Photochemical reaction of magnesium tetraphenyl porphyrin with sulfur dioxide

• Published in: Chinese chemical letters Vol. 21; no. 7; pp. 787 - 789
• Main Authors: Zhang, Jian Bin, Li, Chun Ping, Huo, Tian Rui, Liu, Zhan Ying, Liu, Li Hua, Zhang, Tong, Zhang, Dong Yan, Wei, Xiong Hui
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.07.2010; College of Chemical Engineering, Inner Mongolia University of Technology, Huhhot 010051, China%Department of Applied Chemistry, College of Chemistry & Molecular Engineering, Peking University, Beijing 100871, China
• Subjects: Magnesium tetraphenyl porphyrin (MgTPP); Photochemical reaction; Sulfur dioxide; X射线衍射技术; 二氧化硫; 光化学反应; 光谱技术; 四苯基卟啉; 稳态荧光; 紫外可见; Sulfur dioxide; Magnesium tetraphenyl porphyrin (MgTPP); Photochemical reaction
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2010.03.023

The photochemical reaction of magnesium tetraphenyl porphyrin（MgTPP） with sulfur dioxide（SO_2） was investigated in dichloromethane（CH_2Cl_2） by steady-state fluorescence,UV-vis absorption,MS,and XRD spectroscopic techniques.These spectra showed that under irradiation MgTPP reacted with SO_2 to form 1：1 molecular adduct at first step.During the process of keeping irradiation and maintaining the flow of SO_2,SO_2 was reduced into S~（2-） by MgTPP and the results were detected using MS and XRD techniques.Understanding the photochemical reaction of MgTPP with SO_2 is of key interest in elucidating fundamental photochemical reaction mechanisms associated with this class of chlorophyll in the presence of SO_2.