Fifteen rare earth-tetraphenylporphyrin(RE-TPP)complexes were directly prepared by mixing equal molar concentrations of RE(ClO_4)_3 and H_2TPP in acetone media.The electrochemical behaviors of these com- plexes and th...Fifteen rare earth-tetraphenylporphyrin(RE-TPP)complexes were directly prepared by mixing equal molar concentrations of RE(ClO_4)_3 and H_2TPP in acetone media.The electrochemical behaviors of these com- plexes and the influence of dissolved oxygen were investigated by voltammetry.Althrough there are some differ- ence between the behaviors of light and heavy rare earth-porphyrins,the central RE ions of the all fifteen com- plexes were reduced from tervalent to divalent state,meanwhile the dissovled oxygen was reduced as superoxide ion O^-.which readily combined with the complex forming peroxide additive complex such as RE-TPP·O^(2-)_2.展开更多
基金Project supported by National Natural Science Foundation of China
文摘Fifteen rare earth-tetraphenylporphyrin(RE-TPP)complexes were directly prepared by mixing equal molar concentrations of RE(ClO_4)_3 and H_2TPP in acetone media.The electrochemical behaviors of these com- plexes and the influence of dissolved oxygen were investigated by voltammetry.Althrough there are some differ- ence between the behaviors of light and heavy rare earth-porphyrins,the central RE ions of the all fifteen com- plexes were reduced from tervalent to divalent state,meanwhile the dissovled oxygen was reduced as superoxide ion O^-.which readily combined with the complex forming peroxide additive complex such as RE-TPP·O^(2-)_2.
