ELECTRON-TRANSFER AT TETRAHEDRAL COBALT(II) .5. KINETICS OF PERMANGANATE ION REDUCTION

被引：5
作者：
AYOKO, GA
ARABEL, J
机构：
[1] Department of Chemistry, University of Papua New Guinea, Box 320, University Post Office
来源：
TRANSITION METAL CHEMISTRY | 1994年 / 19卷 / 02期
关键词：
D O I：
10.1007/BF00161892
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The kinetics and mechanism of the reduction of MnO4-by CoW12O4O6- in aqueous HClO4 were studied. The reaction follows the rate law: -d[MnO4-]/dt = 5 K(a)k[H+][MnO4-][CoW12O4O6-] with K(a) = 2.99 x 10(-3) mol-1 dm3 and k = 2.00 +/- 0.02 x 10(3) dm6 mol-2 s-1 at 25-degrees-C. Close agreement between k(obs) and k(calc) on the basis of Marcus theory suggest an outersphere mechanism operates. Alkali metal ions catalyse the reaction in the order K+ > Na+ > Li+ and this result has been rationalized.
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页码：212 / 214
页数：3
相关论文
共 24 条
[1]   LINEAR FREE-ENERGY RELATIONS IN REDOX REACTIONS - OXIDATION OF IODIDE-ION BY POLY(PYRIDINE)-IRON(III) COMPLEXES AND HEXACHLOROIRIDATE(IV) ION [J].
ADEDINSEWO, CO ;
ADEGITE, A .
INORGANIC CHEMISTRY, 1979, 18 (12) :3597-3601
[2]   KINETICS AND MECHANISM OF THE REACTIONS OF MONONUCLEAR AND BINUCLEAR RUTHENIUM(III) AMMINE COMPLEXES WITH ASCORBIC-ACID [J].
AKHTAR, MJ ;
HAIM, A .
INORGANIC CHEMISTRY, 1988, 27 (09) :1608-1610
[3]   REDUCTION OF DODECATUNGSTOCOBALTATE(III) BY AQUEOUS-SOLUTIONS OF HYDRAZINIUM ION [J].
AYOKO, GA .
INORGANICA CHIMICA ACTA, 1990, 170 (01) :89-93
[4]   ELECTRON-TRANSFER AT TETRAHEDRAL COBALT(II) .3. KINETICS OF COPPER(II) ION CATALYZED REDUCTION OF PERIODATE [J].
AYOKO, GA ;
IYUN, JF ;
ELIDRIS, IF .
TRANSITION METAL CHEMISTRY, 1992, 17 (05) :423-425
[5]  
AYOKO GA, 1993, TRANSIT METAL CHEM, V18, P275
[6]   STRUCTURE AND REACTIVITY OF THE OXYANIONS OF TRANSITION METALS .8. ACIDITIES AND SPECTRA OF PROTONATED OXYANIONS [J].
BAILEY, N ;
CARRINGTON, A ;
LOTT, KAK ;
SYMONS, MCR .
JOURNAL OF THE CHEMICAL SOCIETY, 1960, (JAN) :290-297
[7]   HETEROPOLY TUNGSTOCOBALTATE ANIONS CONTAINING RESPECTIVELY CO(II) AND CO(III) IN COO4 TETRAHEDRA .1. 12-TUNGSTOCOBALTOATE AND 12-TUNGSTOCOBALTIATE [J].
BAKER, LCW ;
SIMMONS, VE .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1959, 81 (17) :4744-4745
[8]  
BASSETT J, 1982, VOGELS TXB QUANTITAT, P352
[9]  
GORDON G, 1962, INORG CHEM, V1, P29
[10]   KINETIC-STUDY OF THE MNO4-(-)RU(CN)6(4-) REACTION IN ACID PERCHLORATE-MEDIA [J].
HICKS, KW ;
CHAPPELLE, GA .
INORGANIC CHEMISTRY, 1980, 19 (06) :1623-1625
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