Electrochemistry of a tetraruthenated iron porphyrin and its electrostatically assembled bilayered films

被引：26

作者：

Araki, K ^{[1
]}

Toma, HE ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Quim, BR-05599970 Sao Paulo, Brazil

来源：

ELECTROCHIMICA ACTA | 1999年 / 44卷 / 10期

关键词：

tetraruthenated porphyrin; iron porphyrin; dimerization; electrostatically assembled films; electrochemistry;

D O I：

10.1016/S0013-4686(98)00281-3

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical and spectroelectrochemical properties of the mu-meso(tetrapyridyl)porphyrin iron(III)-tetrakis-{bis(bipyridine)(chloro)ruthenium(II)} complex and of its corresponding mu-oxo dimer have been investigated. Strong Fe-Fe interaction in the mu-oxo dimer has been evidenced by the cathodic shift of the Fe-III/II porphyrin redox potential, by more than 0.9 V in comparison with the monomer species (+0.16 V). Electrostatically assembled films constituted by alternating layers of cationic tetraruthenated and anionic tetrasulphonated iron porphyrins have been elaborated and employed in modified electrodes. These films exhibit the characteristic electrochemical waves associated with the Fe-III/II porphyrin and Ru-III/II(bipy)(2)Cl moieties. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1577 / 1583

页数：7

共 22 条

[1] Ordered supramolecular porphyrin arrays from a building block approach utilizing pyridylporphyrins and peripheral ruthenium complexes and identification of a new type of mixed-metal building block [J].

Alessio, E ;

Macchi, M ;

Heath, SL ;

Marzilli, LG .

INORGANIC CHEMISTRY, 1997, 36 (24) :5614-5623

[2] Novel multinuclear catalysts for the electroreduction of dioxygen directly to water [J].

Anson, FC ;

Shi, CN ;

Steiger, B .

ACCOUNTS OF CHEMICAL RESEARCH, 1997, 30 (11) :437-444

[3] ELECTROCHEMISTRY OF A TETRARUTHENATED COBALT PORPHYRIN AND ITS USE IN MODIFIED ELECTRODES AS SENSORS OF REDUCING ANALYTES [J].

ARAKI, K ;

ANGNES, L ;

AZEVEDO, CMN ;

TOMA, HE .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1995, 397 (1-2) :205-210

[4] SYNTHESIS AND CHARACTERIZATION OF A MULTIBRIDGED PORPHYRIN COMPLEX CONTAINING PERIPHERAL BIS(BIPYRIDINE)-RUTHENIUM(II) GROUPS [J].

ARAKI, K ;

TOMA, HE .

JOURNAL OF COORDINATION CHEMISTRY, 1993, 30 (01) :9-17

[5] RECTIFYING PROPERTIES AND PHOTOCONDUCTIVITY OF TETRARUTHENATED NICKEL PORPHYRIN FILMS [J].

ARAKI, K ;

ANGNES, L ;

TOMA, HE .

ADVANCED MATERIALS, 1995, 7 (06) :554-559

[6] Layer-by-layer growth of electrostatically assembled multilayer porphyrin films [J].

Araki, K ;

Wagner, MJ ;

Wrighton, MS .

LANGMUIR, 1996, 12 (22) :5393-5398

[7] LUMINESCENCE, SPECTROELECTROCHEMISTRY AND PHOTOELECTROCHEMICAL PROPERTIES OF A TETRARUTHENATED ZINC PORPHYRIN [J].

ARAKI, K ;

TOMA, HE .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1994, 83 (03) :245-250

[8]

ARAKI K, IN PRESS J PORPHYRIN

[9]

ARAKI K, 1994, J CHEM RES, V100, P1501

[10] CONFORMATIONAL CONTROL OF INTRAMOLECULAR HYDROGEN-BONDING IN HEME MODELS - MAXIMAL CO-II-O-2 BINDING IN A C-CLAMP PORPHYRIN [J].

CHANG, CK ;

LIANG, Y ;

AVILES, G .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (14) :4191-4192

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