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- Title
Preparation of nitrogenous polysaccharide-supported ironporphyrins and their catalysis for the aerobic oxidation of cyclohexane.
- Authors
Guo, C.-C.; Huang, G.; Guo, D.-C.
- Abstract
The coordinations of nitrogenous polysaccharide chitosan and chitin to chloro[tetraphenylporphinato]iron(III) have been investigated by means of the FTIR and UV-VIS analysis techniques, and the effect of their coordination on the aerobic oxidation of cyclohexane catalyzed by ironporphyrin has been studied. The new Fe-N coordination bonds between ironporphyrin and chitosan or chitin were found, and their coordination constants K, which were calculated by means of Langmuirs’s adsorption isotherm equation, were 9.68 × 10−4 and 6.80 × 10−4 L/mol, respectively, at equilibrium. It is shown that the coordination of the nitrogenous polysaccharide to ironporphyrin had an important influence on both the conversion and selectivity of the aerobic oxidation of cyclohexane catalyzed by ironporphyrin. The selectivity to the cyclohexanone and cyclohexanol production, the catalyst turnover, and the rate constants k of cyclohexane oxidation increased with increasing coordination constant K.
- Subjects
PORPHYRINS; IRON compounds; CATALYSIS; CYCLOHEXANE; CHITOSAN; CHITIN; CHEMICAL bonds
- Publication
Kinetics & Catalysis, 2006, Vol 47, Issue 1, p93
- ISSN
0023-1584
- Publication type
Article
- DOI
10.1134/S0023158406010149