Effects of SDS, Triton X-100, and the Binary Mixture of Triton X-100/SDS Surfactants on the Electron Transfer Reaction Between Tris-2,2-bipyridyl Iron(II) and Azidopentacyanocobaltate(III) Complexes

被引:3
|
作者
Ogunlusi, G. O. [1 ]
Ige, J. [1 ]
Oyetunji, A. O. [2 ]
Owoyomi, O. [1 ]
机构
[1] Obafemi Awolowo Univ, Dept Chem, Ife, Nigeria
[2] Univ Botswana, Dept Chem, Gaborone, Botswana
关键词
Azidopentacyanocobaltate(III); electron transfer; inhibition; surfactant mixture; tris-2; 2-bipyridyliron(II); ION-PAIR FORMATION; SODIUM DODECYL-SULFATE; MIXED MICELLES; KINETICS; TRIS(1,10-PHENANTHROLINE)IRON(II); HYDROLYSIS; AQUATION; BENZOATE; BROMIDE; WATER;
D O I
10.1080/01932691.2012.731648
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
Electron transfer reaction between [Fe(bipy)(3)](2+) and [Co(CN)(5)N-3](3-) has been studied in aqueous solutions of SDS, Triton X-100 and SDS/Triton X-100 mixtures. SDS inhibited the electron transfer reaction with inhibition factor k/k(w), in the range 1.00k/k(w)2.53 while Triton X-100 showed no significant effect on the reaction. Binding parameters were obtained using Piszkiewicz model with cooperativity index n=2.184 in the presence of SDS. Binary mixture of surfactants Triton X-100/SDS exhibit inhibition of the reaction at low concentrations of Triton X-100 with relative rate enhancement as the mixture becomes richer in Triton X-100. The results were explained in terms of strong electrostatic and/or hydrophobic interactions between the surfactants and the substrates.
引用
收藏
页码:941 / 946
页数:6
相关论文
共 27 条