Acid–base equilibria of various oxidation states of aqua–ruthenium complexes with 1,10-phenanthroline-5,6-dione in aqueous media
作者： Tetsuaki Fujihara , Tohru Wada , Koji Tanaka
DOI: 10.1039/B312310C
关键词:
摘要: Syntheses and pH dependent electrochemical properties of aqua–ruthenium(II) complexes, [Ru(trpy)(PDA-N,N′)(OH2)](ClO4)2 ([1](ClO4)2) [Ru(trpy)(PD-N,N′)(OH2)](ClO4)2 ([2](ClO4)2) (trpy = 2,2′:6′,2″-terpyridine, PDA 6-acetonyl-6-hydroxy-1,10-phenanthroline-5-one, PD 1,10-phenanthroline-5,6-dione) are presented. Treatment [Ru(trpy)(PD-N,N′)Cl](PF6) with AgClO4 in a mixed solvent acetone H2O selectively produced the acetonyl-PD complex [1](ClO4)2, similar treatment 2-methoxyethanol gave [2](ClO4)2. The molecular structures both complexes were determined by X-ray structural analysis. proton dissociation constants various oxidations state [1]2+ [2]2+ evaluated simulation E1/2 values those redox potentials depending on pH. revealed that underwent successive Ru(II)/Ru(III) Ru(III)/Ru(IV) couples though two reactions not separated cyclic voltammograms. behavior is reasonably explained only metal-centered but also simultaneous two-electron quinone/catechol couple ligand including contribution hydration carbonyl carbon.
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sci-hub.se 参考文章(76)
M.N. Burnett, C.K. Johnson, ORTEP-III: Oak Ridge Thermal Ellipsoid Plot Program for crystal structure illustrations Other Information: PBD: Jul 1996. ,(1996) , 10.2172/369685
Robert A. Binstead, Thomas J. Meyer, H-atom transfer between metal complex ions in solution Journal of the American Chemical Society. ,vol. 109, pp. 3287- 3297 ,(1987) , 10.1021/JA00245A017
Thomas J. Meyer, Derek J. Hodgson, Yoshinobu Yokomori, 석원경, 김미영, Mechanistic Studies on the Oxidation of Triphenylphosphine by $[(tpy)(bpy)Ru^{IV}=O]^{2+}$ , Structure of the Parent Complex $[(tpy)(bpy)Ru^{II}-OH_2]^{2+}$ Bulletin of The Korean Chemical Society. ,vol. 16, pp. 619- 619 ,(1995)
Katsuaki Kobayashi, Hideki Ohtsu, Tohru Wada, Tatsuhisa Kato, Koji Tanaka, Characterization of a stable ruthenium complex with an oxyl radical. Journal of the American Chemical Society. ,vol. 125, pp. 6729- 6739 ,(2003) , 10.1021/JA0211510
Katsuaki Kobayashi, Hideki Ohtsu, Tohru Wada, Koji Tanaka, Ruthenium Oxyl Radical Complex Containing o-Quinone Ligand Detected by ESR Measurements of Spin Trapping Technique Chemistry Letters. ,vol. 2002, pp. 868- 869 ,(2002) , 10.1246/CL.2002.868
Kiyoshi Tsuge, Masato Kurihara, Koji Tanaka, Energy Conversion from Proton Gradient to Electricity Based on Characteristic Redox Behavior of an Aqua Ruthenium Complex with a Quinone Ligand Bulletin of the Chemical Society of Japan. ,vol. 73, pp. 607- 614 ,(2000) , 10.1246/BCSJ.73.607
Chi Ming Che, Kwok Yin Wong, Wai Ho Leung, Chung Kwong Poon, A high-valent dioxoruthenium(VI) complex of 2,2'-bipyridine (bpy)-preparation and characterization of trans-bis(2,2'-bipyridine)dioxoruthenium(2+) Inorganic Chemistry. ,vol. 25, pp. 345- 348 ,(1986) , 10.1021/IC00223A023
Kenneth J. Takeuchi, Mark S. Thompson, David W. Pipes, Thomas J. Meyer, Redox and spectral properties of monooxo polypyridyl complexes of ruthenium and osmium in aqueous media Inorganic Chemistry. ,vol. 23, pp. 1845- 1851 ,(1984) , 10.1021/IC00181A014
Montserrat Rodríguez, Isabel Romero, Antoni Llobet, Alain Deronzier, Margret Biner, Teodor Parella, Helen Stoeckli-Evans, Synthesis, Structure, and Redox and Catalytic Properties of a New Family of Ruthenium Complexes Containing the Tridentate bpea Ligand Inorganic Chemistry. ,vol. 40, pp. 4150- 4156 ,(2001) , 10.1021/IC010064Q
Xiao Hua, A. Graham Lappin, Preparation and Characterization of cis-.LAMBDA.-[Ru(bpy)2(py)(O)]2+ Inorganic Chemistry. ,vol. 34, pp. 992- 994 ,(1995) , 10.1021/IC00108A036