Interactions of N′-[1-(2-Hydroxyphenyl)ethylidene]Isonicotinohydrazide, a Hydrazone Schiff Base and Selected Lanthanides: Potentiometric and Spectral Studies

Varam, Yuimi; Rajkumari, Lonibala

doi:10.1007/s10953-016-0542-2

Cited by 5 publications

(2 citation statements)

References 78 publications

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“…The works on the ligation behaviour of several hydrazones towards transition metal and lanthanide ions are also reported in the literature [16][17][18][19][20][21][22][23][24]. In continuation, we report herein the synthesis and characterization of a series of Ln 3+ complexes of a hydrazone, octadecyl(N-salicylaldimine)hydrazone (ONsal).…”

Section: Introductionmentioning

confidence: 75%

Synthesis, Spectroscopy and Biological Activities of Some Trivalent Lanthanide Complexes of Octadecyl N-salicylaldimine (ONsal)

Meitei,

Sheikh,

Lonibala

2024

ajc

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A series of Ln(III) complexes of octadecyl N-salicylaldimine (ONsal) were synthesized and characterized by CHN analysis, magnetic moment, conductivity, thermoanalytical and spectroscopic methods. Elemental and thermal analysis data confirmed the formation of heptacoordinated [Ln(ONsal)2Cl2(H2O)]Cl complexes where Ln = Ce3+, Nd3+, Sm3+, Eu3+, Gd3+, Tb3+, Dy3+, Ho3+, which is further supported by the respective mass spectra. The ligand acts as a neutral bidentate species coordinating through azomethine nitrogen and phenolic O-atom. The linkage of one H2O molecule in all the complexes has been inferred from the thermal analysis. All the Ln(III) complexes are paramagnetic in nature and act as 2:1 electrolyte in 0.002 M DMF at 25 ºC. The complexes of Sm(III), Eu(III) and Tb(III) display luminescent properties. The powder XRD patterns of Nd(III) and Dy(III) complexes could be successfully indexed for monoclinic crystal systems, while the diffraction lines of Eu(III) complex are indexed for a triclinic crystal system. Methanolic solutions of the ligand and complexes were checked for α-glucosidase and α-amylase inhibitory properties where some of the Ln(III) complexes show significant α-glucosidase inhibitory potency while only Tb(III) complex shows inhibition against α-amylase.

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Section: Introductionmentioning

confidence: 75%

Synthesis, Spectroscopy and Biological Activities of Some Trivalent Lanthanide Complexes of Octadecyl N-salicylaldimine (ONsal)

Meitei,

Sheikh,

Lonibala

2024

ajc

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“…The ability of Schiff bases to readily create stable complexes with most of the transition metal ions in the periodic table, that is why they play such an essential role in inorganic chemistry [3]. They also exhibited luminous characteristics [4]. Schiff base metal complexes are important in industrial, agricultural, analytical and synthetic chemistry [5,6].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Novel Schiff Base Complexes of Cu (II), Cd (II), Ni (II), and Co (II) Ions with N'-(4-Nitrobenzylidene) Isonicotinohydrazide

Akramullazi,

Sultana,

Kudrat-E-Zahan

et al. 2024

IRJPAC

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The Schiff base complexes of Cu (II), Cd (II), Ni (II), and Co (II) ions were synthesized utilizing Schiff base ligand. The Schiff base ligand was produced through the reaction of isoniazid with equimolar quantities of p-nitrobenzaldehyde yielding final product of N'-(4-nitrobenzylidene) isonicotinohydrazide (L). The ligand and its metal complexes were assessed by TLC, melting point determination, conductivity measurement, FTIR spectroscopy, magnetic moment analysis, and UV-Vis spectroscopy. The FTIR spectra revealed that the Schiff base ligand established coordination bonds with the metal ion by utilizing the nitrogen (N) atom of the azomethine group and the oxygen (O) atom of the carbonyl group. All synthesized compounds exhibited cytotoxicity against brine shrimp nauplii, thereby confirming their biological activity. [Ni(L)2] and [Cd(L)2] complexes displayed greater cytotoxic or anticancer efficacy. In addition, the antibacterial efficacy of both ligand and its complexes was investigated against several harmful bacteria. In comparison with the ligand (L), the antibacterial activity of the complexes of [Cu(L)2], [Cd(L)2], and [Ni(L)2] is higher, whereas that of [Co(L)2] is lower.

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Complexation studies of N′-[(1E)-1-phenylethylidene]isonicotinohydrazide: An aroylhydrazone Schiff base and lanthanides

Varam

Rajkumari

2017

Journal of Molecular Liquids

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Interactions of N′-[1-(2-Hydroxyphenyl)ethylidene]Isonicotinohydrazide, a Hydrazone Schiff Base and Selected Lanthanides: Potentiometric and Spectral Studies

Cited by 5 publications

References 78 publications

Synthesis, Spectroscopy and Biological Activities of Some Trivalent Lanthanide Complexes of Octadecyl N-salicylaldimine (ONsal)

Synthesis, Spectroscopy and Biological Activities of Some Trivalent Lanthanide Complexes of Octadecyl N-salicylaldimine (ONsal)

Synthesis and Characterization of Novel Schiff Base Complexes of Cu (II), Cd (II), Ni (II), and Co (II) Ions with N'-(4-Nitrobenzylidene) Isonicotinohydrazide

Complexation studies of N′-[(1E)-1-phenylethylidene]isonicotinohydrazide: An aroylhydrazone Schiff base and lanthanides

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