［TPPMn（Ⅲ）］_2O在酸碱及氧化剂作用下的转化

Study on the Conversion of [TPPMn(Ⅲ)]2_O in the Existence of Acid-base or Oxidants

研究了μ－氧代双（四苯基卟吩合锰（Ⅲ））［ＴＰＰＭｎ（Ⅲ）］２Ｏ在酸碱及氧化剂作用下的转化．［ＴＰＰＭｎ（Ⅲ）］２Ｏ在固态或碱性介质中能稳定存在，在酸性或含水介质中转化为相应的单核锰卟啉ＴＰＰＭｎ（Ⅲ）ＯＨ；在空气、Ｈ２Ｏ２或ＰｈＩＯ等氧化剂作用下，被氧化开环，紫外－可见光谱监测上述转化过程发现，对不同氧化剂，［ＴＰＰＭｎ（Ⅱ）］２Ｏ转化的机理不同．

The conversion of μ-oxo-bis [tetraphenylporphinatomanganese(Ⅲ)]2O is found to be stable in the solid state or in base medium, but be converted into corre sponding mononmagnanese(Ⅲ)porphyrin (TPPMn(Ⅲ)OH)in acid medium or water.[TPPMn(Ⅲ)]2O is oxided into the opening-ring compound by the oxidants such as oxygen in the air, H2O2 or PhIO .The different conversion mechanisms of [TPPMn (Ⅲ)]2O at different oxidants are found through monitoring the conversion processes with UV-Vis.