Volume 1, Issue 2, June 2013, Page: 28-36
Preparation, Characterization, and Catalytic Studies of Iron and Cobalt Complexes Supported by ONNO – Tetradentate Schiff-Base Ligands
Alekha Kumar Sutar, Catalysis Research Lab, Department of Chemistry, Ravenshaw University, Cuttack-3, Odisha, India
Yasobanta Das, School of Applied Sciences (Chemistry), KIIT University, Bhubaneswar, Odisha, India
Sasmita Pattanaik, Catalysis Research Lab, Department of Chemistry, Ravenshaw University, Cuttack-3, Odisha, India
Anita Routaray, Catalysis Research Lab, Department of Chemistry, Ravenshaw University, Cuttack-3, Odisha, India
Prasanta Rath, School of Applied Sciences (Chemistry), KIIT University, Bhubaneswar, Odisha, India
Tungabidya Maharana, Department of Chemistry, National Institute of Technology, Raipur, India
Received: May 25, 2013;       Published: Jul. 10, 2013
DOI: 10.11648/j.ajac.20130102.13      View  3587      Downloads  174
Abstract
The free and polymer anchored complexes of iron and cobalt [3-MHBdMBn-M and P-3-MHBdMBn-M], supported by ONNO-tetradentate Schiff-base ligands are prepared by the reactions of metal solution with one molar equivalent of unsupported 3-MHBdMBn (N, N'-bis (2-hydroxy-3-methylbenzaldehyde) 4-Methylbenzene-1,2-diamine) or polymer supported (P-3-MHBdMBn) Schiff-base ligands in methanol. The structural study reveals that iron(III) complex of 3-MHBdMBn Schiff base is octahedral in geometry, whereas, cobalt(II) ions complexes is square planar. Complexation of metal ions increased the thermal stability of 3-MHBdMBn Schiff base. The catalytic activities of metal complexes towards the oxidation of phenol are investigated in the presence of hydrogen peroxide. Experimental results indicate that the reactivity of P-3-MHBdMBn-M is dramatically affected by the polymer support over 3-MHBdMBn-M and iron complexes have greater activity than the cobalt analogue.
Keywords
Schiff Base, Polymer Support, Catalysis, Metal Complexes, Phenol, Oxidation
To cite this article
Alekha Kumar Sutar, Yasobanta Das, Sasmita Pattanaik, Anita Routaray, Prasanta Rath, Tungabidya Maharana, Preparation, Characterization, and Catalytic Studies of Iron and Cobalt Complexes Supported by ONNO – Tetradentate Schiff-Base Ligands, American Journal of Applied Chemistry. Vol. 1, No. 2, 2013, pp. 28-36. doi: 10.11648/j.ajac.20130102.13
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