Abstract
Porphyrin possesses an 18pi-electron conjugation system and exhibits characteristic Soret and Q band absorption in the UV/vis region. The main elements at meso-positions are known to play a significant role in determining the spectral features and electronic structures of Porphyrin and its analogues. Thus replacement of meso-carbon atoms with hetero atoms, such as oxygen, sulfur, and nitrogen, causes alteration of the optical and electrochemical properties. Recently we found that meso-dioxaporphyrins can be easily synthesized from a reaction of dibromodipyrromethene in the presence of copper and the structure was elucidated by X-ray analysis. In this poster presentation, the synthesis and properties of the novel meso-dioxaporphyrin will be presented.
