Binding of nitric oxide to water-soluble iron(III) porphyrins

Autor:	Hiroyasu Imai, Tetsuya Yashiro, Yoshio Uemori, Hiroki Munakata, Shigeo Nakagawa
Rok vydání:	2003
Předmět:	Aqueous solution Inorganic chemistry Partial pressure Porphyrin Reversible reaction Nitric oxide Inorganic Chemistry chemistry.chemical_compound Water soluble Binding equilibrium chemistry Materials Chemistry Physical and Theoretical Chemistry NO binding
Zdroj:	Inorganica Chimica Acta. 349:17-22
ISSN:	0020-1693
DOI:	10.1016/s0020-1693(03)00037-9
Popis:	Binding equilibrium of NO to three water-soluble iron(III) porphyrins was examined spectrophotometrically in aqueous solution. Effects of electron-donor ability and hydrophobicity of porphyrin on the NO binding were discussed on the basis of the thermodynamic data for the binding. In aqueous and organic mixed solvents, NO binding to 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrinatoiron(III) was found to be a two-step reversible reaction. With increasing the NO partial pressure, the Fe(III) complex firstly produces Fe(III)–NO species, followed by generation of Fe(II)–NO species. The results suggest that water would play an essential role in this phenomenon.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2249388eeb2b13a6888225f74c2c7516 https://doi.org/10.1016/s0020-1693(03)00037-9 Zobrazit plný text záznamu Full Text from ScienceDirect