Macromolecule metal complexes

Kurimura, Y. Macromolecule-Metal Complexes — Reactions and Molecular Recognition. Vol. 90, pp. 105-138. 

Ciardelli F, Tsuchida E, Wohrle D (1996) Macromolecule-metal complexes. Springer, Berlin Heidelberg New York... 

N. Toshima, in R. Barbucci, F. Ciardelli (eds.) Recent Advances and Novel Approaches in Macromolecule-Metal Complexes, Wiley-VCH, Weinheim, 2006, 1. 

Culbertson B. M.// Tokyo Seminar on Macromolecule—metal Complexes. Preprints. 1987. P. 95—96. 

Macromolecule Metal Complexes — Reactions and Molecular Recognition... 

Fundamental Reactions of Macromolecule-Metal Complexes in Solution. .. 106... 

In this review, however, only recent studies of the reactions of macromolecule-metal complexes will be reviewed. There have been some exellent reviews recently on macromolecule-metal complexes regarding syntheses, formation, characterization and catalytic activities l solar energy conversion 2), artificial oxygen carriers 3), and electrode processes 4). Furthermore, the preprints of the 1st International Conference on Macromolecule-Metal Complexes Tokyo Seminar on Macromolecule-Metal Complexes were published in 19875). These reviews and the preprints give useful information about the recent development of the basic and applied chemistry of macromolecule-metal complexes. 

The rates of complex formation and ligand substitution reactions of the polymer-bound Co(III) complexes depend on the dynamic property of the polymer domains. Reports on the kinetics of complex formation and ligand substitution of macromolecule-metal complexes are, however, relatively scarce. They include investigations on the complexation of poly-4-vinylpyridine with Ni2+ by the stopped conductance technique 30) and on a ligand substitution reaction of the polymer-bound cobalt(III) complexes 31>. 

Interactions of metal complexes with biological substances such as DNA and RNA are of major interest in the field of macromolecule-metal complexes. 

A large number of investigations of the mechanism of electron transfer reactions of macromolecule-metal complexes in biological systems has been reported. These investigations were concerned with not only natural metalloenzymes such as cytochromes, ferredoxin, blue coppers, oxygenase, peroxidase, catalase, hemoglobin, and ruberodoxin, but also modified metalloenzymes 47). 

Important features of macromolecule-metal complexes as polymer bound catalysts are greater selectivity, recoverability, good facility for treatment, and, especially, appearence of novel catalytic activities. 

Luminescence properties of macromolecule-metal complexes have been well studied to investigate the characteristic behavior of the polymer domains to which the luminescent metal, or metal ion, or metal complex moieties are bound or associated. 

Selective and reversible adsorption of gaseous molecules such as dioxygen, carbon monoxide, ethylene, acetylene, and dinitrogen have been performed by the use of suitable macromolecule-metal complexes. Selective adsorption of metal ions such as UO has also been studied using polymeric ligands. 

Preprints of the Tokyo Seminar on Macromolecule — Metal Complexes (1987)... 

Okamoto Y, Kido J, Britain HG, Paoletti S (1987) Preprints of Tokyo Seminar on Macromolecule — Metal Complexes, Tokyo, p 67... 

Kurimura Y, Kikuchi K, Tsuchida E (1987) Preprint of Tokyo Seminar on Macromolecule Metal Complexes, p 130... 

Kinetically slow steps in the formation of melanin from DOPA are the formation of dopaquinone from DOPA (step 1, kD), the reaction of dopachrome to dihydroxyindole (step 2), and the polymerization to form melanin (step 3, kM). Step 1 and step 2 proceed with about the same rate in the oxidative coupling polymerization catalyzed by tyrosinase. However, step 1 becomes remarkably slow when a macromolecule-metal complex is used as a catalyst. The copper complex in poly(l-vinylimidazole-co-vinylpyrrolidone) has been found [38] to act as an excellent catalyst and to exhibit the highest activity for melanin formation. The ratio of the rate constants ( m/ d) is approximately 3 (tyrosinase... 

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