Synthesis and spectroscopic characterization of nickel(II) complexes of 1-benzotriazol-1-yl-[(p-X-phenyl)hydrazone]propan-2-one

Al‐Awadi, Nouria A.; Shuaib, Nadia M.; El‐Dissouky, Ali

doi:10.1016/j.saa.2005.09.024

Cited by 22 publications

(10 citation statements)

References 21 publications

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“…3 T 1g (P). These bands clarified that the complexes are tetragonally distorted octahedral (figure 2a) [32]. The magnetic moment values of the solid nickel(II) complexes at room temperature were 3.14, 2.82 and 2.92 B.M., respectively (table 5), in the normal range for six-coordinate nickel(II).…”

Section: Electronic Absorption Spectra and Magnetismmentioning

confidence: 87%

Synthesis and characterization of a hydrazone ligand containing antipyrine and its transition metal complexes

Fouda

Abd-Elzaher

Shakdofa

et al. 2008

Journal of Coordination Chemistry

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The coordination chemistry of N 0 -((1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)methylene)-2-hydroxybenzohydrazide with copper(II), nickel(II), cobalt(II), manganese(II), zinc(II), palladium(II), iron(III), ruthenium(III), uranyl(VI), and titanium(IV) has been studied. The ligand and its complexes was characterized by elemental and thermal analyses, magnetic moments and conductivity measurements as well as spectroscopic techniques such as infrared, mass spectra, nuclear magnetic resonance, electron spin resonance and electronic absorption spectra. The spectral data showed that the ligand is monobasic tridentate coordinated via the enolic carbonyl oxygen of the hydrazide moiety, azomethine nitrogen and pyrazolone oxygen atoms.

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Section: Electronic Absorption Spectra and Magnetismmentioning

confidence: 87%

Synthesis and characterization of a hydrazone ligand containing antipyrine and its transition metal complexes

Fouda

Abd-Elzaher

Shakdofa

et al. 2008

Journal of Coordination Chemistry

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“…3 T 1g (P) transition and charge transfer bands. These bands suggest a tetragonally distorted octahedral geometry around nickel(II) ions [36]. In addition, a weaker band at 740 nm was noticed in the spectra of complex (6) assigned to 3 A 2g (F) ?…”

Section: Electronic Absorption Spectra and Magnetismmentioning

confidence: 94%

“…In addition, a weaker band at 740 nm was noticed in the spectra of complex (6) assigned to 3 A 2g (F) ? 1 E g (D) and 1 E g (G) spin-forbidden transitions [36]. The magnetic moment values of the solid nickel(II) complexes (5) and (6) at room temperature were 3.13 and 3 BM (Table 5).…”

Section: Electronic Absorption Spectra and Magnetismmentioning

confidence: 97%

Synthesis and characterization of transition metal complexes of N′-[(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)methylene]thiophene-2-carbohydrazide

Fouda

Abd-Elzaher

Shakdofa

et al. 2007

Transition Met Chem

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A hydrazone ligand (HL) containing the thiophene moiety has been prepared via condensation of thiophene-2-carbohydrazide with 1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carbaldehyde. The complexes of copper(II), nickel(II), cobalt(II), manganese(II), zinc(II), palladium(II), iron(III), ruthenium(III), uranyl(VI), and titanium(IV) with the ligand were prepared in good yield from the reaction of the ligand with the corresponding metal salts. The ligand and complexes were characterized using infrared, mass spectra, nuclear magnetic resonance, electronic absorption spectra, electron spin resonance, and magnetic moment measurements as well as elemental and thermal analyses. The results showed that the complexes are enolic by nature, whilst the ratio between the metal ion and the ligand depends on the acidity of the metallic ions and their oxidation numbers.

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“…However, the first two low energy bands observed in the region of 500-900 nm in all of the complexes are characteristic of nickel(II) in octahedral environment. The octahedral geometry of Ni(II) complexes is further supported by the value of ] 2 /] 1 ratio which lies in the region of 1.498-1.504 [26,37].…”

Section: Serial Number Complexmentioning

confidence: 80%

Synthesis, Characterization, and Structural Assessment of Ni(II) Complexes Derived from Bis(2-hydroxy-1-naphthaldehyde)succinoyldihydrazone

Chakrabarty

Ahmed

Lal

2015

International Journal of Inorganic Chemistry

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The monometallic nickel(II) complexes [Ni(H2nsh)(A)2]·nH2O (where A = water (H2O), n=0 (1); pyridine (py), n=2 (2); 2-picoline(2-pic), n=0 (3); 3-picoline(3-pic), n=2 (4); and 4-picoline(4-pic), n=0 (5)) and homobimetallic nickel(II) complexes [Ni2(nsh)(A)4]·nH2O (where A = water (H2O), n=1 (6); pyridine (py), n=4 (7); 2-picoline(2-pic), n=4 (8); 3-picoline(3-pic), n=4 (9); and 4-picoline(4-pic), n=4 (10), resp.) have been synthesized in methanol from bis(2-hydroxy-1-naphthaldehyde)succinoyldihydrazone (H4nsh). The complexes have been characterized by elemental analyses, molar conductance, magnetic moment, and electronic and IR and TGA/DTA spectroscopic studies. The monometallic complexes (1) to (5) are found to have octahedral stereochemistry while complexes (6) to (10) are found to have distorted octahedral stereochemistry in which one of the Ni(II) centres is present in N2O2 coordination sphere and another Ni(II) centre is bonded to it through phenolate oxygen atoms via oxo-bridging.

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Synthesis and spectroscopic characterization of nickel(II) complexes of 1-benzotriazol-1-yl-[(p-X-phenyl)hydrazone]propan-2-one

Cited by 22 publications

References 21 publications

Synthesis and characterization of a hydrazone ligand containing antipyrine and its transition metal complexes

Synthesis and characterization of a hydrazone ligand containing antipyrine and its transition metal complexes

Synthesis and characterization of transition metal complexes of N′-[(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)methylene]thiophene-2-carbohydrazide

Synthesis, Characterization, and Structural Assessment of Ni(II) Complexes Derived from Bis(2-hydroxy-1-naphthaldehyde)succinoyldihydrazone

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