Oxygen oxidation of ethylbenzene over manganese porphyrin is promoted by the axial nitrogen coordination in powdered chitosan

Huang Guan; Yuan Ru Xun; Peng Yan; Chen Xiang Feng; Zhao Shu Kai; Wei Su Juan; Guo Wen Xin; Chen Xi

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Oxygen oxidation of ethylbenzene over manganese porphyrin is promoted by the axial nitrogen coordination in powdered chitosan

机译：通过粉末状壳聚糖中的轴向氮气协调促进锰卟啉氧化乙苯的氧氧化

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To understand the role of a cysteinate axial ligand in cytochrome P450 enzyme activity and to explore the actions of the axial ligand in a biomimetic catalyst, tetrakis(4-carboxyphenyl) porphyrin manganese chloride (Mn TCPP) was acylated and ligated onto powdered chitosan (pd-CTS). The grafted material was used as a catalyst for the oxidation of ethylbenzene with molecular oxygen. Common spectroscopic techniques, in particular X-ray photoelectron spectroscopy, were used to characterize the grafted material. We found that the coordination of chitosan to manganese porphyrin changed the electron cloud densities of the manganese ion in the catalytic center. This promoted cleavage of the Mn-Cl bond in the Mn TCPP/pd-CTS, it tripled the catalytic activity of manganese tetrakis(4-carboxyphenyl) porphyrin and the catalytic efficiency of the metalloporphyrin. The catalyst decreased the environmental impact of the oxidation of ethylbenzene to acetophenone and phenethyl alcohol.

机译：为了了解半胱氨酸轴配体在细胞色素P450酶活性中的作用，并探讨亚致催化剂中轴向配体的作用，四（4-羧基苯基）卟啉氯化锰（MN TCPP）酰化并连接到粉末壳聚糖上（PD -cts）。将接枝材料用作具有分子氧的乙苯氧化的催化剂。常见的光谱技术，特别是X射线光电子能谱，用于表征接枝材料。我们发现壳聚糖对锰卟啉的协调改变了催化中心中锰离子的电子云密度。这种促进Mn-Cl键在Mn TCPP / PD-CTS中的切割，它增加了锰四（4-羧基）卟啉的催化活性和金属卟啉的催化效率。催化剂降低了乙苯氧化对苯乙酮和苯乙烯醇的环境影响。

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来源
《RSC Advances》 |2016年第54期|共9页
作者
Huang Guan; Yuan Ru Xun; Peng Yan; Chen Xiang Feng; Zhao Shu Kai; Wei Su Juan; Guo Wen Xin; Chen Xi;
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作者单位

Guangxi Univ Coll Chem &

Chem Engn Guangxi Coll &

Univ Key Lab Appl Chem Technol &

R Nanning 530004 Peoples R China;

Guangxi Univ Coll Chem &

Chem Engn Guangxi Coll &

Univ Key Lab Appl Chem Technol &

R Nanning 530004 Peoples R China;

Guangxi Univ Coll Chem &

Chem Engn Guangxi Coll &

Univ Key Lab Appl Chem Technol &

R Nanning 530004 Peoples R China;

Guangxi Univ Coll Chem &

Chem Engn Guangxi Coll &

Univ Key Lab Appl Chem Technol &

R Nanning 530004 Peoples R China;

Guangxi Univ Coll Chem &

Chem Engn Guangxi Coll &

Univ Key Lab Appl Chem Technol &

R Nanning 530004 Peoples R China;

Guangxi Univ Coll Chem &

Chem Engn Guangxi Coll &

Univ Key Lab Appl Chem Technol &

R Nanning 530004 Peoples R China;

Guangxi Univ Coll Chem &

Chem Engn Guangxi Coll &

Univ Key Lab Appl Chem Technol &

R Nanning 530004 Peoples R China;

Guangxi Univ Coll Chem &

Chem Engn Guangxi Coll &

Univ Key Lab Appl Chem Technol &

R Nanning 530004 Peoples R China;

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正文语种 eng
中图分类化学;
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1. Oxygen oxidation of ethylbenzene over manganese porphyrin is promoted by the axial nitrogen coordination in powdered chitosan [J] . Huang Guan, Yuan Ru Xun, Peng Yan, RSC Advances . 2016,第54期

机译：通过粉末状壳聚糖中的轴向氮气协调促进锰卟啉氧化乙苯的氧氧化
2. Effect of Mesoporous Chitosan Action and Coordination on the Catalytic Activity of Mesoporous Chitosan-Grafted Cobalt Tetrakis(p-Sulfophenyl)Porphyrin for Ethylbenzene Oxidation [J] . Guan Huang, Lin Qiang Mo, Yan Xun Wei, Catalysts . 2018,第5期

机译：介孔壳聚糖的作用和配位对介孔壳聚糖接枝四（对-磺基苯基）卟啉钴对乙苯氧化催化活性的影响
3. Effect of Mesoporous Chitosan Action and Coordination on the Catalytic Activity of Mesoporous Chitosan-Grafted Cobalt Tetrakis(p-Sulfophenyl)Porphyrin for Ethylbenzene Oxidation [J] . Guan Huang, Lin Qiang Mo, Yan Xun Wei, Catalysts . 2018,第5期

机译：介孔壳聚糖的作用和配位对介孔壳聚糖接枝四（对-磺基苯基）卟啉钴对乙苯氧化催化活性的影响
4. Oxidation of Water to Oxygen with a One-Electron Oxidant Catalyzed by Manganese Porphyrins [C] . Tetsuya Ojiri, Ken Okamoto, Yoshito Endo, The Meeting of the Electrochemical Society . 2003

机译：用锰卟啉催化的单电子氧化剂氧化水与氧气
5. Studies of oxidative dehydrogenation of ethylbenzene to styrene over manganese oxide octahedral molecular sieve (OMS) materials, and, Synthesis of ZK-5 zeolite using novel synthetic methods. [D] . Zhou, Hua. 2001

机译：氧化锰八面体分子筛（OMS）材料上乙苯氧化脱氢制苯乙烯的研究，以及采用新型合成方法合成ZK-5沸石。
6. Improvement of Power Conversion Efficiency of QuantumDot-Sensitized Solar Cells by Doping of Manganese into a ZnS PassivationLayer and Cosensitization of Zinc-Porphyrin on a Modified GrapheneOxide/Nitrogen-Doped TiO2 Photoanode [O] . Mahdi Alavi, Rahmatollah Rahimi, Zahra Maleki, 2020

机译：提高量子的功率转换效率通过将锰掺杂到ZnS钝化中的点敏化太阳能电池修饰石墨烯上卟啉锌的层和共敏化氧化氮掺杂TiO2光电阳极
7. Effect of Mesoporous Chitosan Action and Coordination on the Catalytic Activity of Mesoporous Chitosan-Grafted Cobalt Tetrakis(p-Sulfophenyl)Porphyrin for Ethylbenzene Oxidation [O] . Guan Huang, Lin Mo, Yan Wei, 2018

机译：中孔壳聚糖作用及协调对乙基苯氧化型脱孔壳聚糖接枝钴四（对硫苯基）卟啉催化活性的影响
8. Axial Coordination in Nickel Porphyrins and Nickel-Reconstituted Heme Proteins Investigated by Raman-Difference and Transient-Raman Spectroscopy. [R] . Shelnutt, J. A., Alston, K., Findsen, E. W., 1986

机译：通过拉曼差和瞬态拉曼光谱研究镍卟啉和镍重构血红素蛋白的轴向配位。

Oxygen oxidation of ethylbenzene over manganese porphyrin is promoted by the axial nitrogen coordination in powdered chitosan

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