Kinetics of ternary complex formation between NiII species and pyridine-2-azo-p-dimethylaniline at high pressure, by a laser temperature-jump method

1976 ◽  
Vol 72 (0) ◽  
pp. 1362 ◽  
Author(s):  
Michael W. Grant ◽  
Christopher J. Wilson
Keyword(s):  
High Pressure ◽  
Complex Formation ◽  
Ternary Complex ◽  
Temperature Jump ◽  
Ternary Complex Formation ◽  
Laser Temperature Jump ◽  
Kinetics Of

The Kinetic Activation Volumes for the Binding of Iodide to Cobalamin (Vitamin B12) Studied on a High Pressure Laser Temperature Jump Apparatus

1974 ◽  
Vol 52 (6) ◽  
pp. 910-914 ◽  
Author(s):  
Brian B. Hasinoff
Keyword(s):  
High Pressure ◽  
Metal Ion ◽  
Temperature Jump ◽  
Outer Sphere ◽  
Dissociation Rate ◽  
Vitamin B ◽  
Laser Temperature Jump ◽  
Dissociation Rate Constants ◽  
Kinetics Of ◽  
Activated Complex

The relaxation kinetics of the reaction of iodide with cobalamin (vitamin B12) were studied on a high pressure laser temperature jump apparatus in aqueous solution at 25° and ionic strength 0.2 M. Analysis of the pressure dependence of the formation and dissociation rate constants gave their respective volumes of activation to be: ΔVf* = 5.50 ± 0.8 cm3 mol−1 and ΔVd* = 11.5 ± 1.6 cm3 mol−1 The positive activation volume for formation of the complex, ΔVf*, after appropriate correction for the volume change due to formation of an outer sphere complex, is consistent with a dissociative type mechanism in which the metal ion – water bond is stretched in the activated complex.

Kinetics of ternary complex formation: the (adenosine 5'-triphosphato)nickel(II) + 2,2'-bipyridine system

1986 ◽  
Vol 25 (5) ◽  
pp. 691-696 ◽  
Author(s):  
K. J. Butenhof ◽  
D. Cochenour ◽  
J. L. Banyasz ◽  
J. E. Stuehr
Keyword(s):  
Complex Formation ◽  
Ternary Complex ◽  
Ternary Complex Formation ◽  
Kinetics Of
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