Photochemical reaction of magnesium tetraphenyl porphyrin with sulfur dioxide |
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| Authors: | Jian Bin Zhang Chun Ping Li Tian Rui Huo Zhan Ying Liu Li Hua Liu Tong Zhang Dong Yan Zhang Xiong Hui Wei |
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| Institution: | a College of Chemical Engineering, Inner Mongolia University of Technology, Huhhot 010051, China;b Department of Applied Chemistry, College of Chemistry & Molecular Engineering, Peking University, Beijing 100871, China |
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| Abstract: | The photochemical reaction of magnesium tetraphenyl porphyrin (MgTPP) with sulfur dioxide (SO2) was investigated in dichloromethane (CH2Cl2) by steady-state fluorescence, UV-vis absorption, MS, and XRD spectroscopic techniques. These spectra showed that under irradiation MgTPP reacted with SO2 to form 1:1 molecular adduct at first step. During the process of keeping irradiation and maintaining the flow of SO2, SO2 was reduced into S2- by MgTPP and the results were detected using MS and XRD techniques. Understanding the photochemical reaction of MgTPP with SO2 is of key interest in elucidating fundamental photochemical reaction mechanisms associated with this class of chlorophyll in the presence of SO2. |
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| Keywords: | Photochemical reaction Sulfur dioxide Magnesium tetraphenyl porphyrin (MgTPP) |
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