Abstract:

We studied the properties of a series of hydroxyphenylporphyrins in alkali via UVVisible, infrared spectroscopy and Raman spectroscopy. It was found that in the base system, the alkali reacted with the peripheral hydroxyls of hydroxyphenylporphyrin, forming the salt, while no interaction between alkali and H on the center of the porphyrin ring took place. This result proves that the center ring of the hydroxyphenylporphyrin ring was stable, electric charges of the porphyrin were mostly distributed on the circumambient substituent on the mesoposition where reaction easily took place react.

Key words: hydroxyphenylporphyrin, alkali, UVVisible spectrum; infrared spectroscopy, Raman spectroscopy