Citation: Qian Kun ZHUANG, Xiao Xia GAO. INVESTIGATION ON THE WATER－SOLUBLE YTTERBIUM PORPHYRIN PARTⅡ THE ELECTROCHEMICAL STUDY OF THE YTTERBIUM PORPHYRIN COMPLEX[J]. Chinese Chemical Letters, ;1995, 6(1): 63-66. shu

INVESTIGATION ON THE WATER－SOLUBLE YTTERBIUM PORPHYRIN PARTⅡ THE ELECTROCHEMICAL STUDY OF THE YTTERBIUM PORPHYRIN COMPLEX

Department of Chemistry, Peking University, Beijing, 100871

Received Date: 23 August 1994

Fund Project: This project was supported by the National Natural Science Foundation of China.

A two-electron irreversible adsorptive reduction peak was observed for the water-soluble ytterbium complex by cyclic voltammetry at mercury electrode.At the surface of mercury electrode,the Yb-TPPS complex is adsorbed by the porphyrin ring,and the ytterbium ion is sitting over the porphyrin plane.The centers of adsorption and the redox reaction for the Yb-TPPS complex are all dependent on the porphyrin ring.The Yb³⁺ ions do not take part in the electrochemical processes.After reduction,the ytterbium porphyrin complex is very unstable and disintegrates completely.
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