scholarly journals Generalization of the Activated Complex Theory of Reaction Rates. II. Classical Mechanical Treatment

1964 ◽  
Vol 41 (9) ◽  
pp. 2624-2633 ◽  
Author(s):  
R. A. Marcus
Keyword(s):  
Mechanical Treatment ◽  
Reaction Rates ◽  
Complex Theory ◽  
Activated Complex

Studies on metal hydroxy compounds. IX. Kinetics of thermal decomposition of twelve copper halide derivatives

1969 ◽  
Vol 47 (20) ◽  
pp. 3915-3918 ◽  
Author(s):  
P. Ramamurthy ◽  
E. A. Secco
Keyword(s):  
Thermal Decomposition ◽  
Copper Hydroxide ◽  
Copper Halide ◽  
Complex Theory ◽  
Kinetics Of Thermal Decomposition ◽  
Hydroxy Compounds ◽  
Kinetics Of ◽  
Derivatives Of ◽  
Activated Complex

The kinetics of the thermal decomposition of 12 halide (F, Cl, Br, I) derivatives of copper hydroxide are reported. The kinetic results and their interpretation in terms of activated complex theory are compared with the results and interpretation of the thermal decomposition of zinc and cadmium hydroxyhalides.

scholarly journals Kinetics and mechanism of the reduction of n-(2-hydroxyethyl)ethylenediaminetriacetatoiron(III) complex by thioglycol in bicarbonate buffer medium

2018 ◽  
Vol 6 (1) ◽  
pp. 102 ◽  
Author(s):  
I U. Nkole ◽  
C R. Osunkwo ◽  
A D. Onu ◽  
O D. Onu
Keyword(s):  
Salt Effect ◽  
Reaction Medium ◽  
Outer Sphere ◽  
Reaction Rates ◽  
Kinetics And Mechanism ◽  
Bicarbonate Buffer ◽  
First Order ◽  
Buffer Medium ◽  
Activated Complex ◽  
Sphere Mechanism

The kinetics and mechanism of reduction of N-(2-hydroxyethyl) ethylenediaminetriacetatoiron (III) complex (hereafter [Fe(III)HEDTAOH2]) by thioglycol (hereafter RSH) has been studied spectrophotometrically in a bicarbonate buffer medium. The study was carried out under pseudo-first order conditions of an excess of thioglycol concentration at 28 ± 1℃, I = 0.44 mol dm-3 (KNO3) and λmax = 490 nm. The reaction is first order in [Fe(III)HEDTAOH2] and half order in [RSH] and a stoichiometric mole ratio of [Fe(III)HEDTAOH2]: RSH is 2:1. Reaction rates increased with increase in ionic strength (I) and dielectric constant (D) of the reaction medium of the reaction. The reaction displayed positive primary salt effect, which suggests the composition of activated complex are likely charged reactants ions. Test for possibility of an intermediate complex formation shows negative as Michaelis-Menten plot was linear with very negligible intercept. Based on the findings, outer-sphere mechanism is proposed for the reaction. The experimental rate law obtained is; - = k2 [Fe(III)HEDTAOH2][RSH]½   

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