Synthesis and Characterization of Some Seven Coordinated Complexes of Lanthanide(iii) Perchlorates with 4-[n-(4‘- Ethylbenza-lideneamino)]- Antipyrine Semicarbazone as Primary Ligand and Pyridine as Secondary Ligand

Mixed ligands complexes of lanthanide(III) perchlorates obtained from 4-[N- (ethylbenzalideneamino)]-antipyrine semicarbazone (ebaaps) as primary ligand and pyridine(py) as secondary ligand have been synthesized and characterized. The analytical studies on these compounds include elemental analyses,...

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Bibliographic Details
Published inOriental journal of chemistry Vol. 33; no. 5; pp. 2318 - 2323
Main Author Kaushik, Sanjay Dutt
Format Journal Article
LanguageEnglish
Published Bhopal Oriental Scientific Publishing Company 2017
Subjects
Coordination compounds
Electronic spectra
Gadolinium
Infrared analysis
Infrared spectra
Ligands
Magnetic permeability
Mathematical analysis
Molecular weight
Nitrogen
Parameters
Perchlorates
Resistance
India
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Summary:Mixed ligands complexes of lanthanide(III) perchlorates obtained from 4-[N- (ethylbenzalideneamino)]-antipyrine semicarbazone (ebaaps) as primary ligand and pyridine(py) as secondary ligand have been synthesized and characterized. The analytical studies on these compounds include elemental analyses, molecular weight determination, molar conductance, and magnetic susceptibility, infrared and electronic spectra. The primary ligand, (ebaaps), in these complexes behaves as neutral tridentate (O,N,N) while the secondary ligand pyridine(py) acts as unidentate nitrogen donor. The general composition of these complexes may be given as [Ln(ebaaps)2.py](ClO4)3, [ Ln = La, Pr, Nd, Sm, Gd, Tb, Dy or Ho]. The values of nephelauxetic effect (b), covalence factor (b1/2), Sinha parameter (d %) and the angular overlap parameter (h) of the complexes have been calculated, and their thermal stabilities worked out by TGA.
ISSN:0970-020X
2231-5039
DOI:10.13005/ojc/330521