Genre
- Journal Article
The decomposition kinetics of the [Ag(II)L]2+ cation (where L = [15]aneN4) has been studied as a function of [H+] and temperature, in aqueous perchlorate media (ionic strength = 1.00 mol dm-3). The decomposition follows the second-order rate, law, Rate = k[H+][Ag(II)L2+], where k = (6.65 +/- 0.11) x 10(-6) dm3 mol-1 s-1 at 298.2 K. From the temperature dependence, an activation energy of 89.0 +/- 0.7 kJ mol-1 has been determined. The silver(II) complex reaction with peroxodisulphate has also been studied in aqueous perchlorate media. This second-order reaction has an activation energy of 45.6 +/- 3.4 kJ mol-1. The mechanism may be described by reactant ion-pairing followed by a rate-determining step involving silver(II) complex-assisted peroxo-bond fissure.
HAINES, RI, MEM UNIV NEWFOUNDLAND,SIR WILFRED GRENFELL COLL,DEPT CHEM,CORNER BROOK A2H 6P9,NF,CANADA.
READING; C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL
GORDON BREACH SCI PUBL LTD
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Source type: Electronic(1)
Language
- English
Subjects
- ACID DECOMPOSITION
- MECHANISM
- Kinetics
- OXIDATION
- COPPER(II)
- nickel(II)
- Chemistry, Inorganic & Nuclear
- COBALT(III) COMPLEXES
- PEROXODISULFATE
- SILVER(II) TETRAAZAMACROCYCLES
- ANION