期刊名称:Journal of Materials and Environmental Science
印刷版ISSN:2028-2508
出版年度:2014
卷号:5
期号:3
页码:753-756
出版社:University of Mohammed Premier Oujda
摘要:A comparative stud y of new activity catecholase using complex based on three compounds type pentylidene-(4-vinyl -phen yl)-amine L1, butylidene-(4-vinyl-phenyl)-amine L2, sopentylidene-(4-methoxy-phenyl)-amine L3 has been reported. This study was performed to examine the catalytic effect of the in situ-generated copper (II) complexes towards catechol oxidation reaction with atmospheric dioxygen at room temperature. All complexes catalyze the studied reaction with the rate varying fro m a higher 9.5625 μmol L-1min-1for the L2[Cu(CH3CO2)2] to a weaker of 0.2500 μmol L-1 min-1for L2[Cu(NO3)2]. The duplicating of ligand concentration influences in different way the oxidation rates. Against with an excess of catechol, the oxidation rate becomes very low
关键词:Catechol; oxidation; copper; quinone; Schiff base