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http://dx.doi.org/10.5012/jkcs.2003.47.6.585

Transition Metal Catalysed Oxidation Reactions and Ligand Effects in Aprotic Solvents  

Kim, Sang-Bock (School of Chemistry and Life Sciences, University of Ulsan)
Publication Information
Journal of the Korean Chemical Society / v.47, no.6, 2003 , pp. 585-590 More about this Journal
Abstract
Cobalt oxygen carrier complex N,N'-ethylenebis(3-methoxysalycylideneiminato)cobalt(II), Co(3MeOsalen) was prepared at $25{\circ}C$. UV and visible absorption spectra of the complex and hydrazobenzene were studied in non-aqueous solvent methanol in the range of wavelength 200-600 nm. The oxidation of hydrazobenzene by oxygen in non-aqueous solvent is catalysed by Co(3MeOsalen). In the presence of triphenylphosphine($PPh_3$), the rate decreases in methanol. This is presumably attributable to the coordination of $PPh_3$ to the Co(3MeOsalen), resulting in the catallytically inactive compound. The initial rates of the oxidation of hydrazobenzene with the ligand triphenylphosphine were measured by the theoretical values of the rates, Rate=$k_1+k_2K_1[P]/1+K_1[P]+K_1K_2[P]^2$. This fact would be a poorer σ-donor ligand than methanol.
Keywords
Ligand Effects;
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  • Reference
1 Kim, S. B., UOU(University Of Ulsan) Report, 1989, 20, 181.
2 Homer, R. B., Cannon, R. D. and Kim, S. S. B., Bull. Korean Chem. Soc., 1985, 6, 115.
3 Pfiffer, P., Breith, E., Lubbe, E., and Tsumaki, T., Justus Liebigs Ann Chem, 1933, 503, 84.   DOI
4 Jones, R.D., Summerville, D.A. and Basolo, F., Chem. Rev., 1979, 79, 139.   DOI
5 Perutz, M. F., Brit. Med. Bull., 1976, 32, 195.   DOI
6 Smith, T. D. and Pilbrow. J. R., Coord. Chem. Rev. 1981, 39, 295.   DOI   ScienceOn
7 Savitskii, A. V., J. Gen. Chem., USSR, 1974, 44, 1518.
8 Zombeck, A., Drago, R.S. Corden, B. B. and Gaul, J. H., J. Am. Chem. Soc. 1981, 103, 7580.   DOI
9 Yamamoto, H., Takayanagi, T. and Kwan, T., Bull. of Chem. Soc. Jpn. 1975, 48, 2618.   DOI
10 Basolo, F., Carter, M. J. and Rillema, D. P., J. Am Chem. Soc. 1974, 96, 392.   DOI
11 Philips, G. G., Eilbeck, W. J. Holms, F. and Vanderill, A. E., J. Chem. Soc. A, 1967, 1161.   DOI
12 Holm, F., Jones, K. M. and Torrible, E. G., J. Chem Soc. A, 1961, 4790.
13 Diel, H., Liggett, L. M., Hach, C. C. and Harrison, G. C., Iowa State Coll. Jour. Science, 1947, 22, 110.
14 Epstein, L. M., Straub, D. K. and Maricondi, C., Inorg. Chem. 1967, 6, 1720.   DOI
15 Wayland, B. B., Minkiewicz, J. V. and Abd-Elmageed, M. E., J. Am Chem. Soc., 1974, 96, 2795.   DOI