octahedral coordination environment, enforcing the stereochemistry of the ligands as a propeller configuration. Antibacterial screening data indicate that the complex has stronger antibacterial activity against the tested microorganisms than the ligand.

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Synthesis and characterization of Mg(II), Mn(II), Zn(II) and Cd(II) complexes with a new heptaaza Schiff base pendant-armed macrocycle: X-ray crystal structure, NMR and computational study

Cited by 35 publications

References 27 publications

Syntheses, characterization, antimicrobial and genotoxic activities of new Schiff bases and their complexes

Syntheses, characterization, antimicrobial and genotoxic activities of new Schiff bases and their complexes

Synthesis, Characterization and Biological Studies of Homobimetallic Schiff Base Cu(II) and Ni(II) Complexes

Synthesis, Crystal Structure and Bioactivities of a Novel Propeller Shaped Manganese Complex with the Ligand N′‐Benzylidenesalicylhydrazide

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