Synthesis, Characterization, Antibacterial and Thermal Studies of Cu(II) Complex of Thiophene-2- aldehyde Semicarbazone

Main Article Content

Dipta Sarker
Md. Yeamin Reza
Md. Masuqul Haque
Rausan Zamir
Md. Ali Asraf

Abstract

Copper (II) complex of the ligand, thiophene-2-aldehyde semicarbazone was synthesized and characterized. Their structures were explored on the basis of CHN analysis, conductance and magnetic susceptibility measurements, spectral studies (FT-infrared and ESI-MS) and thermogravimetric analysis (TGA). It has been observed from spectral and analytical studies, the copper complex have the composition of [CuL(CH3COO)2(H2O)] [where L is thiophene-2-aldehyde semicarbazone]. The electrospray mass spectrum of the ligand and complex exhibited ion at mass-to charge ratio (m/z) of 169.13 and 368.86 matching the calculated values for the molecular ion of the ligand and complex, respectively. One mole of the ligand behaves as bidentate chelating agents around the Cu(II) ion. From conductivity studies, we obtained that the copper complex of the ligand, thiophene-2-aldehyde semicarbazone had no ionic properties. All data confirmed a trigonal bipyramidal geometry of the complex. Antibacterial activity of the compounds against the microbe Enterobacter aerogenes and Bacillus cereus have been screened to reflect that the complex has higher antimicrobial activity than the free ligand.

Keywords:
Schiff base, bidentate ligand, complexation, thermal analysis, antibacterial activity.

Article Details

How to Cite
Sarker, D., Reza, M. Y., Haque, M. M., Zamir, R., & Asraf, M. A. (2020). Synthesis, Characterization, Antibacterial and Thermal Studies of Cu(II) Complex of Thiophene-2- aldehyde Semicarbazone. Asian Journal of Applied Chemistry Research, 4(4), 1-10. https://doi.org/10.9734/ajacr/2019/v4i430116
Section
Original Research Article

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