N. R. Jyothi, N. Farook
Oct 7, 2018
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Journal
Chemical Science Transactions
Abstract
: Two Schiff bases 9 H -carbazole-3-carbaldehyde-4-phenylthiosemicarbazone (CCPTSC) and 2-thiophenecarboxaldehyde-4-methylthiosemicarbazone (TCMTSC) were synthesized. Both the CCPTSC and TCMTSC were characterized by elemental analysis, molar conductivity studies, Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance spectroscopy (NMR), and x-ray powder diffraction (XRD). All the spectral studies confirmed that the formation of both CCPTSC and TCMTSC. Thermal stabilities of the both Schiff bases were reported based on thermogravimetric analysis (TGA) studies. This paper describes synthesis and characterization of two new ligands namely, 9 H -carbazole-3-carbaldehyde-4-phenylthiosemicarbazone (CCPTSC) and 2-thiophene-carboxaldehyde-4-methylthiosemicarbazone (TCMTSC). These newly synthesized chelating agents were characterized with elemental analysis, Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance spectroscopy (NMR), x-ray powder diffraction (XRD). The thermal stabilities of these compounds were established with thermogravimetric analysis studies.