Synthesis and characterization of indium (III) complexes with chalcone and schiff base ligand

Wong Vun Fu, @ Frankie Wong. (2004) Synthesis and characterization of indium (III) complexes with chalcone and schiff base ligand. [Final Year Project Report] (Unpublished)

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Abstract

This thesis reports the study on the complexation of the indium(III) complexes towards two series of compounds namely chalcone and Schiff base. There are two chalcones, three Schiff bases, and five indium(III) complexes from both respective compounds were synthesized and characterized through the analysis methods such as FT-IR, NMR and CHN. For the conjugate structure in chalcone, -C=C-CO-, a peak of C=O appeared and shifted to right side which is 1640 cm-l in the spectra of FT-IR. .Whereas for the Schiff base compounds, the appearance of peak at 1600 em-I in the spectra of FT-IR shows that the fonnation of C=N in their structure. For all the indium complexes that synthesized through the reaction with chalcone and Schiff base, respectively, the new mode coordination are In-O and In-N. Tautomerization happened for the chalcone ligand during the complexation of indium(III) bromide.

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