Magnetic properties of Ni-complexes in a hydrazone structure

Mosiniewicz-Szablewska, E.; Ślawska‐Waniewska, A.; Świątek, K.; Nedelko, N.; Gołębiewski, Michał

doi:10.1002/pssa.200306389

Cited by 3 publications

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“…However, there are very few reports in the literature about the study of this d 8 ion at room temperature. The g value is isotropic and close to 2.2 [23][24][25]. EPR spectra of powdered samples of abovementioned complexes were obtained at room temperature.…”

Section: Magnetic Measurementsmentioning

confidence: 97%

Mixed-Ligand Nickel(II) Complexes Containing Sulfathiazole and Cephalosporin Antibiotics: Synthesis, Characterization, and Antibacterial Activity

Anacona

López

2012

International Journal of Inorganic Chemistry

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Nickel(II) reacts with cephalosporins plus sulfathiazole (Hstz) to form the following mixed-ligand complexes of general formulae [Ni(L)(stz)(H2O)x]n (L1,4, x=1; L2,3, x=0; L = monoanion of cefazolin HL1, cephalothin HL2, cefotaxime HL3, ceftriaxone HL4) and [Ni(L5)(stz)]Cl (cefepime L5), which were characterized by physicochemical and spectroscopic methods. Their spectra indicated that cephalosporins are acting as multidentate chelating agents, via the lactam carbonyl and carboxylate and N-azomoieties. The complexes are insoluble in water and common organic solvents but soluble in DMSO, where the [Ni(L5)(stz)]Cl complex is 1 : 1 electrolyte. They probably have polymeric structures. They have been screened for antibacterial activity, and the results are compared with the activity of commercial cephalosporins.

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Section: Magnetic Measurementsmentioning

confidence: 97%

Mixed-Ligand Nickel(II) Complexes Containing Sulfathiazole and Cephalosporin Antibiotics: Synthesis, Characterization, and Antibacterial Activity

Anacona

López

2012

International Journal of Inorganic Chemistry

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“…The enzymes need these groups for their activity to be more susceptible to deactivation by the central metal ions upon coordination. It has been reported that coordination helps to lower the metal ion polarity also known as Tweedy chelation theory (Ejidike, 2018;Mosiniewicz-Szablewska et al, 2003) of the central metal ions due to donating of its positive charge through the donor atoms. The reaction of coordination helps to increases the lipophilic character of the metal ions which help its permeation through the lipid layer of the membrane.…”

Section: Antimicrobial Activitymentioning

confidence: 99%

Synthesis, Characterization, Antimalarial and Antimicrobial activities of Mixed Ibuprofen-Pyrimethamine M(II) Complexes [M = Cd, Co, Zn, Mn]

Bamigboye

Ejidike²

2019

Natural and Applied Sciences Journal

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Mixed complexes of Ibuprofen-Pyrimethamine were synthesized using Cd(II) Co(II), Zn(II), and Mn(II). The mixed complexes were characterized based on some physicochemical and spectroscopic techniques such as infrared, elemental analysis, conductivity measurements, and magnetic moment. Based on the results obtained, the complexes were formulated as [M(L1)(L2)]Cl2, where M = metal ion, L1 = Pyrimethamine, L2 = Ibuprofen). The complexes were found to be non-electrolytes. The ligands act as bidentate towards the central metal ions with deprotonation occurring at the carboxylic group. The complexes were also analyzed by conductometric titration. Antimicrobial screening against the selected organisms: Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus substilis, Bacillus megaterium and Serratia marcescens for the complexes alongside the free ligands were investigated. The antimalarial study was investigated for the compounds against Plasmodium berghei (NK 65 strain). It was observed that the complexes showed significant potentials against the studied organisms.

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Synthesis, spectroscopic, and biological activities of two binuclear complexes [Cu(II)(1-phenylamidino-O-methylurea)₂(H₂O)]₂(Cl₂)₂ and [Cu(II)(1-phenylamidino-O-i-butylurea)tmen]₂(Cl₂)₂·2H₂O

Devi

Damayanti

et al. 2011

Journal of Coordination Chemistry

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Magnetic properties of Ni-complexes in a hydrazone structure

Cited by 3 publications

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Mixed-Ligand Nickel(II) Complexes Containing Sulfathiazole and Cephalosporin Antibiotics: Synthesis, Characterization, and Antibacterial Activity

Mixed-Ligand Nickel(II) Complexes Containing Sulfathiazole and Cephalosporin Antibiotics: Synthesis, Characterization, and Antibacterial Activity

Synthesis, Characterization, Antimalarial and Antimicrobial activities of Mixed Ibuprofen-Pyrimethamine M(II) Complexes [M = Cd, Co, Zn, Mn]

Synthesis, spectroscopic, and biological activities of two binuclear complexes [Cu(II)(1-phenylamidino-O-methylurea)₂(H₂O)]₂(Cl₂)₂ and [Cu(II)(1-phenylamidino-O-i-butylurea)tmen]₂(Cl₂)₂·2H₂O

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Magnetic properties of Ni-complexes in a hydrazone structure

Cited by 3 publications

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Mixed-Ligand Nickel(II) Complexes Containing Sulfathiazole and Cephalosporin Antibiotics: Synthesis, Characterization, and Antibacterial Activity

Mixed-Ligand Nickel(II) Complexes Containing Sulfathiazole and Cephalosporin Antibiotics: Synthesis, Characterization, and Antibacterial Activity

Synthesis, Characterization, Antimalarial and Antimicrobial activities of Mixed Ibuprofen-Pyrimethamine M(II) Complexes [M = Cd, Co, Zn, Mn]

Synthesis, spectroscopic, and biological activities of two binuclear complexes [Cu(II)(1-phenylamidino-O-methylurea)2(H2O)]2(Cl2)2 and [Cu(II)(1-phenylamidino-O-i-butylurea)tmen]2(Cl2)2·2H2O

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Synthesis, spectroscopic, and biological activities of two binuclear complexes [Cu(II)(1-phenylamidino-O-methylurea)₂(H₂O)]₂(Cl₂)₂ and [Cu(II)(1-phenylamidino-O-i-butylurea)tmen]₂(Cl₂)₂·2H₂O