Sintesis, pengstrukturan dan sifat kimia Nd(III) isatin 2-metil-3-tiosemikarbazon

Translated title of the contribution: Synthesis, structural, and chemical properties of Nd(III) isatin 2-methyl-3-thiosemicarbazone

Research output: Contribution to journalArticle

Abstract

Rare earth complexes can exhibit higher coordination numbers. The rare earth metal has the ability to form a multitude of geometries and stereochemistries. Studies on rare earth complexes with organic ligands have received considerable attention. Nd(Is2MeTSC)3 [Is2MeTSC= isatin 2-methyl-3-thiosemicarbazone] was synthesized by condensation method. The compounds were structurally characterized by elemental analysis CHNS, FT-IR, NMR and thermo-gravimetric analyses. The elemental analyses for the compounds were in good agreement with the theoretical values. The melting point of the complex was higher than the ligand, as expected. The X-ray crystallographic structures for Is2MTSC showed that in the solid state, the compound existed in the thione form where the C=S bond length was shorter than a single bond C-S, which was 1.82 Å. Is2MTSC adopted an orthorhombic system, a = 14.3434(9), b = 8.4242(5), c = 17.8518(11) Å and Z = 8. The FT-IR spectral data impled a bidentate bonding of Is2MeTSC to Nd(III) ion through carbonyl oxygen and azomethine nitrogen. Thermal analyses (TGA) of the complex was carried out to confirm the final molecular structure of the complex and to study its thermal stability. This study proves that the complex was formed by the coordination of ligand to metal ion and that there was no coordinated water.

Original languageMalay
Pages (from-to)935-941
Number of pages7
JournalMalaysian Journal of Analytical Sciences
Volume19
Issue number5
Publication statusPublished - 2015

Fingerprint

Isatin
Thiosemicarbazones
Chemical properties
Structural properties
Ligands
Rare earths
Rare Earth Metals
Thiones
Stereochemistry
Bond length
Molecular structure
Metal ions
Melting point
Condensation
Thermodynamic stability
Nitrogen
Nuclear magnetic resonance
Ions
Oxygen
X rays

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Sintesis, pengstrukturan dan sifat kimia Nd(III) isatin 2-metil-3-tiosemikarbazon. / Dzulkifli, Nur Nadia; Abdul Aziz, Yang Farina; Mohd. Yamin, Bohari.

In: Malaysian Journal of Analytical Sciences, Vol. 19, No. 5, 2015, p. 935-941.

Research output: Contribution to journalArticle

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abstract = "Rare earth complexes can exhibit higher coordination numbers. The rare earth metal has the ability to form a multitude of geometries and stereochemistries. Studies on rare earth complexes with organic ligands have received considerable attention. Nd(Is2MeTSC)3 [Is2MeTSC= isatin 2-methyl-3-thiosemicarbazone] was synthesized by condensation method. The compounds were structurally characterized by elemental analysis CHNS, FT-IR, NMR and thermo-gravimetric analyses. The elemental analyses for the compounds were in good agreement with the theoretical values. The melting point of the complex was higher than the ligand, as expected. The X-ray crystallographic structures for Is2MTSC showed that in the solid state, the compound existed in the thione form where the C=S bond length was shorter than a single bond C-S, which was 1.82 {\AA}. Is2MTSC adopted an orthorhombic system, a = 14.3434(9), b = 8.4242(5), c = 17.8518(11) {\AA} and Z = 8. The FT-IR spectral data impled a bidentate bonding of Is2MeTSC to Nd(III) ion through carbonyl oxygen and azomethine nitrogen. Thermal analyses (TGA) of the complex was carried out to confirm the final molecular structure of the complex and to study its thermal stability. This study proves that the complex was formed by the coordination of ligand to metal ion and that there was no coordinated water.",
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