Citation: Jian Bin Zhang, Chun Ping Li, Tian Rui Huo, Zhan Ying Liu, Li Hua Liu, Tong Zhang, Dong Yan Zhang, Xiong Hui Wei. Photochemical reaction of magnesium tetraphenyl porphyrin with sulfur dioxide[J]. Chinese Chemical Letters, ;2010, 21(7): 787-789. doi: 10.1016/j.cclet.2010.03.023 shu

Photochemical reaction of magnesium tetraphenyl porphyrin with sulfur dioxide

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

Received Date: 2 November 2009

Fund Project: This project was financed by Yongfeng Boyuan Industry Co., Ltd., (Jiangxi province, China). Thanks to Professor Wenting Hua and Professor Hongcheng Gao (Peking University, China) for their suggestions on the photochemical interaction mechanism of MgTPP with SO₂.

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 S^2- 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.
- Photochemical reaction,
- Sulfur dioxide,
- Magnesium tetraphenyl porphyrin (MgTPP)
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