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Received March 3, 2004
Accepted October 13, 2004
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Encapsulation of Bis(ethylenediamine) Copper(II) Complex in Zeolite Matrices - Comparison with Encapsulation of Natural Enzymes Like Cytochrome-C and Vitamin-B12 -
Department of Chemistry, Indian Institute of Technology Madras, Chennai-600 036, India
bvnathan@iitm.ac.in
Korean Journal of Chemical Engineering, January 2005, 22(1), 32-35(4), 10.1007/BF02701458
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Abstract
Bis(ethylenediamine) copper(II) complex was encapsulated in NaY, KL, Na β and NaZSM-5 zeolite. The redox properties of metal complexes in neat and encapsulated state were studied by cyclic voltammetry. The redox potential of metal complex is altered towards negative value upon encapsulation in various zeolites. This may be due to axial interaction with various zeolite matrix. The redox properties of biological systems are also altered (cytochrome-C, and Vitamin-B12) when they are immobilized on NaAlMCM-41 materials. The copper ethylenediamine complex in constrained environment shows higher activity for the oxidation of dimethyl sulfide compared to that of neat complex.
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Clark WM, Oxidation and Reduction Potential of Organic Systems, The Williams and Wilkins Company, Baltimore USA, 451 (1960)
Deshpande S, Srinivas D, Ratnasamy P, J. Catal., 188(2), 261 (1999)
Herman RG, Flentge DR, J. Phys. Chem., 82, 720 (1978)
Kriel LW, Jimenez VL, Balkus KJ, J. Mol. Catal., 10, 453 (2000)
Sauer J, Chem. Rev., 89, 199 (1989)
Senaratne C, Zhang J, Baker MD, Bessel CA, Rolison DR, J. Phys. Chem., 100(14), 5849 (1996)
Utterhoeven L, Dompass D, Mortier WJ, J. Chem. Soc.-Faraday Trans., 88, 2753 (1992)
Viswanathan B, J. Heat Energy and Mass Transfer, 8, 281 (1996)
Vogel AL, A Text Book of Quantative Inorganic Analysis Including Elementary Instrumental Analysis, Longmans, Green & Co limited England, 133 (1964)
