Radiolytic reduction of Ag(CN)(2)(-) solution: Ligand effect on the redox potential

被引:12
作者
Texier, I [1 ]
Mostafavi, M [1 ]
机构
[1] UNIV PARIS 11,LAB PHYSICOCHIM RAYONNEMENTS,CNRS URA 75,CTR ORSAY,F-91405 ORSAY,FRANCE
来源
RADIATION PHYSICS AND CHEMISTRY | 1997年 / 49卷 / 04期
关键词
D O I
10.1016/S0969-806X(96)00172-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
gamma-irradiation and pulse radiolysis are used to check experimentally the ligand effect of the redox potential of the cyano-silver monomer couple Ag-1(CN)(2)(-)/Ag-0(CN)(2)(2-) found to be lower than -2.1 V-NHE instead of equal to -2.6 V-NHE as in a previous theoretical evaluation (Remita et al., 1995, Journal of Physical Chemistry 99, 13198). We present a mechanism explaining the reduction of Ag(CN)(2)(-) by the radical anion (CH3)(2)CO- indicating that the redox potential of the couple [2Ag(1)(CN)(2)(-)/Ag-2(+), xCN(-)] lies between -2.1 and -1.7 V-NHE Copyright (C) 1997 Elsevier Science Ltd.
引用
收藏
页码:459 / 464
页数:6
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