カワムラ　クニオ   KAWAMURA Kunio   川村　邦男    所属   広島修道大学  人間環境学部    職種   教授
言語種別	英語
発行・発表の年月	2007/07
形態種別	学術論文
査読	査読有り
標題	Kinetics of the accelerator ligand effect for the complex formation of Cd(II) ion with a cationic water-soluble porphyrin
執筆形態	共著
掲載誌名	Inorg. Chim. Acta
掲載区分	国外
巻・号・頁	360(10),pp.3287-3295
担当範囲	Corresponding author
著者・共著者	◎Kunio Kawamura, Shukuro Igarashi, Takao Yotsuyanagi
概要	A kinetic study of the acceleration activities of inorganic and organic ligands for the incorporation of a Cd(II) ion into 5,10,15,20-tetrakis(4-N-methylpyridyl)porphine (TMPyP) has been performed. The logarithmic values of the rate constants of the Cd-TMPyP formation were proportional to the values of the nucleophilic constant. The acceleration effects of organic ligands increased with the hydrophobicities of the accelerator ligands. The rate constant of the metal ion exchange reaction of Cd(II) with Pb- TMPyP in the presence of bathophenanthroline sulfonic acid was 1400000-fold greater than the reaction of Cd(II) with TMPyP in the absence of an accelerator. The acceleration effect of organic ligands was due to the enhancement of the hydrophobic interaction and the electrostatic interaction between the Cd(II)–accelerator complex and Pb-TMPyP in the outer coordination sphere.