Preparation, Physical Characterization and Antibacterial Activity of Ni (II), Cu (II), Co (II), Cd (II), Zn (II) and Cr (III) Schiff Base Complex Compounds
Science Journal of Chemistry
Volume 6, Issue 2, April 2018, Pages: 17-23
Received: Jun. 13, 2018; Accepted: Jun. 27, 2018; Published: Jul. 23, 2018
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Md. Motahar Hossain, Department of Chemistry, University of Rajshahi, Rajshahi, Bangladesh
Md. Abul Bashar, Department of Textile Engineering, Khwaja Yunus Ali University, Sirajganj, Bangladesh
Md. Nuruzzaman Khan, Department of Chemistry, Begum Rokeya University, Rangpur, Rangpur, Bangladesh
Pijush Kanti Roy, Department of Chemistry, Mawlana Bhashani Science and Technology University, Santosh, Tangail, Bangladesh
Md. Siddik Ali, Department of Chemistry, University of Rajshahi, Rajshahi, Bangladesh
Md. Akhter Farooque, Department of Chemistry, University of Rajshahi, Rajshahi, Bangladesh
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A Schiff base (SB) derived from p-hydroxy benzaldehyde and 4-aminobenzoic acid. The transition metal complexes of Ni (II), Cu (II), Co (II), Cd (II), Zn (II) and Cr (III) were prepared separately with the Schiff base (SB), which were used as ligand. Several physical tools, in particular; elemental analysis, molar conductivity, magnetic susceptibility, infrared spectroscopy (IR), electronic absorption spectroscopy (ESR) to investigate the chemical structure of the prepared transition metal complexes. The elemental analysis data show the formation of 1:2 [M1:2L] and 1:3 [M2:3L] complexes of the formula of M2+L2 and M3+L3, respectively where M2+ =Ni (II), Cu (II), Co (II), Cd (II), Zn (II) and M3+= Cr (III) and L = Schiff base (SB). The molar conductance (conductivity) measurements were revealed that all the complexes are nonelectrolyte in nature. The infrared (IR) spectral studies indicated the binding sites of the Schiff base ligand with the transition metal ions. The magnetic susceptibility measurements and electronic spectral results supported the predicted coordination geometry of the complexes and magnetic properties (para or dia-magnetic nature) of the complex compounds. The free Schiff base and its complexes have been tested for their antimicrobial activities against several human pathogenic (two gram-positive and two gram-negative) bacteria. The obtained results showed that the complex compounds exhibit moderate to strong antimicrobial activity compared with kanamycin and ampicillin.
Schiff Base, Metal Complex, Spectral Studies, Antimicrobial Activity
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Md. Motahar Hossain, Md. Abul Bashar, Md. Nuruzzaman Khan, Pijush Kanti Roy, Md. Siddik Ali, Md. Akhter Farooque, Preparation, Physical Characterization and Antibacterial Activity of Ni (II), Cu (II), Co (II), Cd (II), Zn (II) and Cr (III) Schiff Base Complex Compounds, Science Journal of Chemistry. Vol. 6, No. 2, 2018, pp. 17-23. doi: 10.11648/j.sjc.20180602.11
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This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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