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Citation: MA Hui-Xuan, HU Dao-Dao, . Chitosan Coordinated CoSalen and Its Catalytic Activity in Oxidation of Ethanethiol[J]. Chinese Journal of Applied Chemistry, ;2001, 18(4): 290-294. shu

Chitosan Coordinated CoSalen and Its Catalytic Activity in Oxidation of Ethanethiol

MA Hui-Xuan ,
HU Dao-Dao ,

1.
Department of Chemistry, Shaanxi Normal University, Xi'an 710062

Received Date: 13 July 2000
Available Online: 26 December 2000
Fund Project: 陕西省自然科学基金资助项目(98H02) (98H02)

A silica supported catalyst, CoSalen (Co(Ⅱ) complex of bis (salicylideneethylene diamine)) coordinated with chitosan (SiO₂-CS-CoSalen), was prepared. The chitosan film coated on the silica surface was characterized through elemental analysis, IR, fluorescence spectrophotometry, ESR and XPS. It is found that the coordination is realized through binding of N in chitosan with the Co(Ⅱ) in CoSalen complex. Because the site isolation effect present in CS-CoSalen may inhibit the formation of dimers and_ -oxo-dimers of CoSalen, the coordinated CoSalen showed a more efficient activity in the oxidation reaction of ethanethiol than the monomeric complex.
- chitosn,
- bis (salicylideneethylenediamine) Co(Ⅱ) complex,
- ethanethiol,
- ethanethiol catalytic oxidation
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