光谱学与光谱分析
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锰卟啉/钒取代杂多酸配合物的合成、表征和性能研究
张祯成,安庆大* ,张绍印,王少君*
大连轻工业学院化工与材料学院,辽宁 大连 116034
Manganeseporphyrin/Vanadium-Substituted Polyoxometalate New Coordination Compound: Synthesis,Characterization and Catalytic Activity
ZHANG Zhen-cheng,AN Qing-da* ,ZHANG Shao-yin,WANG Shao-jun*
School of Chemistry Engineering and Material, Dalian Institute of Light Industry,Dalian 116034, China
摘要 : 利用碘化四对(4-三甲氨基苯基)锰卟啉与钒取代杂多酸H5 PMo10 V2 O40 ,在水溶液中,室温下反应合成了锰卟啉/钒取代杂多酸配合物,用红外和紫外光谱技术对其结构进行了表征,发现该配合物中包含着金属卟啉的环状结构与杂多酸的笼状结构,并且二者以化学键的形式键合在一起。以该化合物作为催化剂,以过氧化氢水溶液为氧化剂,在温和的条件下研究了锰卟啉/钒杂多酸配合物对苯的羟基化反应的影响,考察了催化剂的催化活性,探讨了催化剂对苯羟基化反应的活性中心。研究结果表明,杂多酸中的钒原子是其主要的催化活性中心,锰卟啉的存在可以有效地提高其催化活性。
关键词 :杂多酸;卟啉;配合物;催化氧化
Abstract :A new kind of manganeseporphyrin/vanadium-substituted polyoxometalate coordination compound was synthesized by meso-tetrakis(4-trimethylamidiophenyl)manganeseporphyrin and vanadium-substituted polyoxometalate H5 PMo10 V2 O 40 reacting in water solution at room temperature, and its structures were studied by IR spectrometry and UV-Vis spectrometry. The results show that metalloporphyrin ring structure and polyoxometalate cage structure still exist in the coordination compound,and these two parts connect with each other by chemical bond. As an excellent catalyst, its effects on benzene hydroxylation and catalytic capabilities were studied with H2 O2 solution as an oxidant under mild reaction condition, meanwhile the catalytic active centre in the benzene hydroxylation reaction was discussed. The results indicated that V atom in polyoxometalate is the main centre of catalytic activity, while the presence of manganeseporphyrin could improve its catalytic activity greatly.
Key words :Polyoxometalate;Porphyrin;Coordination compound;Catalytic oxidation
收稿日期: 2005-12-08
修订日期: 2006-03-28
通讯作者:
安庆大,王少君
E-mail: anqd@dlili.edu.cn
引用本文:
张祯成,安庆大* ,张绍印,王少君* . 锰卟啉/钒取代杂多酸配合物的合成、表征和性能研究[J]. 光谱学与光谱分析, 2007, 27(01): 88-90.
ZHANG Zhen-cheng,AN Qing-da* ,ZHANG Shao-yin,WANG Shao-jun* . Manganeseporphyrin/Vanadium-Substituted Polyoxometalate New Coordination Compound: Synthesis,Characterization and Catalytic Activity. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(01): 88-90.
链接本文:
https://www.gpxygpfx.com/CN/Y2007/V27/I01/88
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