&lt;b&gt;Synthesis, stereochemistry and antimicrobial activity of copper(II) and nickel(II) complexes of 4-phenylsemicarbazones&lt;/b&gt;

Nfor, Emmanuel N.; Esemu, Seraphine Nkie; Ayimele, Godfred A.; Eno, Ededet A.; Iniama, Grace E.; Offiong, Offiong E.

doi:10.4314/bcse.v25i3.68668

Cited by 13 publications

(9 citation statements)

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“…The presence of aromatic -C@N functionality is observed at $1526 cm À1 for both the ligands while it is shifted to lower frequency of $ 1518 cm À1 in all the compounds. This observation is not unusual as the two N donor atoms are coordinated to metal center [26,39,40]. The presence of perchlorate anions in 1-6 was revealed from the appearance of strong and medium absorption peaks at $1093 and 621 cm À1 respectively [36,39].…”

Section: Infrared Spectroscopymentioning

confidence: 87%

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Synthesis, characterization, cis-ligand substitution and catalytic alkane hydroxylation by mononuclear nickel(II) complexes stabilized with tetradentate tripodal ligands

Narulkar

Patil

Naik

et al. 2015

Inorganica Chimica Acta

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Section: Infrared Spectroscopymentioning

confidence: 87%

“…A wide range of nickel complexes are known to exhibit an antioxidant and antimicrobial activity against the several microorganisms [25,26]. The nickel complexes of 1,10-phenanthroline (phen) and 2,2 0 -bipyridine (bpy) derivatives have shown the binding and cleavage of DNA residues [27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, cis-ligand substitution and catalytic alkane hydroxylation by mononuclear nickel(II) complexes stabilized with tetradentate tripodal ligands

Narulkar

Patil

Naik

et al. 2015

Inorganica Chimica Acta

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“…The overall IR spectral evidence suggests that the ligand is bidentate in nature, coordinating through amide-oxygen and azomethine nitrogen with the formation of a five membered chelate ring. The spectra of all complexes exhibited intense broad bands at 3400-3450 cm -1 due to ν(OH) of the lattice water molecule(s) [27,31]. The presence of the lattice water molecules was also confirmed by elemental and thermogravimmetric analysis.…”

Section: Ir Spectramentioning

confidence: 97%

Synthesis, characterization and antibacterial properties of some transition metal complexes of (1H-pyrrol-2-yl)-isonicotinoylhydrazone

Mainsah¹,

Ndifon²,

Nfor³

et al. 2013

Bull. Chem. Soc. Eth.

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ABSTRACT.A new ligand, (1H-pyrrol-2-yl)isonicotinoylhydrazone (Pyr-inh) and its metal complexes have been synthesised and characterized by elemental analyses, IR, 1 H and 13 C-NMR, UV-Vis spectra, molar conductance, and thermogravimetry-differential thermal analysis (TG-DTA). From the results obtained, the structure of the complexes are of general formula [M(Pyr-inh)2Cl2].xH2O for M = Co(II), and Zn(II) and [M(Pyrinh)2(H2O)2]Cl2 for Cu(II). The thermal behaviour of these complexes showed the loss of lattice water in the first step followed by decomposition of the ligand in subsequent steps. The ligand and its transition metal complexes were studied for their in vitro antibacterial activity against ten pathogenic bacterial strains. The data obtained revealed that the ligand was active against Morganella morganii and Escherichia coli, the Co(II) complex active against Klebsiella oxytoca, the Cu(II) complex showed significant activity against five out of the ten bacterial strains and the Zn(II) complex was active against all the pathogenic bacterial strains investigated.

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“…A strong absorption characteristic of C=O stretching mode of an amide (amide I band) is observed at 1687 cm −1 while the δ(N-H) (amide II band) is observed at 1450 cm −1 [15]. The C=N stretching vibration of an azomethine group is attributed to an absorption at 1582 cm −1 [16] and the ν(N-N) band in APHC is assigned to the vibration at 1032 cm −1 [17]. Figure 4 illustrates the 1 H-NMR spectrum of APHC.…”

Section: Ft-ir Spectrummentioning

confidence: 99%

Synthesis, Spectral Characterization and Crystal Structure of 2-((3-Aminophenyl)(phenyl)methylene) hydrazinecarboxamide

Chan¹,

Ali

Khairuddean³

et al. 2013

JCPT

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A benzophenone substituted semicarbazone, 2-((3-aminophenyl)(phenyl)methylene)hydrazinecarboxamide (APHC) had been synthesized in good yield by the condensation of 3-aminobenzophenone and semicarbazide hydrochloride. The title compound was elucidated by elemental analysis (CHN), FTIR, 1 H and 13 C-NMR, 1 H-1 H COSY, TGA and single crystal X-ray diffraction. The compound crystallized in the orthorhombic crystal system with space group of Pccn, Z = 32, V = 10375.1 (2) Å 3 , and lattice constants a = 12.3855 (1) Å, b = 34.5746 (5) Å, c = 24.2283 (3) Å and γ = β = α = 90˚. The molecular view shows that APHC contains four molecules of each species in the asymmetric unit, with similar geometries. However, there is no intramolecular hydrogen bond found in the crystal structure of the synthesized compound. X-ray diffraction also reveals that the molecule of the semicarbazone exists as a Z isomer with respect to the C=N.

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<b>Synthesis, stereochemistry and antimicrobial activity of copper(II) and nickel(II) complexes of 4-phenylsemicarbazones</b>

Cited by 13 publications

References 0 publications

Synthesis, characterization, cis-ligand substitution and catalytic alkane hydroxylation by mononuclear nickel(II) complexes stabilized with tetradentate tripodal ligands

Synthesis, characterization, cis-ligand substitution and catalytic alkane hydroxylation by mononuclear nickel(II) complexes stabilized with tetradentate tripodal ligands

Synthesis, characterization and antibacterial properties of some transition metal complexes of (1H-pyrrol-2-yl)-isonicotinoylhydrazone

Synthesis, Spectral Characterization and Crystal Structure of 2-((3-Aminophenyl)(phenyl)methylene) hydrazinecarboxamide

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