Charge transfer of tetraphenylporphyrin zinc complexes incorporated in a poly(2‐vinylpyridine) matrix
作者： JIAN ZHANG , TOSHIYUKI ABE , MASAO KANEKO
DOI: 10.1002/(SICI)1099-1409(199803/04)2:2<93::AID-JPP81>3.0.CO;2-X
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摘要: An indium tin oxide (ITO) electrode was coated by a poly(2-vinylpyridine) (P-2VP) film incorporating tetraphenylporphyrin zinc (ZnTPP) as redox center. A cyclic voltammogram (CV) exhibited couple of waves at 0.7 V (vsAg/AgCl). The potential-step chronoamperospectrometry (PSCAS) measurement carried out on the modified immersed in 0.1 MLiClO4 aqueous solution pH 3.5 under argon atmosphere. Assuming random distribution species macromolecular structure, charge transfer distance between adjacent ZnTPP complexes obtained 1.08 nm. hopping centers (1.01 nm) and bounded motion (0.07 nm after 2h) were according to their different response time electrochemical measurement. Considering contributions from both motion, second order rate constant electron 4.1 × 104 M−1s−1.
sci-hub.se 参考文章(47)
Beat Steiger, Chunnian Shi, Fred C. Anson, Electrocatalysis of the reduction of dioxygen by adsorbed cobalt 5,10,15,20-tetraarylporphyrins to which one, two, or three pentaammineruthenium(2+) centers are coordinated Inorganic Chemistry. ,vol. 32, pp. 2107- 2113 ,(1993) , 10.1021/IC00062A038
A. Bettelheim, D. Ozer, R. Harth, R.W. Murray, Electrochemistry of various substituted aminophenyl iron porphyrins: Part I. Redox properties of dissolved, adsorbed and electropolymerized species Journal of Electroanalytical Chemistry. ,vol. 266, pp. 93- 108 ,(1989) , 10.1016/0022-0728(89)80218-9
Fred C. Anson, David N. Blauch, Jean Michel Saveant, Ching Fong Shu, Ion association and electric field effects on electron hopping in redox polymers. Application to the tris(2,2'-bipyridine)osmium(3+)/tris(2,2'-bipyridine)osmium(2+) couple in Nafion Journal of the American Chemical Society. ,vol. 113, pp. 1922- 1932 ,(1991) , 10.1021/JA00006A010
J. Mark Green, Larry R. Faulkner, Reversible oxidation and rereduction of entire thin films of transition-metal phthalocyanines Journal of the American Chemical Society. ,vol. 105, pp. 2950- 2955 ,(1983) , 10.1021/JA00348A004
Beat Steiger, Fred C. Anson, New Electrocatalysts for the Four-Electron Reduction of Dioxygen Based on (5,10,15-Tris(pentaammineruthenium(II)-4-cyanophenyl)-20- (1-methylpyridinium-4-yl)porphyrinato)cobalt(II) Immobilized on Graphite Electrodes Inorganic Chemistry. ,vol. 33, pp. 5767- 5779 ,(1994) , 10.1021/IC00103A026
A. El Hourch, S. Belcadi, P. Moisy, P. Crouigneau, J.-M. Léger, C. Lamy, Electrocatalytic reduction of oxygen at iron phthalocyanine modified polymer electrodes Journal of Electroanalytical Chemistry. ,vol. 339, pp. 1- 12 ,(1992) , 10.1016/0022-0728(92)80441-6
Zbigniew Gasyna, William R. Browett, Martin J. Stillman, One-electron, visible-light photooxidation of porphyrins in alkyl chloride solutions Inorganic Chemistry. ,vol. 23, pp. 382- 384 ,(1984) , 10.1021/IC00171A024
Chunnian Shi, Fred C. Anson, Multiple intramolecular electron transfer in the catalysis of the reduction of dioxygen by cobalt meso-tetrakis(4-pyridyl)porphyrin to which four Ru(NH3)5 groups are coordinated Journal of the American Chemical Society. ,vol. 113, pp. 9564- 9570 ,(1991) , 10.1021/JA00025A022
William R. Browett, Martin J. Stillman, Magnetic circular dichroism study of porphyrin π cation radical species Inorganica Chimica Acta. ,vol. 49, pp. 69- 77 ,(1981) , 10.1016/S0020-1693(00)90460-2
Tsukasa Yoshida, Kazuhiro Kamato, Masaaki Tsukamoto, Takeaki Iida, Derck Schlettwein, Dieter Wöhrle, Masao Kaneko, Selective electroacatalysis for CO2 reduction in the aqueous phase using cobalt phthalocyanine/poly-4-vinylpyridine modified electrodes Journal of Electroanalytical Chemistry. ,vol. 385, pp. 209- 225 ,(1995) , 10.1016/0022-0728(94)03762-R