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Photochemical reaction of magnesium tetraphenyl porphyrin with sulfur dioxide
Ist Teil von
Chinese chemical letters, 2010-07, Vol.21 (7), p.787-789
Ort / Verlag
Elsevier B.V
Erscheinungsjahr
2010
Link zum Volltext
Quelle
Elsevier ScienceDirect Journals
Beschreibungen/Notizen
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.