Measurement of the diffusion coefficients of [Ru(NH3)6]3+ and [Ru(NH3)6]2+ in aqueous solution using microelectrode double potential step chronoamperometry

被引：154

作者：

Wang, Yijun ^{[1
]}

Limon-Petersen, Juan G. ^{[1
]}

Compton, Richard G. ^{[1
]}

机构：

[1] Univ Oxford, Dept Chem, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2011年 / 652卷 / 1-2期

关键词：

Diffusion coefficient; Hexaammineruthenium(III); Hexaammineruthenium(II); Ion-pairing; Stokes-Einstein equation; TEMPERATURE IONIC LIQUIDS; SUPPORTING ELECTROLYTE; RADICAL CATIONS; REDOX COUPLES; VOLTAMMETRY; FERROCENE; REDUCTION; COMPROPORTIONATION; BENZOQUINONE; OXIDATION;

D O I：

10.1016/j.jelechem.2010.12.011

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Microelectrode double potential step chronoamperometry is reported which allows the measurement of the diffusion coefficients of [Ru(NH3)(6)](3+) and [Ru(NH3)(6)](2+) in aqueous solutions containing various concentrations of the supporting electrolyte, KCl, KNO3 or K2SO4. In the case of K2SO4, ion-pairing of hexaammineruthenium cations is inferred where for KCl and KNO3 no such effects were noted. The triply charged ion was found to have a significantly lower diffusion coefficient than the doubly charged ion with a ratio of similar to 0.71 in the KCl and KNO3 media. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：13 / 17

页数：5

共 50 条

[1] THE INTERACTION OF [RU(NH3)5CL]2+ AND [RU(NH3)6]3+ IONS WITH DNA
TSELEPIKALOULI, E
KATSAROS, N
JOURNAL OF INORGANIC BIOCHEMISTRY, 1989, 37 (04) : 271 - 282
[2] Oxidation of [Ru-II(bpy)(2)(NH3)(2)](2+) to [Ru-II(bpy)(NH3)(NO)](3+) by aqueous chlorine
Assefa, Z
Stanbury, DM
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1996, 211 : 53 - INOR
[3] CHEMISTRY AND OPTICAL PROPERTIES OF 4D AND 5D TRANSITION METAL COMPOUNDS .1. CHLORINATION OF [RU(NH3)6]2+, [RU(NH3)6]3+, AND [RU(NH3)5CL]2+
LIN, SW
SCHREINE.AF
INORGANIC & NUCLEAR CHEMISTRY LETTERS, 1970, 6 (06): : 561 - +
[4] KINETICS OF [RU(NH3)6]2+ - [FEEDTA]-REACTION
MOATTAR, F
BENNET, LE
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1978, 176 (SEP): : 65 - 65
[5] Properties of ion clusters: Interactions of [Ru(NH3)(5)H2O](3+) and [Ru(NH3)(6)](3+) with [Ru(CN)(6)](4-) and [Fe(CN)(6)](4-)
Poulopoulou, VG
Taube, H
INORGANIC CHEMISTRY, 1997, 36 (11) : 2240 - 2241
[6] Metastable excited state and electronic structure of [Ru(NH3)5NO]3+ and [Ru(NH3)4-(OH)NO]2+
Da Silva, SC
Franco, DW
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1999, 55 (7-8) : 1515 - 1525
[7] In situ electrochemistry of Ru(NH3)(6)(3+) in a perfused rat heart
Schoenfisch, MH
Pemberton, JE
Ovadia, M
Levy, M
ELECTROANALYSIS, 1997, 9 (02) : 135 - 140
[8] Structures of some complexes containing the Ru(NH3)(6)(3+) unit
Sobolev, AN
Figgis, BN
AUSTRALIAN JOURNAL OF CHEMISTRY, 1997, 50 (08) : 825 - 830
[9] REACTION OF LIGAND AMMONIA IN RU(NH3)6(3+) WITH ETHYLENIC CARBON
GUENGERICH, CP
SCHUG, K
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1983, 185 (MAR): : 115 - INOR
[10] ELECTRONIC-STRUCTURE AND SPECTRA OF [RU(NH3)(5)PYZ](2+) AND [(NH3)(5)RU-PYZ-RU(NH3)(5)](4+)
SIZOVA, OV
IVANOVA, NV
BARANOVSKII, VI
NIKOLSKII, AB
JOURNAL OF STRUCTURAL CHEMISTRY, 1994, 35 (04) : 433 - 442

← 1 2 3 4 5 →