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机构地区:[1]中山大学化学系,中国科学院兰州化学物理研究所OSSO国家重点实验室,中山大学测试中心
出 处:《离子交换与吸附》1996年第3期217-222,共6页Ion Exchange and Adsorption
基 金:国家自然科学基金;广东省自然科学基金
摘 要:三种铁(Ⅲ)卟啉配合物被直接固载于聚苯乙烯。UV—vis,IR和EPR研究表明,铁(Ⅲ)卟啉是通过醚键共价键合于聚苯乙烯,中心离子铁(Ⅲ)处于高自旋态(S=5/2)。研究了它们作为细胞色素P450模拟体,在以O2为氧源时对环己烷羧化的催化作用,对影响催化活性的因素进行了讨论。Three kinds of polystyrene- bonded chloroporphyrinatoirons were synthesized by a new method and characterized by UV-vis, IR and EPR spectra. The results showed that iron(Ⅲ) porphyrins were covalently bonded to polystyrene via ether linkage. These polystyrene-bonded chloroporphyrinatoiron(Ⅲ) as model systems of cytochrome P - 450 are effective for the hydroxylation of cyclohexane with molecular oxygen under mild conditions and their catalytic activities are higher than those of correspondent nonsupported iron (Ⅲ ) porphyrins. Factors affecting catalytic activities are discussed.
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